Effects of Radiative Heat Transfer on a Highly Thermal Loaded Film Cooled Plate
A superalloy flat plate with a row of film cooling holes put in hot gas at about 800℃ with the cooling air at about 400℃ was investigated experimentally and numerically. The goal is to understand the effects of radiation in the heat transfer and the interaction between radiation and the other two heat transfer ways. The fluid and solid regions were solved simultaneously. The discrete ordinates method was used to solve the radiative transfer equation for the radiation modeling. The results show that the temperature of the plate increase greatly when the radiation is taken into account and the temperature gradient through the plate becomes much larger. The temperature distribution has been changed and become smoother in spanwise direction. When the blowing ratio increases, the cooling jet lift-off effects on temperature is put off by conjugate heat transfer with radiation taken into account
film cooling radiation blowing ratios heat transfer
Wang Wenping Ren Jing Jiang Hongde
Institute of Power Mechanics and Engineering,Department of Thermal Engineering, Tsinghua University,Beijing, 100084, China
国际会议
The 3rd International Symposium on Jet Propulsion and Power Engineering(第三届喷气推进与动力工程国际会议 ISJPPE)
南京
英文
348-354
2010-09-13（万方平台首次上网日期，不代表论文的发表时间）