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problem with defining expression

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Old   December 11, 2018, 21:47
Default problem with defining expression
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Hamda
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Hi,
I want to define the following equation for energy source:
410040 [W m^-3]*((t^-0.0639 )- (35424000+t)^-0.0639)

My problem is that since CFX is so sensitive to dimension I have to rewrite the equation like this:
410040 [W m^-3 s^0.0639]*((t^-0.0639 )- (35424000[s]+t)^-0.0639)
But I still can't run and get error.

It should be mentioned that in the equation, time is considered without dimension. I mean in the equation just the magnitude of time is important.

I got these messages:
In Analysis 'Flow Analysis 1' - Domain 'Solid': Transient analyses require that initial conditions are specified unless an Initial Values file is specified at run-time.
In Analysis 'Flow Analysis 1' - Output Control: No intermediate transient results files have been defined.
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