Comparison of turbulence Methods in CFD Analysis of Compressible Flows in Radial Turbomachines

AuthorsReza Aghaei tog and A. Mesgharpoor Tousi
JournalAircraft Engineering and Aerospace Technology
Presented byAmirkabir University of Technology
Page number657-665
Serial number6
Volume number80
Paper TypeFull Paper
Published At80 06 May/June 2008
Journal GradeScientific - research
Journal TypeTypographic
Journal CountryUnited Kingdom
Journal IndexISI

Abstract

One of the most important issues in CFD is analysis of flow field in turbo machines. Flow in high‐speed radial turbo machinery is a 3D, turbulent and unsteady behavior so needs suitable method for converging. It is clear that the turbulence model has an extraordinary effect on investigation of 3D flows in high‐speed turbo machinery. A centrifugal compressor of micro and radial turbines have been designed and simulated 3D using the commercial CFD‐code FLUENT 6. Three turbulence models kε/standard, renormalization‐group (RNG) and RSM were considered and results of three models were compared with experimental and 1D design results

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tags: Turbulence, 3D design, Fluid dynamics, Turbines, Compressors, Flow