We are currently exploring methods of improving the representation of
evapotranspiration in FEFLOW without having to use the unsaturated zone
package.  Has anyone considered this problem and are there any
interface modules that others have developed to model
evapotranspiration?

Dear all...

My name is Murugan doing PhD in Department of Geology, Anna
University, Chennai, India.
I want how to give data for Flow Data and Transport Data via Nodal
mode.. I have no idea please some body help me....

Best regards

Murugan.R

I've noticed that the time-varying parameters in the FEM file (under
MMLIST), at least some of them, are also in different units; K values
are in the 1e-4 m/s units rather than the m/d units of the MAT_I_FLOW
section of the FEM.

*Pete Sinton*



irixthirteen wrote:
>
> Hi Pejman & others,
>
> The most effective and efficient method for running successive models
> in FEFLOW is thorough the batch or command line mode. You'll need to
> familiarize yourself with the FEFLOW input file format and perhaps
> learn a scripting language such as PERL or C-Shell to substitute your
> input variables. Of course this is not trivial if your input is
> spatially dependent, but it can be done with some effort.
>
> For your sensitivity exercise, you can substitute a numerical
> parameter with a variable (ex. LongDiffParamater, KxxParam,
> DiffParam)and easily substitute these values, execute FEFLOW and
> synthesize your results from a DAR or DAC file. Please keep in mind
> that the input units in the interface and the values in the FEM file
> are not the same units. For example you'll need to convert the file
> units into meters and days. With a bit of grief and ingenuity, you'll
> be able to resolve your problem.
>
> Hope this helps.
>
> Kayyum Mansoor
> Livermore, USA
>
> --- In feflow@... <mailto:feflow%40yahoogroups.co.in>,
> pejman rasouli <pe_rasouli@...> wrote:
> >
> > Hello Everybody,
> >
> > My name is Pejman; I am doing my master thesis on geothermal
> modeling inTuebingen, Germany.
> > I appreciate it if somebody can help me.
> > I have to run many different geothermal scenarios and then compare
> the results; it means I have to run a single conceptual model with
> different gradients, heat flux, conductivities and dispersivities and etc.
> > I am looking for a way that I can run scenarios one after each
> other so that there would be not necessary to change parameters each
> time by hand. I don't know whether Interface Manager can help or I
> have to set up batch files.
> >
> > I will be very thankful if somebody in the group can help me. I
> also attached an example of my model.
> >
> > Many Thanks,
> > Pejman

Can also use PEST to automate certain tasks.  FEFLOW comes with version
4, which may be sufficient, or download newest version from
www.sspa.com.  PEST requires you use FEFLOW's command line (batch
processing) mode.

*Pete Sinton*


pejman rasouli wrote:
>
> Hello Everybody,
>
> My name is Pejman; I am doing my master thesis on geothermal modeling
> inTuebingen, Germany.
> I appreciate it if somebody can help me.
> I have to run many different geothermal scenarios and then compare the
> results; it means I have to run a single conceptual model with
> different gradients, heat flux, conductivities and dispersivities and etc.
> I am looking for a way that I can run scenarios one after each other
> so that there would be not necessary to change parameters each time by
> hand. I don't know whether Interface Manager can help or I have to set
> up batch files.
>
> I will be very thankful if somebody in the group can help me. I also
> attached an example of my model.
>
> Many Thanks,
> Pejman

Hi Pejman & others,

The most effective and efficient method for running successive models
in FEFLOW is thorough the batch or command line mode. You'll need to
familiarize yourself with the FEFLOW input file format and perhaps
learn a scripting language such as PERL or C-Shell to substitute your
input variables.  Of course this is not trivial if your input is
spatially dependent, but it can be done with some effort.

For your sensitivity exercise, you can substitute a numerical
parameter with a variable (ex. LongDiffParamater, KxxParam,
DiffParam)and easily substitute these values, execute FEFLOW and
synthesize your results from a DAR or DAC file.  Please keep in mind
that the input units in the interface and the values in the FEM file
are not the same units.  For example you'll need to convert the file
units into meters and days. With a bit of grief and ingenuity, you'll
be able to resolve your problem.

Hope this helps.

