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expression function for wall Boundary condition by temperature that depend on time

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Old   January 21, 2020, 06:00
Default expression function for wall Boundary condition by temperature that depend on time
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how can i use expression function for wall Boundary condition by temperature that depend on time such as this function:

T=temperature (C)
t=time (s)

T(t)=4t^3+e-2*t

or how can i use this function in UDF

Thanks alot
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