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
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
Sharlene,
You find all the FEFLOW manuals on
on http://www.wasy.de/english/products/feflow/doku.html
Especially the Reference Manual and the White Papers Vol. II contain
detailed information about density-dependent simulations (seawater
intrustion) and how FEFLOW handles these.
For additional and more detailed questions, you might also contact the
FEFLOW support team (support@...).
Best regards,
Peter
WASY GmbH
Dear Sharlene,
I think, first of all, you must read any good book(s) on "Groundwater
Modelling". To begin with, you can refer "Introduction to Groundwater
Modelling" by Wang & Anderson.
For more details on seawater intrusion, you can refer the
book "Seawater Intrusion in Coastal Aquifers - Concepts, Methods and
Practices" by Jacob Bear and others.
Best Wishes
Kumar
--- In feflow@..., "Sharlene" <sha_898@...> wrote:
>
> Aug 5, 2007
>
> Dear Kumar,
>
> Good Afternoon
>
> Thank you for the infos that you have give. I just want to know how
> to make a model (like to make the source code)? Cause I really
can't
> understand the formulas etc etc.... What are the data that I need
to
> get before starting my modelling?? like maps, water level etc...
> thanks
>
> Sharlene
Aug 5, 2007
Dear Kumar,
Good Afternoon
Thank you for the infos that you have give. I just want to know how
to make a model (like to make the source code)? Cause I really can't
understand the formulas etc etc.... What are the data that I need to
get before starting my modelling?? like maps, water level etc...
thanks
Sharlene
--- In feflow@..., "C. P. Kumar" <cpkumar@...> wrote:
>
> Dear Sharlene,
>
> For details on FEFLOW, you can visit the website
> http://www.feflow.com/
>
> You may also study the following paper/report/powerpoint
presentation
> to have an idea about seawater intrusion modelling -
>
> http://www.angelfire.com/nh/cpkumar/publication/ernac.pdf (case
study
> using SUTRA model)
>
> http://www.nih.ernet.in/report/Goa.pdf (case study using FEFLOW
model)
>
> http://www.angelfire.com/bc/nihhrrc/Roorkee/swi.ppt (powerpoint
> presentation)
>
> You are welcome to seek any further help or queries in this regard.
>
> 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/
> ==================================================
> Hydrology Resources on the Web:
> http://www.angelfire.com/nh/cpkumar/forums.html
>
> Kumar Links to Hydrology Resources:
> http://www.angelfire.com/nh/cpkumar/hydrology.html
>
> Google Groups in Hydrology:
> http://www.angelfire.com/bc/nihhrrc/google.html
>
> Software User Groups in Groundwater Modelling:
> http://www.angelfire.com/bc/nihhrrc/groups.html
> ==================================================
>
>
>
> --- In feflow@..., "Sharlene" <sha_898@> wrote:
> >
> > August 3, 2007
> >
> > Good Evening
> >
> > Hi! I would like to ask if how thus FEFLOW works. Because i'm
doing
> my
> > thesis about seawater intrusion on acquifers and my adviser is
> > requiring me to come up with a model. Can anyone help me about
this
> > matter? Can I have a copy of those research study that is
related
> to
> > my thesis.. tnx... :)
> >
>
August 3, 2007
Good Evening
Hi! I would like to ask if how thus FEFLOW works. Because i'm doing my
thesis about seawater intrusion on acquifers and my adviser is
requiring me to come up with a model. Can anyone help me about this
matter? Can I have a copy of those research study that is related to
my thesis.. tnx... :)
Peter,
another question: in the definition of the transport material I do not
understand the meaning of "Porosity". Is it the total or the effective
one? In the on line help it seems to be the effective in the user's
manua in the table 5.3 at page 69 it is described as the "void space"
that is the total porosity for me.
Thank you
gio
2007/8/1, peter.schaetzl <p.schaetzl@...>:
> Hi Giovanni,
>
> the pathlines you see are pathlines calculated on a 3D velocity field
> projected to the current slice. You don't see which ones leave the
> layer and which stay in the layer. However, you can use 3D particle
> tracking via 3D options - Pathlines to see the pathlines in 3D and
> project them both vertically and horizontally.