Kayyum Mansoor
Livermore, USA


--- In feflow@..., pejman rasouli <pe_rasouli@...> wrote:
>
> Hello Everybody,
>
>   My name is Pejman; I am doing my master thesis on geothermal
modeling inTuebingen, Germany.
>   I appreciate it if somebody can help me.
>   I have to run many different geothermal scenarios and then compare
the results; it means I have to run a single conceptual model with
different gradients, heat flux, conductivities and dispersivities and etc.
>   I am looking for a way that I can run scenarios one after each
other so that there would be not necessary to change parameters each
time by hand. I don't know whether Interface Manager can help or I
have to set up batch files.
>
>   I will be very thankful if somebody in the group can help me. I
also attached an example of my model.
>
>   Many Thanks,
>   Pejman

Dear Member,

Can you please refer me to any relevant literature (case
studies/papers/web resources) pertaining to unsaturated and saturated
groundwater flow modelling to study the impact of rainwater
harvesting structures and artificial recharge structures on
groundwater system.

My apologies for cross-postings.

Thanks & Regards
Kumar
================================================
C. P. KUMAR
Scientist 'E1'
National Institute of Hydrology
Jal Vigyan Bhawan
Roorkee - 247667 (Uttarakhand)
INDIA

Web Page : http://www.angelfire.com/nh/cpkumar/
================================================
Unfold the Goddess Within:
http://groups.yahoo.com/group/Shambhavi/
================================================

Shaun

Further to my earlier email - you should apply a flux constraint to the solute
boundary so that water entering the model has a specified salinity (as defined
by the boundary condition) and that leaving the model is at the calculated
salinity.  To do this you set a minimum of zero for the mass flux as the
constraint.

Brian

________________________________

From: feflow@... on behalf of shaunglorie
Sent: Thu 1/31/2008 6:59 PM
To: feflow@...
Subject: [feflow] Re: salt lake modelling



In the first instance we are trying to construct an idealized model.
The situation is we have a lake that is hyper saline and was formed
some time ago through evaporation. The groundwater flows towards the
lake and this prevents the salinity from moving far from the lake.
However we are looking at extracting groundwater from the region
adjacent to the lake and are interested in seeing what effect this
abstraction will have on the salt water interface.

The initial simplified model is a 3D block model looking at modelling
salt lake and two hydrological layers. These are a shale layer on top
of a sand aquifer. The extent of the model is 50km by 50km. the shale
layer is 150m thick(top) and sand is 50m thick. The salt lake was
modeled using a rectangular geometry 7.5km in width by 50km by 25m
depth.

At this stage we are not interested in any thermal flow. We have some
data on salinity gradients to calibrate the model. Our primary
interest is on the salinity gradients and their changes with
abstraction of groundwater. We are not modelling the evoporite
formations and we are considering the lake to be a constant source of
hypersaline water.

Any information on how to model and parameterize this type of problem
would be appreciated. We would especially appreciate receiving
similar examples.

Shaun

--- In feflow@... <mailto:feflow%40yahoogroups.co.in> ,
"hydromodeler" <hydromodeler@...>
wrote:
>
> Shaun,
>
> Some questions.
>
> Is it a rift basin and if YES, then are you concerned about the
> thermohaline flow? If you take out the heat, it becomes simpler.
> How have you conceptualized your problem in terms of 2-D or 3-D,
> cross-section, or what? What is the scale of the problem?
> Is this a scientific model where you'll be exploring model behavior
or
> are you looking to calibrate to heads or some other data?
> Do you have data on the salinity gradient?
>
> Is the top of you model flat or are you including advective forcing
> due to gravity, such as flow off of the flanks of a rift basin?
> Are you modeling the evaporite formation?
>
>
> --- In feflow@... <mailto:feflow%40yahoogroups.co.in> ,
"shaunglorie" <shaunglorie@> wrote:
> >
> > hey every one
> >
> > i was wondering if any one had any examples on how to model salt
lakes.
> > Preferably within Australia but not necessary. I am modeling an
aquifer
> > where the salt lake is an evaporation point and has become hyper
> > saline.
> >
> > Any information would be greatly appreciated.
> >
> > Thanks
> > Shaun
> >
>





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[Non-text portions of this message have been removed]

Shaun

You will need to run FEFLOW in solute transport mode that incorporates advection
and dispersion.  You will then need to set the density factor to a value that
accurately reflects density of the brines in the lake.  You should then set the
lake as a Type I flow boundary (ie specified head) and a Type I solute boundary
(ie constant salinity).

