Modern Defense Technology ›› 2026, Vol. 54 ›› Issue (4): 70-80.DOI: 10.3969/j.issn.1009-086x.2026.04.007

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Study on Influence of Flight Conditions on Coupling Interference Flow Field of Attitude and Divert Jets

Shuai SU, Ning Cao, Baoxue LIU, Peng PENG, Mingran DONG   

  1. China Academy of Aerospace Aerodynamics,Beijing 100074,China
  • Received:2025-06-20 Revised:2025-07-17 Online:2026-08-28 Published:2026-09-01

飞行条件对姿轨控耦合干扰流场的影响研究

苏帅, 曹宁, 刘保学, 彭鹏, 董明然   

  1. 中国航天空气动力技术研究院,北京 100074
  • 作者简介:苏帅(1999-),男,内蒙古鄂尔多斯人。助工,硕士,研究方向为喷流控制与复杂流动。

Abstract:

The reaction control system is less affected by the aerodynamic environment, can stably provide a large overload in a large airspace, and significantly improves maneuverability, making it an effective way to improve the maneuvering performance of aircraft. For the advanced interceptor technology (AIT)-like cone-column-skirt shape, this paper studied the flow characteristics of the coupling interference of attitude and divert jets under typical flight conditions using the numerical simulation method of computational fluid dynamics and analyzed the variation laws of the characteristic parameters of the coupling interference flow field of attitude and divert jets (bow shock height, separation distance, length of low-pressure area, and separation circumferential angle) with flight altitude, Mach number, and angle of attack. The results indicate that the variations of the characteristic parameters of the coupling interference flow field of attitude and divert jets with flight conditions are different, and the variation with flight altitude is particularly obvious; under the condition of the same flight altitude, the variation laws of the characteristic parameters of the divert jet flow field with Mach number and angle of attack are similar; influenced by the divert jet, the variation laws of the characteristic parameters of the attitude jet flow field with flight conditions are more complex.

Key words: complex flow, attitude and divert jet, jet interference, flow field characteristic, numerical simulation

摘要:

反作用控制系统受气动环境影响小,可在大空域范围内稳定提供大过载,大幅提升机动能力,是一种有效提高飞行器机动性能的方式。针对类AIT(advanced interceptor technology, 先进拦截技术)的锥柱裙外形,采用计算流体力学数值模拟方法,开展了典型飞行条件下姿轨控喷流耦合干扰流动特性的研究,分析了姿轨控耦合干扰流场特征参数(弓形激波高度、分离距离、低压区长度、分离周向角)随飞行高度、马赫数、攻角的变化规律。研究结果表明:姿轨控耦合干扰流场的特征参数随飞行条件的变化存在差异,且随飞行高度的变化尤为明显;相同飞行高度条件下,轨控流场特征参数随马赫数、攻角的变化规律相近;受轨控喷流的影响,姿控流场特征参数随飞行条件的变化规律更为复杂。

关键词: 复杂流动, 姿轨控喷流, 喷流干扰, 流场特性, 数值模拟

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