基于多块对接网格的多侧喷流瞬态干扰特性研究  

Research on transient interaction characteristics of multi-lateral jet based on multi-block butt-joint grids

作　　者：乔阳[1] 刘勇[1] 徐敏[1] 陈刚[1] 

机构地区：[1]西北工业大学航天学院,西安710072

出　　处：《固体火箭技术》2007年第2期98-101,119,共5页Journal of Solid Rocket Technology

基　　金：863基金和航天创新基金

摘　　要：基于无限插值理论和多块网格技术,生成了带多姿控发动机的拦截弹结构体网格。利用非定常N-S方程数值求解技术,计算了大气层内高超音速拦截弹带多个横向喷流的瞬态干扰流场,为拦截弹瞬态多侧向喷流的精确控制力建模提供了理论参考依据。研究结果表明,与单喷瞬态干扰相比,瞬态多侧向喷流干扰延迟效应更明显;多侧喷瞬态喷流尾流对尾翼存在更强干扰现象。Based on infinite interpolation theory and multi-block grid technique, construction grid of interceptor missile with multiple attitude control motors was generated. Transient interaction flow field of the multi-lateral jet hypersonic interceptor in the aerosphere was calculated by means of unsteady Navier-Stokes equations. The calculation results can provide theoretical reference to building precise control force model of the multi-lateral jet interceptor. Compared with transient interaction of single jet, the delay effect of transient interaction for multi-lateral jet interceptor is much more obvious; interaction effect of transient multi-lateral jet flow on tail is more serious.

关 键 词：拦截弹 多侧向喷流 瞬态干扰 多块对接网格 

分 类 号：V430[航空宇航科学与技术—航空宇航推进理论与工程]