枪管后坐力炮炮口减压装置流场的数值研究

IF 1.2 4区工程技术 Q3 ACOUSTICS

Shock and Vibration Pub Date : 2024-03-22 DOI:10.1155/2024/9235312

Zilong Liu, Jinsong Dai, Shengye Lin, Dong Zhou, Maosen Wang, Haifeng Wang

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引用次数: 0

摘要

采用结构化动态重叠网格和用户自定义函数研究弹丸发射过程，采用混合 Roe 方案求解强冲击波流场。利用三维瞬态模型对带有枪口减压装置的弹丸发射过程进行了数值模拟，详细讨论了弹丸发射过程中枪口减压装置内的流场和枪口流场的发展过程。与无装置相比，枪口减压装置可有效降低枪口周围的峰值压力；数值结果与相应的实验值一致。本文的数值研究有助于理解该装置的减压机理。同时也为降低航炮炮口压力提供了一种新的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Numerical Investigation on the Flow Field of Muzzle Decompression Device for the Barrel Recoil Gun

A structured dynamic overlapping grid and a user-defined function are used to study the projectile launching process, and the hybrid Roe scheme is used to solve the flow field with strong shock wave. The launching process of a projectile with a muzzle decompression device is numerically simulated by using a three-dimensional transient model, and the flow field inside the muzzle decompression device and the development process of the muzzle flow field in the projectile launching process are discussed in detail. Compared with no device, the muzzle decompression device can effectively reduce the peak pressure around the muzzle; the numerical results are in agreement with the corresponding experimental values. The numerical investigation in this paper is helpful to understand the mechanism of pressure reduction of the device. It also provides a new way to reduce the muzzle pressure of aircraft gun.

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来源期刊

Shock and Vibration 物理-工程：机械

CiteScore

3.40

自引率

6.20%

发文量

384

审稿时长

3 months

期刊介绍： Shock and Vibration publishes papers on all aspects of shock and vibration, especially in relation to civil, mechanical and aerospace engineering applications, as well as transport, materials and geoscience. Papers may be theoretical or experimental, and either fundamental or highly applied.