Coupling of RNG k-e and Low Reynolds number k-e

Amaranath

Hi I am working with oil/water two phase flow simulations in pipes. I tried all turbulent models available on GUI in FLUENT. It did not give good results. But I found some other simulations for oil water flow using two turbulent models. Low Renolds number model close to the wall and RNG k-e model in the core. I hope low Re k-e model is good to get correct results when we have very small differnce in viscosity between oil & water. Could you please send me some informations about how to do this using Fluent.

Thanks Amaranath