采用流动控制的超声速内埋物投放特性研究

doi:10.7527/S1000-6893.2014.0325

流体力学与飞行力学

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采用流动控制的超声速内埋物投放特性研究

郭亮^1,2, 王纯¹, 叶斌¹, 谢云恺², 童明波²

1. 中航工业成都飞机设计研究所, 成都 610091;
2. 南京航空航天大学航空宇航学院, 南京 210016

收稿日期:2014-09-16 修回日期:2014-10-08 出版日期:2015-06-15 发布日期:2015-01-09
通讯作者: 郭亮 Tel.: 028-65033894 E-mail: guoliang@nuaa.edu.cn E-mail:guoliang@nuaa.edu.cn
作者简介:郭亮男,博士研究生,工程师。主要研究方向:飞行器总体设计。 Tel: 028-65033894 E-mail: guoliang@nuaa.edu.cn
基金资助:
国家级项目

Investigation on characteristics of store release from internal bay in supersonic flow under flow control

GUO Liang^1,2, WANG Chun¹, YE Bin¹, XIE Yunkai², TONG Mingbo²

1. AVIC Chengdu Aircraft Design and Research Institute, Chengdu 610091, China;
2. College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Received:2014-09-16 Revised:2014-10-08 Online:2015-06-15 Published:2015-01-09
Supported by:
National Level Project

摘要/Abstract

摘要：

针对马赫数Ma>3飞行状态下的内埋物安全投放难题,提出了两种适用于非平坦舱体外形的超声速内埋物投放分离过程的流动控制方法:第一种方法采用了圆棒扰流器,第二种方法采用气帘喷流。为了验证两种不同流动控制方法的效果,引入结构嵌套六自由度动态网格技术和基于k-ω湍流模型的Navier-Stokes方程计算,对包括重力投放、弹射投放、采用圆棒扰流器的重力投放和采用气帘的重力投放等4种不同的投放分离状态进行了动态全过程的计算对比分析。通过对仿真计算结果分析发现,当来流马赫数Ma_∞>3时,采用流动控制的投放物分离运动特性产生了明显的变化。由投放物下落过程中的俯仰偏航特性可以得出:采用圆棒流动控制有利于安全分离;气帘流动控制具有应用潜力,但采用这种方法需要针对特定的投放条件进行优化,否则可能诱发投放物在俯仰方向的姿态发散。

关键词: 流动控制, 超声速, 内埋舱体, 投放物分离, 数值计算

Abstract:

To solve the problem of safety release of internal bay at supersonic condition (Mach number Ma>3), two methods of flow control which are suitable for supersonic internal bay with a large curvature contour are proposed in this paper. About the two different flow control methods, one uses a rod spoiler, and the other uses a jet screen. In order to verify their effectiveness, comparison and analysis of supersonic store release in four different ways including gravity release, ejection release, gravity release with rod spoiler and gravity release with jet screen is presented through a series of simulation, by using six degrees of freedom moving body by leveraging the overset gridding technique and Navier-Stokes solution based on k-ω turbulence model. Based on the result, dynamic characteristics of store separation with flow control obviously change at free stream Mach number Ma_∞>3. The following conclusions can be reached based on pitch/yaw property during store dropping: the rod spoiler is favorable to safe separation; the jet screen has application potential; however, parameters of jet screen should be designed in optimum according to specific condition, otherwise store may be induced to an attitude divergence in pitch.

Key words: flow control, supersonic, internal bay, store separation, numerical computation

中图分类号:

V221.4

郭亮, 王纯, 叶斌, 谢云恺, 童明波. 采用流动控制的超声速内埋物投放特性研究[J]. 航空学报, 2015, 36(6): 1752-1761.

GUO Liang, WANG Chun, YE Bin, XIE Yunkai, TONG Mingbo. Investigation on characteristics of store release from internal bay in supersonic flow under flow control[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2015, 36(6): 1752-1761.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

采用流动控制的超声速内埋物投放特性研究

Investigation on characteristics of store release from internal bay in supersonic flow under flow control

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