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Re: How can I add a free-flow Neumann boundary condition to a boundary? @Stefan Finsterle Dear Dr. Finsterle, Thank you so much for the useful reply. I think I am able to solve the problem now with your help. Respectfully, Lang
- Lang
- Lang
- 3 yrs ago
- Questions & Answers
- Reported - view
Re: How can I add a free-flow Neumann boundary condition to a boundary? @Stefan Finsterle Dear Dr. Finsterle, I am sorry. I am still confused about the statement of "appropriate impedance as the weighting factor". Could you explain it more plainly?…
- Lang
- Lang
- 3 yrs ago
- Questions & Answers
- Reported - view
0
The simulation of the general three types of boundaries
Dear Sir or Madam, I just want to simulate the general three types of boundaries (without any specific cases) in the inlet end: Dirichlet, Neumann, and Robin.…
- Lang
- Lang
- 3 yrs ago
- 244
- TOUGHREACT
Re: How can I add a free-flow Neumann boundary condition to a boundary? @Stefan Finsterle Dear Dr. Finsterle, Thank you very much for your helpful reply. I am facing to solve the advection-diffusion problems. Thank you for your answer. Best regards, Lang
- Lang
- Lang
- 3 yrs ago
- Questions & Answers
- Reported - view
Re: How can I add a free-flow Neumann boundary condition to a boundary? @Stefan Finsterle Dear Dr. Finsterle, Based on your explanation and the attached pdf files, my understanding on different boundaries is: Neumann boundary condition is specified through block GENER…
- Lang
- Lang
- 3 yrs ago
- Questions & Answers
- Reported - view
Re: Compiling and Running TOUGHREACT v3.32 using Ubuntu/Linux @Eric Sonnenthal Dear Dr. Sonnenthal, Thank you for your helpful reply. Best regards, Lang
- Lang
- Lang
- 3 yrs ago
- TOUGHREACT
- Reported - view
Re: Compiling and Running TOUGHREACT v3.32 using Ubuntu/Linux @Eric Sonnenthal Dear Dr. @Sonnenthal, @You said: Setting the Courant number (RCOUR in solute.inp) to ~0.5 is the safest way to maintain accuracy for advection-dominated problems.…
- Lang
- Lang
- 3 yrs ago
- TOUGHREACT
- Reported - view
Re: Convergence problem with different mesh size Additionally, the refined model worked well only for flow issue when I tried to set up the MOPR(1)=2 in flow.inp.
- Lang
- Lang
- 3 yrs ago
- TOUGHREACT
- Reported - view
0
Convergence problem with different mesh size
Dear Sir or Madam, Sorry to disturb you. I was running a simple 1D transport model with surface complexation, but it never ends. However, I found it worked when I increased the mesh size from ∆ x =1.…
- Lang
- Lang
- 3 yrs ago
- 1 reply
- 316
- TOUGHREACT
0
Convergence problem for the surface complexation model
Dear Sir or Madam, Sorry to disturb you. I am Lang. I created a 1D transport model with surface complexation. I found it could not achieve convergence,…
- Lang
- Lang
- 3 yrs ago
- 225
- TOUGHREACT
Re: Confused by the choice of boundaries based on the experiment @Eric Sonnenthal Dear Dr. Sonnenthal, Thank you so much for your interesting and helpful explanation. I think I got it now. Best regards, Lang
- Lang
- Lang
- 4 yrs ago
- TOUGHREACT
- Reported - view
Re: Confused by the choice of boundaries based on the experiment @Eric Sonnenthal Dear Dr. Sonnenthal, Sorry to disturb you again. Now I think I get the difference between these two boundaries in the TOUGHREACT model.…
- Lang
- Lang
- 4 yrs ago
- TOUGHREACT
- Reported - view
Re: Confused by the choice of boundaries based on the experiment @Eric Sonnenthal Dear Dr. Sonnenthal, Thank you for your helpful reply. Best regards, Lang
- Lang
- Lang
- 4 yrs ago
