Investigation of convection cooling guide vane with conjugate heat transfer method
ChenKai, HUANG Hong-yan, HAN Wan-jin, FENG Guo-tai
School of Power and Engineering,Harbin Institute of Technology,Harbin 150001,China
Abstract:
This paper studied a certain blade with ten radial cooling holes which employed conjugate heat transfer method. The cooling air entered the cooling channel from the bottom of the blade and went out from the top, it was not ejected into the main flow. This paper used different numerical conditions including different turbulence models,turbulence intensities,thermal conduction coefficients and the influence on fluid property via temperature variation. The temperature distribution and pressure distribution of the blade were compared with experimental data. The results show that the numerical results using different turbulence models are almost identical to experimental data even little deviation occurs at shock wave location. The trends of temperature distribution under different numerical conditions are coincident to experimental data,especially Reynolds stress turbulence model. It can be concluded that anisotropic turbulence models can simulate the transition from laminar to turbulence,and the influence of turbulence intensity on laminar region and transition region is more than that on developed turbulent region.
Key words: conjugate heat transfer air cooling turbine convection cooling numerical simulation
DOI:10.11916/j.issn.1005-9113.2010.04.003
Clc Number:TK124
Fund:
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Investigation of convection cooling guide vane with conjugate heat transfer method
本站小编 哈尔滨工业大学/2019-10-23
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