Unsteady pressure fluctuations in the boattail region of a heat shield

R. C. Mehta

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Unsteady pressure fluctuations in the boattail region of a heat shield

机译：隔热板的船尾区域中的压力不稳定波动

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Unsteady, turbulent, compressible, axisymmetric, Reynolds-averaged Navier-Stokes equations are solved for the flow pasta bulbous payload shroud for a freestream Mach number of 0.95 and Reynolds number of 16.40×10~6. A time-dependent numerical simulation is carried out using a finite-volume discretization technique in conjunction with a multistage Runge-Kutta time-stepping scheme. The closure of the system of equations is achieved using the Baldwin-Lomax turbulence model

机译：对于自由流马赫数为0.95，雷诺数为16.40×10〜6的流动面食球形有效载荷导流罩，求解了不稳定，湍流，可压缩，轴对称，雷诺平均的Navier-Stokes方程。使用有限体积离散技术结合多级Runge-Kutta时间步长方案，进行了与时间有关的数值模拟。方程组的闭合是使用Baldwin-Lomax湍流模型实现的

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《Aerospace science and technology》 |2000年第2期|p.91-102|共12页
作者
R. C. Mehta;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类航空、航天;
关键词
Reynolds-averaged Navier-Stokes equations; Runge-Kutta time-stepping scheme; boattail region;

机译：雷诺平均Navier-Stokes方程;Runge-Kutta时间步进方案;船尾地区;

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专利

1. A coupled numerical analysis of shield temperatures, heat losses and residual gas pressures in an evacuated super-insulation using thermal and fluid networks Part III: Unsteady-state conditions (evacuation period) [J] . H. Reiss Cryogenics . 2006,第12期

机译：使用热和流体网络对抽空的超绝热层中的盾构温度，热量损失和残余气体压力进行耦合数值分析，第III部分：非稳态条件（抽空时间）
2. A coupled numerical analysis of shield temperatures, heat losses and residual gas pressures in an evacuated super-insulation Part II: Unsteady-state conditions (cool-down period) [J] . H. Reiss Cryogenics . 2006,第12期

机译：抽空的超绝热层中屏蔽温度，热损失和残余气体压力的耦合数值分析第二部分：非稳态条件（冷却时间）
3. Comparative study of surface pressure fluctuations over bulbous heat shields at mach number=0.95 [J] . R. C. Mehta Computers & Fluids . 2001,第6期

机译：马赫数= 0.95时球形隔热罩表面压力波动的比较研究
4. Investigation of unsteady behavior of separated flow in the boattail region of bulbous payload shroud [C] . Mehta, Rakhab C. In: AIAA, Applied Aerodynamics Conference, 16th, Albuquerque, NM, June 15-18, 1998, Technical Papers (A98-32401 08-02), Reston, VA, American Institute of Aeronautics and Astronautics, 1998 . 1998

机译：球形有效载荷围带尾部区域内分离流的非稳态行为研究
5. Relationship between unsteady flow, pressure fluctuations and noise in a centrifugal pump. [D] . Chu, Shilong. 1996

机译：离心泵中的非恒定流量，压力波动和噪声之间的关系。
6. Differential temperature control in heat-integrated pressure-swing distillation for separating azeotropes to deal with operating pressure fluctuations: Basic and explanatory data [O] . Yongchao He, Ye Li, Kaitian Zheng, 2020

机译：热综合压力蒸馏中的差分温度控制用于分离共沸处理工作压力波动：基本和解释性数据
7. Magnetic field and dynamic pressure ULF fluctuations in coronal-mass-ejection-driven sheath regions [O] . Kilpua, E. K. J., Hietala, H., Koskinen, H. E. J., 2013

机译：冠状物质喷射驱动鞘区中的磁场和动压力ULF波动
8. The effect of periodic pressure and temperature fluctuations on unsteady heat transfer in a closed system [R] . Wendland, D. W. 1968

机译：周期性压力和温度波动对封闭系统非定常传热的影响

Unsteady pressure fluctuations in the boattail region of a heat shield

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