Paper Title:

Numerical Study on Flow and Heat Transfer Characteristics of Jet Impingement Cooling

Periodical Applied Mechanics and Materials (Volumes 148 - 149)
Main Theme Mechanical Engineering, Materials and Energy
Edited by Grace Chang
Pages 680-683
DOI 10.4028/www.scientific.net/AMM.148-149.680
Citation Run Peng Sun et al., 2011, Applied Mechanics and Materials, 148-149, 680
Online since December, 2011
Authors Run Peng Sun, Wei Bing Zhu, Hong Chen, Chang Jiang Chen
Keywords Heat Transfer, Impingement Distance, Initial Cross-Flow, Jet Impingement
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Abstract

Three-dimensional numerical study is conducted to investigate the heat transfer characteristics for the flow impingement cooling in the narrow passage based on cooling technology of turbine blade.The effects of the jet Reynolds number, impingement distance and initial cross-flow on heat transfer characteristic are investigated.Results show that when other parameters remain unchanged local heat transfer coefficient increases with increase of jet Reynolds number;overall heat transfer effect is reduced by initial cross-flow;there is an optimal distance to the best effect of heat transfer.