You are going to be disappointed with the operation of FEFLOW in this instance.

We have found that where you have sharp salinity gradients, as is the case here,
that your model will become unstable and you will get massive over-estimation
and under-estimation of salinity around the interface.  This problem is
associated with numerical dispersion and can only be solved by using an
extremely fine mesh.  In this regard there is a commonly used rule for cell size
based on the Peclet Number.  I think the rule effectively indicates that the
size of your mesh cells must be less than half the dispersion coefficient that
you are using.  In this type of model your dispersion coefficient should be less
than ten and hence your mesh size needs to be around 5m or smaller.  We have
found that this effectively precludes running a large three dimensional model as
you propose.  We have had success with running two dimensional models with very
small cells but this may not suit the geometry of your particular problem.

We have developed models of this nature in arid parts of Australia where
groundwater salinity can exceed that of seawater.  Generally we have been
interested in the interaction of this groundwater with rivers that carry fresh
water.

Good luck

Brian


________________________________

From: feflow@... on behalf of shaunglorie
Sent: Thu 1/31/2008 6:59 PM
To: feflow@...
Subject: [feflow] Re: salt lake modelling



In the first instance we are trying to construct an idealized model.
The situation is we have a lake that is hyper saline and was formed
some time ago through evaporation. The groundwater flows towards the
lake and this prevents the salinity from moving far from the lake.
However we are looking at extracting groundwater from the region
adjacent to the lake and are interested in seeing what effect this
abstraction will have on the salt water interface.

The initial simplified model is a 3D block model looking at modelling
salt lake and two hydrological layers. These are a shale layer on top
of a sand aquifer. The extent of the model is 50km by 50km. the shale
layer is 150m thick(top) and sand is 50m thick. The salt lake was
modeled using a rectangular geometry 7.5km in width by 50km by 25m
depth.

At this stage we are not interested in any thermal flow. We have some
data on salinity gradients to calibrate the model. Our primary
interest is on the salinity gradients and their changes with
abstraction of groundwater. We are not modelling the evoporite
formations and we are considering the lake to be a constant source of
hypersaline water.

Any information on how to model and parameterize this type of problem
would be appreciated. We would especially appreciate receiving
similar examples.

Shaun

--- In feflow@... <mailto:feflow%40yahoogroups.co.in> ,
"hydromodeler" <hydromodeler@...>
wrote:
>
> Shaun,
>
> Some questions.
>
> Is it a rift basin and if YES, then are you concerned about the
> thermohaline flow? If you take out the heat, it becomes simpler.
> How have you conceptualized your problem in terms of 2-D or 3-D,
> cross-section, or what? What is the scale of the problem?
> Is this a scientific model where you'll be exploring model behavior
or
> are you looking to calibrate to heads or some other data?
> Do you have data on the salinity gradient?
>
> Is the top of you model flat or are you including advective forcing
> due to gravity, such as flow off of the flanks of a rift basin?
> Are you modeling the evaporite formation?
>
>
> --- In feflow@... <mailto:feflow%40yahoogroups.co.in> ,
"shaunglorie" <shaunglorie@> wrote:
> >
> > hey every one
> >
> > i was wondering if any one had any examples on how to model salt
lakes.
> > Preferably within Australia but not necessary. I am modeling an
aquifer
> > where the salt lake is an evaporation point and has become hyper
> > saline.
> >
> > Any information would be greatly appreciated.
> >
> > Thanks
> > Shaun
> >
>





SKM is committed to working with its clients to deliver a sustainable future for
all. Please consider the environment before printing this e-mail.
Notice - This message contains confidential information intended only for the
exclusive use of the addressee named above. No confidentiality is waived or lost
by any mistaken transmission to you. If you have received this message in error
please delete the document and notify us immediately.
Any opinion, text, documentation or attachment received is valid as at the date
of issue only. The recipient is responsible for reviewing the status of the
transferred information and should advise us immediately upon receipt of any
discrepancy.
All email sent to SKM will be intercepted, screened and filtered by SKM or its
approved Service Providers.

