Compressible Two-Phase Boundary-Layer Flow with Finite Particulate Volume Fraction

Abstract

Abstn~--A continuum athematical model governing compressible boundary-layer fluid-particle flow and heat transfer over a semi-infinite flat plate is developed. This model is based on separate balance laws of mass, linear momentum, and energy for both phases and allows for finite particle-phase volume fraction and viscous tresses. It is found that the volume fraction of suspended particles and, therefore, the particle-phase d nsity is uniform in the boundary layer. Using this fact, the governing nonlinear partial differential equations are simplified and solved numerically b an iterative finite-difference m thod. Graphical results for flow and heat ransfer properties are presented for various values of the particle-fluid viscosity ratio and the power index parameter for the viscosity-temperature relation. Copyright C) 1996 Elsevier Science Ltd. 1