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Analyses of Heat Transfer in Stationary and Rotating Ribbed Blade Cooling Passages using Computational Fluid Dynamics
Author(s) -
BREWSTER R.A.,
VITHULA S. JONNA
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.tb05881.x
Subject(s) - computational fluid dynamics , turbulence , mechanics , heat transfer , sensitivity (control systems) , turbine blade , blade (archaeology) , materials science , dynamics (music) , fluid dynamics , turbine , physics , thermodynamics , mechanical engineering , engineering , acoustics , electronic engineering
A bstract : Computational fluid dynamics (CFD) predictions of the flow patterns and heat transfer in simplified ribbed‐wall turbine blade cooling passages were performed for representative stationary and rotating conditions. Analyses have been performed with different mesh densities and using different turbulence models to assess the sensitivity of predictions to these variables. Computed local heat transfer results are compared to measurements available in the literature to assess their accuracy. The results generally agree well with experiment, although the peak values of the heat transfer coefficients were under‐predicted in the first leg of the channel. Some sensitivity to mesh density was seen, while the choice of near‐wall turbulence model appeared to have little effect.