| 细长体大攻角绕流的数值模拟 |
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| 引用本文： | 李锋,周伟江,王强,汪翼云.细长体大攻角绕流的数值模拟[J].航空学报,1994,15(12):1471-1474. |
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| 作者姓名： | 李锋 周伟江 王强 汪翼云 |
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| 作者单位： | 北京空气动力研究所 |
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| 摘 要： | 用数值模拟方法研究了细长体大攻角的绕流特性（求解在周向３６０°范围内进行）。数值模拟的出发方程是三维可压流的全Ｎ－Ｓ方程,格式为二阶迎风ＴＶＤ格式。通过数值模拟研究了附近,攻角１９°、３２．５°和５０°状态下,细长体绕流场中的激波、分离流动及表面压力分布等重要特征。
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| 关 键 词： | 细长体 分离流 数值分析 |
ANUMERICAL SIMRLATION OF VISCOUS FLOW OVER A HEMISPHERE CYLINDER |
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| Li Feng,Zhou Weijiang,Wang Qiang,Wang Yiyun.ANUMERICAL SIMRLATION OF VISCOUS FLOW OVER A HEMISPHERE CYLINDER[J].Acta Aeronautica et Astronautica Sinica,1994,15(12):1471-1474. |
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| Authors: | Li Feng Zhou Weijiang Wang Qiang Wang Yiyun |
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| Institution: | Beijing Institute of Aerodynamcs, Beijing, 100074 |
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| Abstract: | eparated and vortical flow around a hemisphere cylinder is studied by numerical simulation(computational range includes 360 degrees in the circumferential direction around the body).The implicit TVD(total variation diminishing)algorithm is used to solve the foll Navier-Stokes equations.The numerical simulation is performed at angles of atlack up to 50 de-grees under the transonic flow condition,In analyzing the complicated flow structure,some ex-perimental data and topological concepts or simulated oil flow patterns are used to understand the separation better. |
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| Keywords: | slender bodies separated flow numerical analysis |
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