>
> Cheers,
> Peter
For finding additional information about the software and discussing
with other FEFLOW users, you might also join the WASY Web Forum
(http://www.wasy.de/forum).
I hope you'll enjoy your work with FEFLOW!
Peter
WASY GmbH
Hi Giovanni,
the pathlines you see are pathlines calculated on a 3D velocity field
projected to the current slice. You don't see which ones leave the
layer and which stay in the layer. However, you can use 3D particle
tracking via 3D options - Pathlines to see the pathlines in 3D and
project them both vertically and horizontally.
Cheers,
Peter
I am so glad I've found the group, since in Mexico, where I live is relatively
unknown, so I inmediatly started to fill the registration.
I am new in Feflow, but in the last 2 weeks have been "playing" it
intensively, and I find it as a very powerful tool for simulations. I am more
focused in groundwater flow simulations.
So, I will be asking every now and then and hopefuly in short time I would be
able to help others.
Please feel free to send me a message at any chance I will ve very pleased to
have contact with others Feflow users.
I am guessing if there are levels within the group, how does it work? any
advice is of great help.
Thankyou
Berenice
Dear all!
I am sorry to bother you with my questions but as new user of this
powerful program I am not able to understand some things.
in this moment I am trying to understand the results related to
"particle tracking". In particular I would like to understand if the
flow lines I can see in the plane (slice) I choose represent the
projection of the 2D streamline or they represent only the path they
do in that plane. In the first case is it possible to differenziate
the color of the streamlines that go up or down as in modflow?
thank you very much
Giovanni
Hi !
I have a doubt . When I want to insert a well in a 3-d domain should I
assign the disharge on the top or on the bottom of the well screen ? I
thought it was better on the bottom, in this case I dont have to be
worried if the water table goes down below the elevation of the node
where I assigned the discharge, but I saw the example exercise of WASY
and they assigned the disharge on the top.
Thank you very much
Gio
Dear All!
every time I send an email to the mailing list I receive the following
message. What's that?
Gio
---------- Forwarded message ----------
From: Lyris ListManager <lyris-noreply@...>
Date: 26-lug-2007 5.17
Subject: Re: [feflow] attachment
To: g.firmani@...
Sorry, but Lyris ListManager did not find your email address
-> "g.firmani@..."
listed as a member of basinsinfo.
Only members of basinsinfo are allowed to contribute messages.
Because Lyris ListManager could not confirm that you are a member of basinsinfo,
your message was not accepted.
Reply from Moderator
********************
Dear Gio,
After examining the above message and list of members, I found that
"basinsinfo@..." has been subscribed as a member of this list, though
it seems to be posting address for "basinsinfo" mailing list hosted by epa.gov.
So whenever, a message was posted to this group, it was automatically being sent
to basinsinfo@... which returned the message because the sender is not
a member of "basinsinfo".
Any way, I have now removed "basinsinfo@..." from the list of members.
It should resolve the problem.
Thanks for the cooperation.
Moderator
Dear All!
I am sorry for the last email. I have finally found the answer to my
solution. When I run the modflow model I assigned a liner gradient
along the downstream side (the equivalent freswater head), but
apparently seawat transforms the salt head in the fresh head
automatically and it is not necessary to assign a liner gradient as in
Feflow. I tried to run again the new model and the two solutions
(feflow and modflow) now match very well.
Thank you again for yoyur attention
Gio
Hi to evrybody !
Is there anybody who can explain me the results you can see in the attachment?
(attachment not allowed in this group - Moderator)
Could you suggest me an analytical solution to compare with the numerical ones
For both of the model I have used a sqaured mesh grid. the size of any
element was 5x5 m.
thank you in advance
Giovanni
Hi Giovanni,
FEFLOW does not save the optimal configuration. You can check the
parameter set after the PEST run, and if you want to keep it just save
the model (maybe with a new file name).
Cheers,
Peter
Hi to evrybody !
I tried to use the parameter estimator module to optimize the
evaluation of the conductivities and I have succesfully run a model
with it. The problem is that I cant understand where the program saves
the "best" configuration (that one which minimizes the objective
function).
