| 王东，张佐伊，郝晟淳，汪东，赵展.渐变反推力平面叶栅端壁流动仿真与试验[J].航空发动机,2018,44(1):63-68 |
| 渐变反推力平面叶栅端壁流动仿真与试验 |
| Flow Simulation and Experiment of Gradual Reverse Thrust Plane Cascade Endwall |
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| DOI： |
| 中文关键词: 反推力装置 流动显示 叶栅流动结构 非定常流 表面摩擦力线 航空发动机 |
| 英文关键词:thrust reverser flow visualization cascade flow structure unsteady flow skin friction line aeroengine |
| 基金项目:国防重点科研项目资助 |
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| 中文摘要: |
| 针对某型反推力装置中的渐变反推力平面叶栅，开展了性能预测和流动试验的研究与验证。结合数值仿真和性能试验，
运用表面油流等测量手段，探索了反推力叶栅流线分布和流动的基本结构，揭示由不同弯角组成的反推力叶栅旋涡结构和流动特
征。试验与仿真结果表明：反推力叶栅端壁呈现出3维非定常有旋的流动特征，其发展和演变的过程与涡轮叶栅中的流动过程相
似，依据仿真结果和流道收敛的特征，确立了反推力平面叶栅的基本测量方法，并通过了试验结果的验证，对今后的反推力叶栅数
值仿真和试验工作有很大的借鉴意义 |
| 英文摘要: |
| Research and verification of performance predication and flow test was developed based on the gradual reverse thrust plane
cascade of centain thrust reverser. The streamline distribution and the basic structure of flow for the reverse thrust cascade are investigated
by using surface oil flow measurement method combined with numerical simulation and performance test. Then, the vortex structure and flow
characteristics of the reverse thrust cascade with different bending angles are revealed. Experimental and simulation results show that
reverse thrust cascade endwall exhibit the three-dimensional unsteady swirling flow characteristics, and its development and evolution are
similar to the flow process of turbine cascade. According to the simulation results and the characteristics of channel convergence, the basic
measurement method of reverse thrust plane cascade is established and verified by the test results. It will be of great significance to the
numerical simulation and experimental work of the reverse thrust cascade in the future. |
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