[Non-text portions of this message have been removed]

In the first instance we are trying to construct an idealized model.
The situation is we have a lake that is hyper saline and was formed
some time ago through evaporation. The groundwater flows towards the
lake and this prevents the salinity from moving far from the lake.
However we are looking at extracting groundwater from the region
adjacent to the lake and are interested in seeing what effect this
abstraction will have on the salt water interface.

The initial simplified model is a 3D block model looking at modelling
salt lake and two hydrological layers. These are a shale layer on top
of a sand aquifer. The extent of the model is 50km by 50km. the shale
layer is 150m thick(top) and sand is 50m thick. The salt lake was
modeled using a rectangular geometry 7.5km in width by 50km by 25m
depth.

At this stage we are not interested in any thermal flow. We have some
data on salinity gradients to calibrate the model. Our primary
interest is on the salinity gradients and their changes with
abstraction of groundwater. We are not modelling the evoporite
formations and we are considering the lake to be a constant source of
hypersaline water.

Any information on how to model and parameterize this type of problem
would be appreciated. We would especially appreciate receiving
similar examples.

Shaun


--- In feflow@..., "hydromodeler" <hydromodeler@...>
wrote:
>
> Shaun,
>
> Some questions.
>
> Is it a rift basin and if YES, then are you concerned about the
> thermohaline flow?  If you take out the heat, it becomes simpler.
> How have you conceptualized your problem in terms of 2-D or 3-D,
> cross-section, or what?  What is the scale of the problem?
> Is this a scientific model where you'll be exploring model behavior
or
> are you looking to calibrate to heads or some other data?
> Do you have data on the salinity gradient?
>
> Is the top of you model flat or are you including advective forcing
> due to gravity, such as flow off of the flanks of a rift basin?
> Are you modeling the evaporite formation?
>
>
> --- In feflow@..., "shaunglorie" <shaunglorie@> wrote:
> >
> > hey every one
> >
> > i was wondering if any one had any examples on how to model salt
lakes.
> > Preferably within Australia but not necessary. I am modeling an
aquifer
> > where the salt lake is an evaporation point and has become hyper
> > saline.
> >
> > Any information would be greatly appreciated.
> >
> > Thanks
> > Shaun
> >
>

Respected sir,

Good morning.i am poornima doing my project work in Groundwater Modelling by
using FEFLOW.kindly guide me the related details about the work,how FEFLOW can
be used.

Thanking You.

Shaun,

Some questions.

Is it a rift basin and if YES, then are you concerned about the
thermohaline flow?  If you take out the heat, it becomes simpler.
How have you conceptualized your problem in terms of 2-D or 3-D,
cross-section, or what?  What is the scale of the problem?
Is this a scientific model where you'll be exploring model behavior or
are you looking to calibrate to heads or some other data?
Do you have data on the salinity gradient?

Is the top of you model flat or are you including advective forcing
due to gravity, such as flow off of the flanks of a rift basin?
Are you modeling the evaporite formation?


--- In feflow@..., "shaunglorie" <shaunglorie@...> wrote:
>
> hey every one
>
> i was wondering if any one had any examples on how to model salt lakes.
> Preferably within Australia but not necessary. I am modeling an aquifer
> where the salt lake is an evaporation point and has become hyper
> saline.
>
> Any information would be greatly appreciated.
>
> Thanks
> Shaun
>

hey every one

i was wondering if any one had any examples on how to model salt lakes.
Preferably within Australia but not necessary. I am modeling an aquifer
where the salt lake is an evaporation point and has become hyper
saline.

Any information would be greatly appreciated.

Thanks
Shaun

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A 3 day PEST course will be held in Bethesda, Maryland, USA, the week of
April 7th, 2008. Recent PEST development has focused on stabilizing the
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Current course registration fees reflect a 10% "early-bird" registration
discount available through January 31st, 2008. Fees will rise to the full
rate February 1st, 2008. Please write to pest@... with any questions
about the course.



Best wishes ---

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Moderator, pest@...



[Non-text portions of this message have been removed]

Didier,

you can use 'Assign' - 'Database' - IDW with only one neighbor - 'Load
time-constant' data. Hit 'Start' and choose 'interactive' in the
pop-up dialog. Then hit F2 on the keyboard. The wells will be put in
the exact location refining the mesh around. However, you cannot
directly set a target element size. Before you import the wells, you
can use 'Options' - 'Wells' to set a distance between the input point
and the nearest node from which refinement shall be stopped. The lower
the value, the finer the mesh.

