首页> 外文OA文献 >Numerical Experimental Study to Evaluate the Performance of Universiti Tenaga Nasional Short Duration Hypersonic Test Facility
【2h】

Numerical Experimental Study to Evaluate the Performance of Universiti Tenaga Nasional Short Duration Hypersonic Test Facility

机译:评估Tenaga大学国家短时高超声速测试设备性能的数值和实验研究

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

The work of this paper is aimed to investigate the parameters that affect the performance of a short-duration hypersonic test facility that build at the Universiti Tenaga Nasional "UNITEN" in Malaysia. The facility has been designed, constructed, and commissioned for different values of diaphragm pressure ratios and different gas combinations. The applications and reasoning behind building such a facility are explained. The governing equations for the shock wave are presented. A theoretical model was developed to evaluate the shock wave strength P2/P1 values as a function of diaphragm pressure ratio P4/P1 for different driver/driven gas combinations. A two-dimensional time-accurate time-marching Navier-Stokes solver for shock wave applications is described. It uses second-order accurate cell-vertex finitevolume spatial discretization and fourth order accurate Runge- Kutta temporal integration. Experimental tests for different operating conditions have been accomplished. A high precision pressure transducer and an in house made thermocouple were used to measure the pressure history which represents the shock wave strength P2/P1 and the surface temperature change profile during the facility operation. A MATLAB numerical transient heat transfer model was developed to evaluate the heat flux from the surface temperature change history. The calculated parameters which are pressure, temperature and shock wave velocity, and the CFD results were found to be much matched comparable to the experimental results.
机译:本文的工作旨在研究影响在马来西亚国立大学国立大学“ UNITEN”建立的短期高超音速测试设备性能的参数。该设备已针对膜压力比的不同值和不同的气体组合进行了设计,建造和调试。解释了构建这样的设施的应用和理由。给出了冲击波的控制方程。建立了一个理论模型,以评估冲击波强度P2 / P1值作为膜片压力比P4 / P1随不同驱动器/驱动气体组合而变化的函数。描述了一种用于冲击波应用的二维时间精确的时间行进Navier-Stokes求解器。它使用二阶精确的单元顶点有限体积空间离散化和四阶精确的Runge-Kutta时间积分。已经完成了针对不同操作条件的实验测试。使用高精度压力传感器和内置热电偶来测量压力历史记录,该历史记录表示设施运行期间的冲击波强度P2 / P1和表面温度变化曲线。开发了MATLAB数值瞬态传热模型,以根据表面温度变化历史评估热通量。计算得出的参数是压力,温度和冲击波速度,以及CFD结果与实验结果非常匹配。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利

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