... Flow in porous media, • Heat exchangers, blower, the radiators and their efficiency, • Two- phase and multiphase flows • Free surface flows with complex surface shapes. Two Phase Flow, Phase ... Two Phase Flow, Phase Change and Numerical Modeling 472 where the Reynolds number is defined by: nf mnfnfvdReρμ= (100) and Prandtl number is : nfnfnfPrυα= (101) and ... Method, McGraw-Hill, New York, U.S.A. Two Phase Flow, Phase Change and Numerical Modeling 470 Particularly, if ε is the energy density of a fluid (Landau&Lifshitz, 1987), ε=e+(p/ρ)+v2/2...