[johny0688]

Hi All,
I have loaded two cases into CFD-Post. Case1 adiabatic and Case2 diabatic. I want to create new variable for HTC = q/(Tadiabatic - Twall). How to write expression for where q is taken from Case2 diabatic and Tadiabatic from Case 1 adiabatic?

[Lance]

You need to make a reference to the case in the expression.
Example:
areaAve(Velocity u)@CASE:1.Inlet

[johny0688]

Thanks Lance,
But this is not what I'm looking for. The example you gave will show average value. What I want, is to get expression for variable to get local value of HTC. I tried expression like:
(Wall Heat Flux)@Case2/((Temperature)@Case1 - Twall). But it doesn't work. I can import adiabatic results to diabatic as an external data but I want to evaluate HTC in one expression.

[Lance]

Sorry, didnt read carefully. Im not sure you can do it - @Case only works for functions such as area(), ave(), and so on.
But why do you need do to it, if you can solve it by importing external data?

[johny0688]

Originally Posted by Lance

Im not sure you can do it - @Case only works for functions such as area(), ave(), and so on.

Actually I was afraid it is impossible.

Originally Posted by Lance

But why do you need do to it, if you can solve it by importing external data?

I'm trying to make kind of automatic (more or less) tool for HTC evaluating.

I will be looking for different solution
Thanks anyway

[kont87]

Originally Posted by johny0688

Actually I was afraid it is impossible.


I'm trying to make kind of automatic (more or less) tool for HTC evaluating.

I will be looking for different solution
Thanks anyway

Hi,
Were you able to do it? If so, can you explain in short? I believe it is possible in tecplot, but couldnt do it in CFD post.
Thanks.

[Mazze[ITA]]

You have to make a Frozen Copy of Temperature from the first case and then import the second one.