Peter Schätzl
Product Manager FEFLOW

Good morning, good afternoon depending on where you are,

I have a model on feflow.
- I want to add a set of new wells that are not localised on existing
nodes (in other words I would like to create new nodes where they are
those new wells)
- And I would like to refine the nesh up to 0.5 m around those wells

I have try to find the solutions myself without any success. Do you
know an automatic way of achieving those items ?

Thanks by advance !
Didier

could be a bunch of reasons.  Is this chain (parent-daughter) decay?  Perhaps
you've specified a rapid decay rate for the first species thus generating a
large source of the second?

Pete Sinton
AquaGeo, Ltd.
11560 Penny Rd
Conifer CO 80433
Cell 720.841.5526
Phone 303.838.7863
Nextel WT 100.708.221
psinton@...


vasanthi arul <vasanthi_arul@...> wrote:                               i
have a problem while running mass transport simulation for multispecies

    While running the simulation for the second species in the list of species
the observed concentrations are very very high.why is it so.

    vasanthi

i have a problem while running mass transport simulation for multispecies

   While running the simulation for the second species in the list of species the
observed concentrations are very very high.why is it so.

   vasanthi

I assume this could work for a well assigned a flux of zero thereby allowing
some assessment of observed versus simulated?

Pete Sinton
AquaGeo, Ltd.
11560 Penny Rd
Conifer CO 80433
Cell 720.841.5526
Phone 303.838.7863
Nextel WT 100.708.221
psinton@...



"peter.schaetzl" <p.schaetzl@...>
wrote:

You can load a reference curve for a pumping well either in the
  observation point properties (in case you have an observation point on
  the well location, too) or in the properties of the diagram window
  (right-click into the window, 'Properties'). You can either simply
  plot the reference curve in the window, or do a scatter plot for the
  different times of the simulation (also from the properties dialog).
  Please be careful in comparing hydraulic head from the model to
  observed hydraulic head in pumping wells. The calculated hydraulic
  head will highly depend on the discretization, giving you correct
  values only if the size of the elements is approx. equal to the well
  radius!

  Good luck!
  Peter Schätzl
  Product Manager FEFLOW
  WASY GmbH

the scatter plot gives you the measured head versus computed head for the
observation points at a particular time.

   how to get the hydraulic head distribution for an observation point at various
time periods.


"peter.schaetzl" <p.schaetzl@...> wrote:

           You can load a reference curve for a pumping well either in the
observation point properties (in case you have an observation point on
the well location, too) or in the properties of the diagram window
(right-click into the window, 'Properties'). You can either simply
plot the reference curve in the window, or do a scatter plot for the
different times of the simulation (also from the properties dialog).
Please be careful in comparing hydraulic head from the model to
observed hydraulic head in pumping wells. The calculated hydraulic
head will highly depend on the discretization, giving you correct
values only if the size of the elements is approx. equal to the well
radius!

Good luck!
Peter Schätzl
Product Manager FEFLOW
WASY GmbH

You can load a reference curve for a pumping well either in the
observation point properties (in case you have an observation point on
the well location, too) or in the properties of the diagram window
(right-click into the window, 'Properties'). You can either simply
plot the reference curve in the window, or do a scatter plot for the
different times of the simulation (also from the properties dialog).
Please be careful in comparing hydraulic head from the model to
observed hydraulic head in pumping wells. The calculated hydraulic
head will highly depend on the discretization, giving you correct
values only if the size of the elements is approx. equal to the well
radius!

Good luck!
Peter Schätzl
Product Manager FEFLOW
WASY GmbH

I don't think feflow keeps track of any observational data, only where that data
is located in the model (see documents regarding "reference distributions"). 
The best you can do is export reference data from feflow  then combine this data
with the observational data via excel or other similar program.

