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how to write expression for flc2hs?

Posted Jun 23, 2014, 8:01 a.m. EDT Fluid & Heat, Porous Media Flow 0 Replies

Sepideh Ramezani
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Hi Comsolers,

I have an expression which is 1.112e-4*(U_esvr>=1.112e-4)+0.0*(U_esvr<1.112e-4).

I want to use heaviside step function, so how can I write it in flc2hs?

Information: working with fluid flow-porous media and subsurface flow-richards' equation, I want to calculate the infiltration rate during time. exactly like this graph (Attached)

Thanks in advance for your help.
Sepideh
0 Replies Last Post Jun 23, 2014, 8:01 a.m. EDT
COMSOL Moderator

Hello Sepideh Ramezani

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