Conjugate Heat Transfer Model
 

What would be the approximate size of the mesh for a conjugate heat transfer model of either C3X or Mark-II vane, either structured or unstructured

Will it be in 1.5 lakh or 25 lakh cells?

I have no idea what C3X or Mark-II is. I do not know what lakh is either.

But it is irrelevant - the answer is you must cover the issues discussed here: http://www.cfd-online.com/Wiki/Ansys..._inaccurate.3F