翼身组合体上的侧向喷流作用特性

研究了一种翼身组合体构型在亚、跨、超声速条件下的几种侧向喷流作用情况。通过在构型的不同部位开设喷口，实验观察了喷口布局、喷流动量比及来流马赫数等对喷流作用的影响。结果表明，马赫数和喷口布局均有显著影响，但本文定义的用来度量相互作用特性的喷流增益因子却基本与动量比无关。此外，对比分析了单独体构型和翼身组合体构型上的作用特性之差异，进一步揭示了主流、喷流在二者相互作用中的地位和影响。本结果对认识侧向喷流干扰特性、开发高效喷流姿态控制技术等有一定参考意义。

On Interaction Features of Side-Jet Issuing from a Missile-Like Wing-Body Configuration

A study is made on gasdynamic interaction features of side-jets/mainstream over a missile-like wing-body configuration at tri-sonic regimes as well as several jet-nozzle geometries. Influences of various factors such as the nozzle configurations,the nozzle momentum-ratios and incoming Mach numbers are experimentally observed on the jet interaction behaviors. Results show that the effects of incoming Mach number and the nozzle geometry are pronounced, while the jet-momentum ratio has little affects on the gain factors used for quantitatively measuring the interactions. Moreover, a comparative analysis is conducted to the gain differences between a bold-body and the wing-body furthermore which depicts the dominating roles in jet/mainstream interactions. It is believed that the study is significant and meaningful for further exploring lateral jet interferences and developing high-effective control manners using lateral jet.