Question about model convergence

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XH Wang
Posts: 2
Joined: Tue Apr 09, 2019 11:56 pm
Location: China

Question about model convergence

Post by XH Wang » Sat Oct 10, 2020 4:40 am

Dear Prof.Simunek,
Recently, I use HYDRUS-1D with a saturated initial condition. I specified that the pressure head at each node is zero and the model connot converge. However, when I specified h = 0.001 cm or even small, the model can converge and the results seem like normal. Can I use the small pressure head in my model as initial condition, will it lead to mistakes? Could you give me some advice what could cause this small difference?

Thank you very much!

Sincerely yours, Xing.

Jirka
Posts: 5046
Joined: Sat Mar 16, 2002 3:47 pm
Location: USA
Location: Riverside, CA

Re: Question about model convergence

Post by Jirka » Sat Oct 10, 2020 7:31 pm

I have discussed this topic in the Discussion forum multiple times. Search the forum for an answer. J.

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