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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.9

ISSN Druckformat: 2152-5102
ISSN Online: 2152-5110

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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v34.i4.20
pages 308-331

Numerical Investigations of Compressible Flow and Energy Separation in a Counter-Flow Vortex

Smith Eiamsa-ard
Department of Mechanical Engineering, Faculty of Engineering, Mahanakorn University of Technology, Bangkok 10530, Thailand
Pongjet Promvonge
Department of Mechanical Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand

ABSTRAKT

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-ε 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-ε model and the ASM, which are the important to design and operation of the vortex tube.


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