Why and where should multiphase be used?

Seo, Hyeoncheol

Dear,

This is first time to load a message here. (Wow! Exciting!) I have a very beginner's question, but it is very important.

In the engineering field, we have to have some results that can be used to analyze even under the physically assuming and restriction. CFD could be the typical example for the engineers.

Actually every natural phenomina would be multiphase flows, but usually we have used one phase flow analysis under some physically reasonable assumption.

Nowadys interests about the multiphase application are increasing due to passion to find out the solution of complex problem and hardware development.

But I'd like to know about your opinion what are the current limits of multiphase ENGINEERING application with CFD in respect of physical area and why and where we can use this approach even under the limits?

This is very unclear question but any comments would be appreciated.

Thanks in advance.