塞式喷管三维流场的数值模拟

戴梧叶; 刘宇; 马彬

塞式喷管三维流场的数值模拟

北京航空航天大学宇航学院

基金项目: 国家863高技术航天领域资助项目(863-2-3-4-10); 高等学校博士学科点专项科研基金资助项目(2000000619)

详细信息

作者简介:
戴梧叶(1974-),男,湖南安化人,博士生,100083,北京.

中图分类号: V 430
计量
- 文章访问数: 2620
- HTML全文浏览量: 140
- PDF下载量: 1076
- 被引次数: 0
出版历程
- 收稿日期: 2001-08-16
- 网络出版日期: 2002-05-31

Numerical Simulation of 3D Aerospike Nozzles

Beijing University of Aeronautics and Astronautics, School of Astronautics

摘要

摘要: 从曲线坐标下的三维平均雷诺的N-S方程出发,并用k-ε两方程湍流模型封闭方程组,采用二阶精度的精度无波动、无自由参数的耗散差分格式(NND格式),发展了模拟塞式喷管三维流场的数值程序,并对线性塞式喷管和瓦状塞式喷管在不同落压比下的三维流场进行了数值模拟研究.结果较好地预示了塞式喷管的三维流场特征,并且显示瓦状塞式喷管除了圆柱形结构比平板更能承载外,其塞锥压强分布可以进一步改善其受力情况.
- 火箭发动机 /
- 三维流动 /
- 计算流体力学 /
- 塞式喷管
Abstract: Based on three-dimensional Reynolds averaged Navier-Stokes equations and low Reynolds number k-ε equations, a numerical program to simulate the 3D flowfield of aerospike nozzle was developed by employing two-order Non-oscillatory and Non-free-parameters Dissipative finite difference scheme. The 3D flowfield of a linear aerospike nozzle and a tile-shaped aerospike nozzle at different flight altitude were predicted. The results indicate that the pressure distribution on the plug of a tile-shaped aerospike nozzle have the advantage of load uniformity, and the cylindrical plug can load more than the planar plug under the same conditions.
- rocket engines /
- three dimensional flow /
- computational fluid mechanics /
- aerospike nozzle

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参考文献(1)

[1] Muss J A, Nguyen T V. Evaluation of altitude compensating nozzle concepts for RLV. AIAA 97-3222, 1997. [2]Hagemann G. Flow phenomena in advanced rocket nozzles—the plug nozzle. AIAA 98-3522, 1998. [3]戴梧叶, 刘宇,马彬,等. 塞式喷管性能的数值模拟与实验验证[J]. 宇航学报,2001,22 (2):39~44. [4]刘宇,张正科,程显辰,等. 气动塞式喷管实验与数值研究[J].北京航空航天大学学报,1999,25 (6):676~679. [5]Onodera T, Tomita T,Tamura H. Numerical investigation of the flow field around linear aerospike nozzles. AIAA 99-2588, 1999. [6]宋明德,张涵信,刘金合. 火箭发动机塞式喷管流场的数值模拟[J]. 推进技术,2000, 21 (5):19~21. [7]李江,郭唐稳,马家欢. 外流干扰对气动塞式喷管性能影响的数值模拟研究[J].宇航学报,2001, 22(2):32~38. [8]戴梧叶, 刘宇, 张正科,等. 塞式喷管流场变化对性能的影响[J]. 宇航学报, 2001, 22(4):14~20. [9]Rommel T, Hagemann G, Schley C A, et al. Plug nozzle flowfield analysis[J].Journal of Propulsion and Power,1997,13(5):629~634. [10] 郭正, 刘君, 瞿章华. 塞式喷管流场的数值模拟[J]. 推进技术,2000, 21 (4):24~26. [11]Lam C K G, Bremhorst K A. Modified form of the k-ε model for predicting wall turbulence[J]. Journal of Fluids Engineering, 1981, 103:456~460. [12]张涵信. 无波动无自由参数耗散差分格式[J]. 空气动力学报, 1988, 6(2):143~165. [13]Gerolymos G A, Vallet I. Implicit computation of three-dimensional compressible Navier-Stokes equations using k-ε closure [J]. AIAA Journal, 1996, 34(7):1321~1330. [14]徐旭. 液体火箭发动机加质大面积比喷管流动计算. 北京:北京航空航天大学动力系,1997. 36~54. [15]Liu Yu, Zhang Guozhou, Dai Wuye, et al. Experimental investigation on aerospike nozzle in different structures and working conditions. AIAA 2001-3704, 2001. [16]李江. 气动塞式喷管气体动力学过程研究和有翼飞行器高超声速动导数的实验测量. 北京:中国科学院力学所,2001.22~46.

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