• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Shock Waves >Aerodynamic force measurement using 3-component accelerometer force balance system in a hypersonic shock tunnel
【24h】

Aerodynamic force measurement using 3-component accelerometer force balance system in a hypersonic shock tunnel

机译：在超音速冲击隧道中使用三分量加速度计力平衡系统进行空气动力学力测量

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A new three-component accelerometer force balance has been designed, calibrated and tested in hypersonic shock tunnel (HST2) of Indian Institute of Science. The newly designed balance is able to measure aerodynamic forces (within test time of one millisecond) on test models at angles of attack from 0 to 12°. Two models, a blunt cone with after body and a blunt cone with after body and frustum are used to establish the accuracy of the force balance. The tests were conducted for the above two configurations with a constant Mach number of 8 and total enthalpy of 2.0 MJ/kg. The effectiveness of the balance is demonstrated by comparing the forces and moments of measured data with AGARD models. The flow fields around the test model are simulated using a 3D axisymmetric Navier–Stokes solver and the simulated results were compared with the measured values. Measured and computed force data are matched within ±10% for two different models tested here. The accuracy of the force balance is also estimated with the Newtonian theory and the values are approximately ±10% for the axial component and ±8% for the normal and pitching moment components.
机译：已经在印度科学研究所的高超音速冲击隧道（HST2）中设计，校准和测试了一种新型的三分量加速度计力平衡。新设计的天平能够在0到12°的迎角下测量测试模型上的空气动力（在一毫秒的测试时间内）。使用两个模型，带有后身的钝锥和带有后身和平截头体的钝锥来建立力平衡的准确性。对上述两种构型进行了测试，它们的马赫数恒定为8，总焓为2.0 MJ / kg。通过将测量数据的力和力矩与AGARD模型进行比较，可以证明天平的有效性。使用3D轴对称Navier-Stokes求解器对测试模型周围的流场进行仿真，并将仿真结果与测量值进行比较。对于此处测试的两个不同模型，测得的和计算出的力数据匹配在±10％以内。力平衡的精度也可以通过牛顿理论进行估算，其轴向分量约为±10％，法向和俯仰力矩分量约为±8％。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号