When I try to access to the problem editor form the run section
everything seems to be ok and I could see the new K zones. If I try to
load the output file (the dac file) from the "postprocess" panel I
notice something strange in the K zones I have defined. They are not
the same I saw in advance and the conductivieties are not spatially
homogeneous within the areas I have defined. Have you ever noticed
something like that? What is wrong with my apporach?
Ciao
Gio
Dear collegues,
The 1st Circular of the 8th Hydrogeological International Congress of Greece &
3rd MEM Workshop on Fissured Rocks Hydrology, is ready and the website is
opened.
You will find the 1st Circular of the 8th Hydrogeological International Congress
of Greece and the 3rd Workshop on Fissured Rocks Hydrology and a short note that
informs you about the Congress.
8th Hydrogeological International Congress of Greece & 3rd MEM Workshop on
Fissured Rocks Hydrology.
Athens Greece, 8 -10 October 2008
website: http://www.iah-hellas.geol.uoa.gr
***********************************************
Professor G. Migiros
Agricultural University of Athens
Department of Science
Section of Geological Science
and Atmospheric Environment
P.O.Box: 27602, 100 20 Votanikos
' Τηλ.- Tel.: ++30 210 5294157
Ê Fax: ++30 210 5294161
È Κινητό/mobile: ++30 6944248315
š e-mail : hydrogeology@...
:website: http://www.iah-hellas.geol.uoa.gr
Peter,
thank you again for your support. I thought was possible to do that
with pnt files too as I could import the labels during the
construction of the supermesh. By the way thank you again for the
trick
Gio
2007/7/13, peter.schaetzl <p.schaetzl@...>:
> That's exactly what it is like: You can currently import names only
> from shp files, not from pnt files.
>
> Cheers,
> Peter
Giovanni,
How did you import the files (from wich source). I used SHP files and I never
had problem with it. What is your table structure ?
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@...
Dear all !
I am trying to import the pnt attached, in the section "reference
data->observation single points->import points". When I do that the
program does not recognize the label I have written in the file and I
have to correct manually the title of each point. But when I have
imported the same file when I was building the supermesh everything
worked very well and I could see the labels of the points. Do you have
any idea how it is possible? Is there any other method to make the
program recognize the label or at least the ID sequence I have written
in the file?
Thank you
Giovanni Firmani
Hi Peter !
How are you doing?
thanks a lot for the support you gave me for the other problem.
theoretically, if I use steady state boundary conditions I would be
able to run the model in steady state (flow and transient), isn't it?
So, do you suggest to run the model with the configuration steady flow
and transient transport as you have shown during the course?
Thanks
Gio
2007/7/9, peter.schaetzl <p.schaetzl@...>:
> Dear Giovanni,
>
> a groundwater model shows highly non-linear behaviour under
> density-dependent conditions. So if a model converges well with a
> density ratio of 0, it might not be as stable with a density ratio
> applied. I would recommend that you run the model for a while in
> transient mode until it reaches the steady state. That might be
> required for all the model runs, depending on the complexity of the
> model. Density-dependent models will only converge in steady state
> mode for relatively simple cases.
>
> Good luck!
>
> Peter
Dear Giovanni,
a groundwater model shows highly non-linear behaviour under
density-dependent conditions. So if a model converges well with a
density ratio of 0, it might not be as stable with a density ratio
applied. I would recommend that you run the model for a while in
transient mode until it reaches the steady state. That might be
required for all the model runs, depending on the complexity of the
model. Density-dependent models will only converge in steady state
mode for relatively simple cases.
Good luck!
Peter
Dear all !
I am trying to simulate a simple case of salt water instrusion. The
model is configured in steady state for both flow and transport. I
have also set a global density ratio different from zero for the
entire 3D domain of my model. The problem is I can obtain a
convergence. Setting a zero density ratio for the domain everything
seems to be ok and the program reaches the convergence in few steps.
I tried to change the grid and the number of elements, I have also
tried to increase the number of iterations but it seems that everythig
depends on the density ratio.
Do you have idea regarding my problem? did you encounter my same
problem dealing with salt water intrusion?
Thank you in advance for your help
Kind Regards
Giovanni Firmani
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