Pete Sinton
AquaGeo, Ltd.
11560 Penny Rd
Conifer CO 80433
Cell 720.841.5526
Phone 303.838.7863
Nextel WT 100.708.221
psinton@...



vasanthi arul <vasanthi_arul@...> wrote:

the version 5.3  can plot measured head versus computed head for the wells at a
particular time period.

    i have a doubt

    How to get the plot of  measured head vs computed head for a well during
various time periods.

    is it possible

    vasanthi

You have to check in the *.dar files, you can select the data for the desired
time in a transient simulation result. After, you can plot the data on a graph
using excel or other application.


Michael Verreault, ing., M.Sc.A.
Hydrogéologue
Resp. Hydrogéologie et Environnement
Les Laboratoires SL
1309, blv. St-Paul
Chicoutimi, QC,    G7J 3Y2
Tel: 418-698-6827
Fax: 418-543-6812
Courriel: michael.verreault@...

the version 5.3  can plot measured head versus computed head for the wells at a
particular time period.

   i have a doubt

   How to get the plot of  measured head vs computed head for a well during
various time periods.

   is it possible

   vasanthi



Giovanni <g.firmani@...> wrote:

           the version 5.3 can plot observed data versus modeled data.

2007/11/7, Michael Verreault <michael.verreault@...>:

> Feflow is not like MODFLOW and don't allow to plot graph of simulated vs
observed head.
>
> You have to export *.dar files in the postprocess of your model and to plot
data on a graph (for example Excel).
>
> I don't really understand the second question.
>
> Regard's,
>
> Michael Verreault, ing., M.Sc.A.
> Hydrogéologue
> Resp. Hydrogéologie et Environnement
> Les Laboratoires SL
> 1309, blv. St-Paul
> Chicoutimi, QC, G7J 3Y2
> Tel: 418-698-6827
> Fax: 418-543-6812
> michael.verreault@...

the version 5.3 can plot observed data versus modeled data.



2007/11/7, Michael Verreault <michael.verreault@...>:

> Feflow is not like MODFLOW and don't allow to plot graph of simulated vs
observed head.
>
> You have to export *.dar files in the postprocess of your model and to plot
data on a graph (for example Excel).
>
> I don't really understand the second question.
>
> Regard's,
>
> Michael Verreault, ing., M.Sc.A.
> Hydrogéologue
> Resp. Hydrogéologie et Environnement
> Les Laboratoires SL
> 1309, blv. St-Paul
> Chicoutimi, QC,   G7J 3Y2
> Tel: 418-698-6827
> Fax: 418-543-6812
> michael.verreault@...

Not a real Problem ...
see the document for FEFLOW ASCII file description ...
maybe create first a dummy-fem-file and save as ASCII
So you see the required format ... its something like this
.. the lines starting with 'x' mean, here's a comment from me ..
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
PROBLEM: A new feflow problem
CLASS (v.5.012)
    2    1    1    3   10    1    8    8
DIMENS
xxxxx number of elements, number of nodes ... the other see documentation
  61303 108800      6      1   2000      0      4      0      0      1
      0      0    145      0      0      0
SCALE
1.782178e-002,3.000000e+002,1.000000e+000,1.000000e+000,0.000000e+000,0.000000e+\
000
xxxxxx here starts the element definition
xxxxxx elemt N1 has nodes 2,3,5146 in upper slice, 5575 ... in lower
slice - one line per element - for each element in 3D- Mesh !
NODE
       2      3   5146   5575   5576  10719
       2   5146    265   5575  10719   5838
       3   5003   5146   5576  10576  10719
       3      4   5003   5576   5577  10576
.......
xxxxx next the node coordinate definition for your mesh (only 2D
geometry! and relative Mesh coordinates)
COOR ... x-coordinates for node 1 .. n
1.50000000000000e+002,1.00000000000000e+002,1.00000000000000e+002,1.000000000000\
00e+002,1.00000000000000e+002,1.00000000000000e+002,1.00000000000000e+002,1.0000\
0000000000e+002,1.00000000000000e+002,1.00000000000000e+002,1.00000000000000e+00\
2,1.00000000000000e+002,
1.00000000000000e+002 ..... <CR>
next without a comment ...
... all y-coordinates for node 1 .. n
1.50000000000000e+002,1.00000000000000e+002,1.00000000000000e+002,1.000000000000\
00e+002,1.00000000000000e+002,1.00000000000000e+002,1.00000000000000e+002,1.0000\
0000000000e+002,1.00000000000000e+002,1.00000000000000e+002,1.00000000000000e+00\
2,1.00000000000000e+002,
1.00000000000000e+002 ..... <CR>

... next comes boundary conditions ... etc ...

now look for the GK_COOR - flag
here's the offset of your mesh to real world

GK_COOR
    4545455.000000, 5800000.000000 -... or something like this

... if you have 3D Mesh search next for ELEV_I - flag ...

