Can similarity criterion help reducing calculations in Finite Element Analysis (FEA) problems?
I'm using NX (a thermal and CFD simulation software) to simulate the temperature and fluid field of a LED application.
It takes a long time each time i change something. I'm wondering if I can reduce the calculations by scaling down the object I'm calculating.
For example, if cooling solution A is best for an application of size 10. Is the cooling solution A also the best if I scale down the application to size 5?
If this is true, then i can base my calculations on size 5 and reduce drastically the time of calculation.
I believe this is not so simple. For example heat pipes behave differently with different lengths.
But maybe with some corrective parameters, this can be done. Any advices ?
(I realize that this might not be the place to ask this question, please also advice where i can post this question)