Search found 6 matches

by lpeters
Tue Jan 11, 2005 4:44 pm
Forum: Hydrus 2D (old version 1996 - 2005)
Topic: version differences
Replies: 1
Views: 3381

version differences

Hello Jirka,

I am using version 2.05 of Hydrus-2D. What are the differences with the newer version 2.102? Is it useful to upgrade?

thanks Lies
by lpeters
Wed Jan 05, 2005 2:17 pm
Forum: Hydrus 2D (old version 1996 - 2005)
Topic: infiltration concentration and variable head
Replies: 3
Views: 6973

infiltration concentration and variable head

Hello, I appear to get a strange effect when I am simulating infiltration from a variable head boundary in the presence of an atmospheric boundary. For some reason the concentration of the infiltrating water is zero when no precipitation occurs, and the prescribed value when precipitation does occur...
by lpeters
Wed Dec 08, 2004 1:44 pm
Forum: Hydrus 2D (old version 1996 - 2005)
Topic: Hydrus2D for Linux/Unix
Replies: 1
Views: 3106

Hydrus2D for Linux/Unix

Hello,

Is a version of Hydrus2D available, which is compiled for Linux or Unix?

many thanks
Lies
by lpeters
Wed Nov 24, 2004 7:59 am
Forum: Hydrus 2D (old version 1996 - 2005)
Topic: quantification of dispersion
Replies: 1
Views: 3027

quantification of dispersion

Hello,

Is it possible to quantify the total dispersion generated by Hydrus2D, including the numerical dispersion resulting from the space and time discretisation? Especially for cases when the Peclet number is largrer than 1.

Any comments are welcome!
thanks for your time,
Lies
by lpeters
Thu Nov 18, 2004 8:43 am
Forum: Hydrus 2D (old version 1996 - 2005)
Topic: solution oscillations
Replies: 2
Views: 3630

Dear Jirka, Thanks for the answer, but that is not the problem. I found out that the problem is the use of cumulative values in the solute1.out and Cum_Q.out files. Because the accumulated values get very large, there is apparently a limitation in the accuracy of the presented numbers. Which in my c...
by lpeters
Mon Nov 15, 2004 10:39 am
Forum: Hydrus 2D (old version 1996 - 2005)
Topic: solution oscillations
Replies: 2
Views: 3630

solution oscillations

Hello, I'm simulating solute breakthrough from a field with a ditch on one side with constant rainfall over a period of 30 years. After about 3 years I get oscillations in my water and solute flux solutions. First around 2.25x10-4 and after a few more years around 2.25x10-3. My mesh is quite fine an...