一种特殊情形下风洞M≥1跨声速均匀流场的建立  

Investigation of the method for gain M≥1 uniform transonic flow field at a special wind tunnel condition

作　　者：罗新福[1] 王发祥[1] 于志松[1] 

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000

出　　处：《流体力学实验与测量》2003年第1期36-38,共3页Experiments and Measurements in Fluid Mechanics

摘　　要：在中国空气动力研究与发展中心高速所FL 24(1.2m×1.2m)跨超声速风洞中,通过采用减小风洞柔壁喷管喉道截面积的方法,成功地在风洞超扩段内装有大堵塞度六自由度机构情形下建立了均匀M≥1跨声速流场。流场校测结果表明,所获得的跨声速流场均匀性指标能满足试验要求,较为成功地解决了FL 24风洞进行跨声速CTS试验的问题,具有实际应用价值。A method of deduce the wind tunnel flexible wall nozzle throat has been used in FL24 wind tunnel to gain the M≥1 uniform transonic flow field with the big percentage blockage captive trajectory supports in the wind tunnel. The results of the flow field calibration show that the uniform transonic flow field was successfully gained and could satisfy the test requirments,then the transonic CTS test can be conducted in FL24 wind tunnel. The investigation is of practical application value.

关 键 词：喷管喉道 堵塞度 跨声速流 风洞试验 跨声速均匀流场 

分 类 号：V211.7[航空宇航科学与技术—航空宇航推进理论与工程]