Numerical investigations of compressible flow and energy separation in a counter-flow vortex

Eiamsa-Ard, Smith; Promvonge, Pongjet

doi:10.1615/InterJFluidMechRes.v34.i4.20

Numerical investigations of compressible flow and energy separation in a counter-flow vortex

Author(s)

Eiamsa-Ard, Smith

Promvonge, Pongjet

Date Issued

January 1, 2007

Type

Article

DOI

10.1615/InterJFluidMechRes.v34.i4.20

Abstract

This paper presents a numerical modelling of the strongly swirling turbulent compressible flow and temperature/energy separation in a counter-flow vortex tube. A comprehensive two-dimensional vortex tube model is developed which incorporates an algebraic Reynolds stress model (ASM). Computations, based on a finite volume method, were carried out by utilising the k- model and the ASM for the closure of the second-order correlation moments in the governing equations. The modelling of turbulence for compressible, complex flows used in the simulation is discussed. The numerical results for a counter-flow vortex tube describe the detailed characteristics of the axial/tangential velocity, static/total pressure, static/total temperature fields based on the k- model and the ASM, which are the important to design and operation of the vortex tube. © 2007 Begell House, Inc.

Citation

International Journal of Fluid Mechanics Research, 34(4), 308-331, 2007