Separation Characteristics of Embedded Weapons with Flow Control Measures

Abstract

Because of its low resistance and high stealth, the loading mode of the embedded weapon has become the most widely used weapon loading mode. In this article, the method of computational fluid dynamics combined with dynamic grid technique is used to simulate the extravehicular process of an embedded weapon under transonic conditions. The effects of 3 kinds of control measures on the trajectory and posture of the weapon are studied. The results show that the ejection force provides a certain speed and posture for the weapon to overcome the adverse effects of the shearing layer; inclined plate introduces the shear layer airflow outward, reduces the velocity gradient in the shearing layer, and facilitates the weapon out of the bay; the leading edge jet disturbs the shear layer by importing airflow, thereby reducing the impact of the shear layer on the weapon; all three control measures will have a favorable impact on the weapon exit process.