how to write variables and use them in equation

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Sayan Gupta

Sayan Gupta

July 21, 2011 3:52pm UTC

how to write variables and use them in equation

Hello ,
I am new to the working with COMSOL and as such i have a very limited understanding of it. I am currently trying to solve the energy equation where i need to incorporate the value of velocity distribution which has an analytical solution .As there is also a viscous dissipation term i need to calculate gradient of velocity which is not possible analytically.As such i would like to ask if there is anyway i can just analytically express the velocity vector and hence use the gradient term in the equation.

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