Hi, In my case, I'm entering value of aereal recharge node basis; so when multiplied by elemental area; do i need to multiply by (area/3) or simply area of...
Hi all, I'm using linear triangular element in finite element modeling. I am taking areal recharge term (LT^-1) node wise. I'm in confusion that, if I'm...
This depends on the assumptions built into the code regarding the contribution an element makes to a node. For triangular elements that approach uniform size...
The early-bird deadline is fast approaching for the 2-day short course "Groundwater Model Development with the Analytic Element Method" in Bethesda, MD, August...
Dear Mr Sydney Try to contact me. It is urgent Contact Number: +966-551749416 Dr. Asif Raza ... From: "Sydney De Silva" To: gwmodel@yahoogroups.com Subject:...
Dear Friends The Centre for Water Resources (CWR), IST, Jawaharlal Nehru Technological University Hyderabad is completing its 25 years of existence in the...
It has been brought to our attention that the URL provided for the AEM course described below did not always work due to spaces in the URL preventing direct...
Dear All, I am using MT3D and only got 300 concentration observations and my model got 30000 cells. When I run the MT3D it fails with the reason that "Maximum...
Tariq Rana
Tariq.Rana@...
Jul 16, 2009 7:00 am
3097
Hello Tariq, MT3D has certain limitations. If you are using MT3DMS, the limitations are as follows: C--MXTRNOP: MAXIMUM NUMBER OF TRANSPORT OPTIONS (PACKAGES)...
SWS Tech1 Mailbox
sws-support@...
Jul 17, 2009 11:14 am
3098
Senior Hydrogeological Engineer / Hydrogeologist We have an immediate opening for a Senior level Hydrogeological Engineer or Hydrogeologist to join our team in...
Hamilton Civil Software has release an Academic Version of their of their popular FlowCalc software for Civil Engineers, Professors, and Students at a fraction...
Dear Members, I am looking for tutorial exercises on the "design of artificial groundwater recharge structures". Any available exercises or web links will be...
Hello all, Is it possible to create a model without having boundary conditions? any help is appreciated. ...
high low
hyloww@...
Jul 19, 2009 8:00 am
3102
No it isn't....
Richard B. Winston
rbwinston@...
Jul 19, 2009 2:40 pm
3103
Very interesting question. I tried this without boundary conditions and with different boundary conditions. It is a great learning experience. The whole model...
Thanks for the answer. We have a small model of few 10s of kilometers in both directions. We have around 50 pumping wells in the center of the model. We...
high low
hyloww@...
Jul 22, 2009 3:49 am
3105
Dear All, I m using LAK3 for simulating a pit lake(GMS).My problem is when I give the batimetry file "tin" to LAK3 it is calculated the volume and the area of...
I don't think so. Normally any model has a default NO FLOW boundary conditions if you create a model without having B.Cs. Hope to answer your questions ~Mat ...
Your model boundaries may be far away from the pumping wells, but a groundwater model still needs boundary conditions. This is a condition both of the...
The default boundary condition at all lateral boundaries, including top and bottom, of any model is no flow. It is impossible to build a model without BCs....
There is a free flow in the wells currently. After running model for 30 years we are seeing huge drawdowns. There are 62 wells, Q from each well is approx:...
high low
hyloww@...
Jul 22, 2009 4:47 am
3110
As Pete pointed out that default BCs are no-flow, that means unknowingly we are having no-flow BCs in our model. If I want to change the BCs what should...
high low
hyloww@...
Jul 22, 2009 4:54 am
3111
The reason we decided to go without BCs is; its a deep confined aquifer with no recharge at all. This aquifer spreads to a large extent but we are modeling a...
high low
hyloww@...
Jul 22, 2009 8:23 am
3112
Sounds like you could approximate this as "distant" constant head boundaries. Tim Glover Senior Environmental Scientist - Geochemistry Geoscience Department...
Glover, Tim
ntglover@...
Jul 22, 2009 12:27 pm
3113
You should be fine with the no flow BC that model defaults to, IF you went far enough that the water levels are not affected. Swamy. ... From: high low...
1. The wells are boundary conditions. 2. If this is a steady-state model, there is no source of water for the model so the model will be unable to find a...
Richard B. Winston
rbwinston@...
Jul 22, 2009 1:57 pm
3115
I don't think so. At least in the steady-state case. Since there is no water being added to the model (no recharge, noflow boundaries) then the model will...
Glover, Tim
ntglover@...
Jul 23, 2009 4:31 am
3116
Having a model without boundaries is a bit like sustainable mining or sustainable landfilling (an oxymoron). Ok, apologies for the poor joke. Agree with...
Hi, I have seen the correspondence on the model without BC. I agree with Mr. Winston in that wells are a BC. But I don't necessarily agree that the transient...
HighLow, As currently configured, the long term drawdown depends on the size of your model and the storage coefficient (or specific yield if the confined...
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