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Turbulence Modeling in Simulation of Gas‐Turbine Flow and Heat Transfer
Author(s) -
BRERETON G.,
SHIH T. IP.
Publication year - 2001
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.2001.tb05842.x
Subject(s) - turbulence , mechanics , curvature , shear flow , shear (geology) , k epsilon turbulence model , simple shear , turbulence modeling , flow (mathematics) , physics , heat transfer , rotation (mathematics) , thermodynamics , shear stress , materials science , mathematics , geometry , composite material
A bstract : The popular k‐ε type two‐equation turbulence models, which are calibrated by experimental data from simple shear flows, are analyzed for their ability to predict flows involving shear and an extra strain ‐ flow with shear and rotation and flow with shear and streamline curvature. The analysis is based on comparisons between model predictions and those from measurements and large‐eddy simulations of homogenous flows involving shear and an extra strain, either from rotation or from streamline curvature. Parameters are identified, which show the conditions under which performance of k‐ε type models can be expected to be poor.