缝槽气膜中冷却流动特性的最小介入扰动诊断的实验研究检测方案(粒子图像测速)
检测样品 其他
检测项目 冷却流动特性的最小介入扰动诊断的实验研究
关联设备 共3种
北京欧兰科技发展有限公司
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方案详情文
The performance of a propulsion system is directly proportional to its operating
temperature; therefore, an optimum operation regime will undoubtedly generate
intense thermal loads on system components. If the system is designed for reusability
and/or long range missions, it may be necessary to perform active cooling of critical
components to prevent premature failure of the system. One such method is film
cooling, in which a layer of relatively cool gas is injected near the surface to be
protected. This work describes the use of minimally intrusive diagnostics to
characterize the kinematics, thermal dynamics and heat transfer of slot film cooling
flows over a wide range of blowing ratios, generating a comprehensive database for
detailed analysis, as well as for further use by model developers.
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