Water flow parameters in HYDRUS

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Water flow parameters in HYDRUS

Post by litlux » Mon Sep 30, 2019 6:12 am

Dear all

In the "Water Flow Parameters" in HYDRUS (as shown in the attached picture), the l parameter defined in HELP section of HYDRUS is Tortuosity parameter in the conductivity function. I wonder is that the same as pore connectivity parameter from MvG equation and is fixed as 0.5.

Thank you so much

Best regards

Tho Tran
1.PNG (3.69 KiB) Viewed 1369 times

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Location: Riverside, CA

Re: Water flow parameters in HYDRUS

Post by Jirka » Mon Sep 30, 2019 7:07 pm

Yes, it is the same thing. The l parameter is sometimes referred to as the "tortuosity and pore connectivity" parameter. Mualem recommended a value of 0.5, although other people recommended other values (e.g., Schaap et al. in his papers on Rosetta recommended a value of -1).


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