[1]鞠玉涛,郑亚,武晓松.弹丸跨声速粘性绕流数值计算[J].南京理工大学学报(自然科学版),1999,(02):21-23.
 Ju Yutao Zheng Ya Wu Xiaosun.Computation of Transonic Viscous Flow of a Projectile[J].Journal of Nanjing University of Science and Technology,1999,(02):21-23.
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弹丸跨声速粘性绕流数值计算()
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
1999年02期
页码:
21-23
栏目:
出版日期:
1999-04-30

文章信息/Info

Title:
Computation of Transonic Viscous Flow of a Projectile
作者:
鞠玉涛郑亚武晓松
南京理工大学机械学院, 南京210094
Author(s):
Ju Yutao Zheng Ya Wu Xiaosun
School of Machanics,NUST,Nanjing210094
关键词:
弹丸 跨音速 流动 数值模拟
Keywords:
projectiles t ransonic flow numerical computat ion
分类号:
O242.1
摘要:
用数值模拟方法研究弹丸跨声速绕流的流动特性,数值模拟的出发方程为平均雷诺数的N-S方程,湍流模型采用Baldwin-Lomax模型,数值格式为四阶的MUSCLTVD格式。通过数值模拟研究弹丸在Ma∞=096状态下,绕流流场的流动特性,给出流场的等马赫数线、等压力线、弹底速度矢量分布及弹体表面压力分布与实验的对比。结果表明,计算符合实际情况,完全满足工程计算的要求
Abstract:
The characterist ics of a project ile flow at transonic speeds are invest ig ated by a numerical method. The governing equat ions are the Rey nolds-averaged N- S equat ions, Baldw in- Lomax model is adopted for turbulence flow . The numerical scheme is fourth order MUSCL TVD scheme , and the characterist ics of a project ile flow is computed at Ma ∞= 0. 96. T he Mach contour , pressure contour , longitudinal surface pressure distribut ion, velocity vectors in the base reg ion are of fered. The result is in good agreement with the actual condition, and sast if ied w ith the requirements of project.

参考文献/References:

1 Chakravarthy S R, Osher S. A new class of hig h accuracy TVD schemes for hyperbo lic conser vation
law s. AIAA 85- 0363, 1985
2 Baldwin B S, Lomax H. Thin layer approximatio n and algebraic model for separated turbulent llow s1AIAA 78- 0257, 1978
3 Sahu J. Numerical computations of transonic cr itical aerodynamic behavior. AIAA J, 1990, 28( 5) :807~ 816
4 Hsu C C. Numerical simulation of transonic turbulent flow past a real projectile. AIAA 88- 0218,1988

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备注/Memo

备注/Memo:
鞠玉涛 男 32 岁 博士生
更新日期/Last Update: 2013-03-29