- TOUGHREACT
- Reported - view
0
Confused by the choice of boundaries based on the experiment
Dear Sir or Madam, Sorry to disturb you. I want to simulate the 1D contaminant transport using TOUGHTRACT v3.0. My experimental model is the simple constant injection with constant concentration C 0…
- Lang
- Lang
- 4 yrs ago
- 6 replies
- 429
- TOUGHREACT
Re: Failure of flow.inp in TOUGHREACT v3.0 generated by PetraSim @Dear Dr. Sonnenthal, Thank you for your helpful answer. It works now after following your guidance. Best regards, Lang
- Lang
- Lang
- 4 yrs ago
- TOUGHREACT
- Reported - view
0
Failure of flow.inp in TOUGHREACT v3.0 generated by PetraSim
Dear Sir or Madam, Sorry to disturb you. When I run the flow.inp generated by the PetraSim (TOUGHREACT v1.2) in TOUGHREACT v3.0, and I found it could not work.…
- Lang
- Lang
- 4 yrs ago
- 2 replies
- 423
- TOUGHREACT
Re: Failure of convergence in the simple 1D flow model Dear Dr. Stefan Finsterle, Thank you for your prompt and helpful reply. Actually, I wanted to simulate the contaminant transport using TOUGHREACT, and this was just the flow.inp for the TOUGHREACT.…
- Lang
- Lang
- 4 yrs ago
- TOUGH2
- Reported - view
0
Failure of convergence in the simple 1D flow model
Dear Sir or Madam, I just built a simple 1D flow model (EOS9). I found it could not converge with my experimental parameters, however, it worked when I changed the porosity and permeability, (i.e.…
- Lang
- Lang
- 4 yrs ago
- 2 replies
- 469
- TOUGH2
Re: Failure to set up a constant boundary concentration by input a large volume in the first cell
Attachments
- Lang
- Lang
- 4 yrs ago
- TOUGHREACT
- Reported - view
Re: Failure to set up a constant boundary concentration by input a large volume in the first cell @Eric Sonnenthal Dear Dr. Sonnenthal, Sorry to disturb you. Thank you for your helpful reply. I just followed your instruction to reduce the hug grid block volume to a normal one and set up two…
- Lang
- Lang
- 4 yrs ago
- TOUGHREACT
- Reported - view
Re: Failure to set up a constant boundary concentration by input a large volume in the first cell @Eric Sonnenthal Dear Dr. Sonnenthal, Thank you for your prompt and helpful reply. Best regards, Lang
- Lang
- Lang
- 4 yrs ago
- TOUGHREACT
- Reported - view
0
Failure to set up a constant boundary concentration by input a large volume in the first cell
Dear Sir or Madam, Sorry to disturb you. I set up a simple 1-D contaminant transport model using TOUGHREACT v3.0 following the 8.1 Problem 1 – Aqueous Transport with Adsorption (Linear Kd) and Decay…
- Lang
- Lang
- 4 yrs ago
- 4 replies
- 493
- TOUGHREACT
0
Dirichlet and Robin Boundary problem
Dear Sir or Madam, Sorry to disturb you. I am setting up a very simple 1-D contaminant transport model. And I was wondering if I just apply the boundary water with a injection concentration C0 to…
- Lang
- Lang
- 4 yrs ago
- 387
- TOUGHREACT
Re: Effect of the diffusion coefficient(D0) on the TOUGHREACT @Eric Sonnenthal Dear Dr. Sonnenthal, Thank you for your prompt reply. I decreased the maximum time step by a factor of 100 in two approaches: 1) reduced the DELTMX (upper limit for time step size)…
Attachments
- Lang
- Lang
- 4 yrs ago
- TOUGHREACT
- Reported - view
0
Effect of the diffusion coefficient(D0) on the TOUGHREACT
Dear Sir or Madam, Sorry to disturb you. I found a problem when I run the example model in the 8.1 Problem 1 – Aqueous Transport with Adsorption (Linear Kd) and Decay (EOS9) in TOUGHREACT User Guide…
- Lang
- Lang
- 4 yrs ago
- 2 replies
- 543
- TOUGHREACT

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