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Mathematical Problems in Engineering
Volume 2013, Article ID 170317, 8 pages
http://dx.doi.org/10.1155/2013/170317
Research Article

Numerical Simulation on the Effect of Turbulence Models on Impingement Cooling of Double Chamber Model

College of Mechanical Science & Engineering, Jilin University, Changchun 130025, China

Received 5 August 2013; Revised 17 October 2013; Accepted 17 October 2013

Academic Editor: Waqar Khan

Copyright © 2013 Zhenglei Yu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Investigation of the effects of impingement cooling for the different turbulence models and study of the aerodynamic behavior of a simplified transition piece model (TP) are the two themes of this paper. A model (double chamber model) of a one-fourth cylinder is designed which could simulate the transition piece structure and performance. The relative strengths and drawbacks of renormalization group theory (RNG), the realizable (RKE), the , the shear stress transport (SST), and large-eddy simulation (LES) models are used to solve the closure problem. The prediction of the inner wall temperature, cooling effectiveness, and velocity magnitude contours in various conditions are compared in five different turbulence models. Surprisingly, the and SST models can produce even better predictions of fluid properties in impinging jet flows. It is recommended as the best compromise between solution speed and accuracy.