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Old   January 24, 2011, 09:15
Default UDS source term problem
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tom pan
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i have two uds for scalar n0 and n1

now i want to add a source term "gradient (gradient n1)" in n0's equation

but i only find that gradient n1=C_UDSI_G(c,t,1)

how about "gradient (gradient n1)" ?
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Old   January 24, 2011, 22:48
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Ji Junjie
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Quote:
Originally Posted by tompa View Post
i have two uds for scalar n0 and n1

now i want to add a source term "gradient (gradient n1)" in n0's equation

but i only find that gradient n1=C_UDSI_G(c,t,1)

how about "gradient (gradient n1)" ?
Set another additional UDS2 and let UDS2=C_UDSI_G(c,t,1), Then C_UDSI_G(c,t,2) is what you want.
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Old   January 26, 2011, 03:22
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tom pan
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thanks for your anwser. There's another quastion about the error about type of variables.

C_UDSI(c,t,2) can't be equal to C_UDSI_G(c,t,1) seems like

that C_UDSI(c,t,2) is a scalar but C_UDSI_G(c,t,1) is a vector?
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