Novel Shaped Sweeping Jet for Improved Film Cooling and Anti-Deposition Performance  

作　　者：ZHOU Wenwu WANG Kechen ZHANG Tianluan WEN Xin PENG Di LIU Yingzheng 

机构地区：[1]Key Lab of Education Ministry for Power Machinery and Engineering,School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China [2]Gas Turbine Research Institute,Shanghai Jiao Tong University,Shanghai 200240,China

出　　处：《Journal of Thermal Science》2024年第6期2089-2096,共8页热科学学报（英文版）

基　　金：the financial support for this study from the National Natural Science Foundation of China(Nos.52276033 and 92052107).

摘　　要：The present study proposed a shaped sweeping jet(SJ)that possesses the merits of both SJ and shaped hole,which demonstrates significantly improved cooling effectiveness and anti-deposition performance.Compared to a classical 777 shaped hole,the shaped SJ exhibits a maximum enhancement of 70%in cooling effectiveness and a maximum reduction of 28%in particle deposition height,respectively.Owing to the periodic oscillation of coolant jet and higher streamwise jet momentum,the shaped SJ can provide much wider coolant coverage and therefore sweep the adhesive particle away from the wall.This study is the first attempt to reconcile the performance of film cooling and particle anti-deposition simultaneously,which offers a promising design concept for future engine cooling.

关 键 词：sweeping jet film cooling particle deposition pressure sensitive paint multi-perspective scanni 

分 类 号：V263[航空宇航科学与技术—航空宇航制造工程]