IGTC-110 Flow Simulation in an Aerodynamic Diffuser of a High Loaded Radial Compressor Using Different Turbulence Models(Organized Session I ADVANCED COMPUTATIONAL SIMULATION AND DESIGN)

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概要

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• A two- and three-dimensional code solving the Reynolds-averaged compressible Navier-Stokes equations has been developed and successfully used for computation of the steady flow field in an aerodynamic diffuser of a high loaded centrifugal compressor. For the purpose of comparison the turbulence model of Baldwin and Lomax with and without an extension of Goldberg and Chakravarthy [1] for the determination of separated flow regions and the two equation κ-ε model according to Kunz and Lakshminarayana [2, 3] are applied to compute the flow field of the diffuser on several operating points with the two-dimensional code. The three-dimensional solver in addition with the extended and unextended Baldwin-Lomax model has been applied to ascertain the three-dimensional flow field on the working point with the largest separation zone in the two-dimensional case. For comparison measured pressure distributions [4] of the examined operating points are presented likewise.

• 公益社団法人日本ガスタービン学会の論文

著者

• Heinrich M.

  Institute For Mechanics University Of Hannover

• Teipel I.

  Institute for Mechanics, University of Hannover

関連論文

• IGTC-110 Flow Simulation in an Aerodynamic Diffuser of a High Loaded Radial Compressor Using Different Turbulence Models(Organized Session I ADVANCED COMPUTATIONAL SIMULATION AND DESIGN)

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