ELEV_I
   1.00000000000000e+002    1-5573 (constant elevation for first slice)
2                                 (second slice ...
   9.50000000000000e+001    1-100
   9.50000000000000e+001    100-5570 (nonequal elevations
   9.50000000000000e+001    5571 (nonequal elevations
   9.50000000000000e+001    5572 (nonequal elevations
   9.50000000000000e+001    5573 (nonequal elevations
(you may define one elevation per node, even if equal elevations,
FEFLOW doc sayes,the elevation values have to be sorted -
i checked it without sorting - FEFLOW will do the sorting work for you)
3                                 (third slice ...
   8.00000000000000e+001    1-5573
4
   7.00000000000000e+001    1-5573
.......

Hope this helps,
Thomas

--- In feflow@..., Giovanni <g.firmani@...> wrote:
>
> Dear all,
>
> Is there anybody who can help me to import a mesh in FEFLOW?
> I had previously generated a mesh with another program and now I would
> like to import it with FEFLOW.
>
> Thank you for your help
>
> Giovanni
>

I remembered that with the version 5.0 and 5.1, one can plot the hydrograph
by using a free IFM that is developed and downloadable from wasy’s website
(www.wasy.de).  I am not sure if it is still available in the new version,
but I think it should have some function like that.

About the second question, I am not sure if I understood it correctly too.
If he means to assign the point aquifer property obtained from the scatter
boreholes, he can prepare a pnt file, and do the interpolation for the whole
model domain. But the quality of the interpolation will depend on the
numbers of data points and how large of the model domain.

Regards

Jinhui



From: feflow@... [mailto:feflow@...] On Behalf
Of syed hashmath
Sent: November 9, 2007 8:12 AM
To: feflow@...
Subject: Re: [feflow] Calibration



I guess borja in second question is talking about automatic calibration.



Michael Verreault <michael.verreault@...
<mailto:michael.verreault%40labosl.ca> > wrote:
Feflow is not like MODFLOW and don't allow to plot graph of simulated vs
observed head.

You have to export *.dar files in the postprocess of your model and to plot
data on a graph (for example Excel).

I don't really understand the second question.

Regard's,

Michael Verreault, ing., M.Sc.A.
Hydrogéologue
Resp. Hydrogéologie et Environnement
Les Laboratoires SL
1309, blv. St-Paul
Chicoutimi, QC, G7J 3Y2
Tel: 418-698-6827
Fax: 418-543-6812
michael.verreault@... <mailto:michael.verreault%40labosl.ca>

I guess borja in second question is talking about automatic calibration.



Michael Verreault <michael.verreault@...> wrote:
           Feflow is not like MODFLOW and don't allow to plot graph of simulated
vs observed head.

You have to export *.dar files in the postprocess of your model and to plot data
on a graph (for example Excel).

I don't really understand the second question.

Regard's,

Michael Verreault, ing., M.Sc.A.
Hydrogéologue
Resp. Hydrogéologie et Environnement
Les Laboratoires SL
1309, blv. St-Paul
Chicoutimi, QC, G7J 3Y2
Tel: 418-698-6827
Fax: 418-543-6812
michael.verreault@...

Feflow is not like MODFLOW and don't allow to plot graph of simulated vs
observed head.

You have to export *.dar files in the postprocess of your model and to plot data
on a graph (for example Excel).

I don't really understand the second question.

Regard's,

Michael Verreault, ing., M.Sc.A.
Hydrogéologue
Resp. Hydrogéologie et Environnement
Les Laboratoires SL
1309, blv. St-Paul
Chicoutimi, QC,   G7J 3Y2
Tel: 418-698-6827
Fax: 418-543-6812
michael.verreault@...

Hi averybody!

I would like to know how to work in feflow with field data in order to
calibrate the model...

Could the programm automatically assign the flow materials values from
different observations field points?

Thank you.
B