缝槽气膜冷却流动特性的Z小介入扰动诊断的实验研究

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 coo领 of critical
components to prevent premature failure of the system. One such method is film
coo领, 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 coo领
flows over a wide range of blowing ratios, generating a comprehensive database for
detailed analysis, as well as for further use by model developers. 德国LaVision PIV/PLIF粒子成像测速场仪