hi,i am coumpute a micro nozzle in fluent. i want to get the coefficnet of dicharge. so i compute inciscid and k-e model, but the result is that the mass flow of inviscid is small than k-e model in lower Re, can anybody tell me where is wrong.

Dear cxzhao:

What is your Re range? It could be from k-e model incompatabilities.

regards

i using laminor to calculate but ,the result is as seem as using k-e,