刘绪鹏,刘忠奎,田吉祥,李宏宇,刘国阳.皮托管式静压探针气动性能的CFD 和试验对比研究[J].航空发动机,2019,45(2):43-49
皮托管式静压探针气动性能的CFD 和试验对比研究
CFD and Test Comparison Study on Aerodynamic Performance of Pitot Static Pressure Probe
  
DOI:
中文关键词:  皮托管  静压探针  气动性能  CFD 仿真  风洞试验  航空发动机
英文关键词:pitot tube  static pressure probe  aerodynamic performance  CFD simulation  wind tunnel test  aeroengine
基金项目:航空动力基础研究项目资助
作者单位E-mail
刘绪鹏,刘忠奎,田吉祥,李宏宇,刘国阳 中国航发沈阳发动机研究所沈阳110015 goodbf82@126.com 
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中文摘要:
      针对1 种用于航空发动机内流道静压测量的皮托管式静压探针,通过CFD 仿真计算和风洞试验对其气动性能进行对比 研究。结果表明:来流速度在Ma=0.3~0.7 范围内,CFD 计算结果和试验结果有较高的一致性;探头上的压力系数在不同Ma 下具有 相同的分布规律,压力最大值出现在探头前端,最小值出现在约x1/L=0.07 处;随着Ma 升高,支杆上的附面层分离点前移并导致探 头上的压力系数略有增大;试验结果还表明,在x1/L=0.1 处开感压孔能够获得较高的测试精度。
英文摘要:
      Abstract: The aerodynamic performance of a pitot static pressure probe used in aeroengine hydrostatic pressure measurement of internal channel was contrasted and studied by CFD simulation and wind tunnel test. The results show that when the velocity of incoming flow is in the range of Ma=0.3~0.7,the calculated results of CFD are in good agreement with the test results. The pressure coefficient on the probe has the same distribution law under different Ma. The maximum pressure appears at the front of the probe and the minimum at about x1/L=0.07. With the increase of Ma,the separation point of boundary layer on the support rod moves forward and the pressure coefficient on the probe increases slightly. The test results also show that the high test precision can be obtained by opening the sensitive pressure-hole at x1/L=0.1.
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