数字海洋与水下攻防2024，Vol.7Issue(3)：326-333,8.DOI:10.19838/j.issn.2096-5753.2024.03.011
高温燃气推进下水下航行器出筒发射数值模拟研究
Numerical Simulation Study on Launch of Underwater Vehicle with High Temperature Gas Propulsion
摘要
Abstract
The process of underwater vehicles exiting the barrel is often accompanied by complex flow of high-temperature and high-speed gas inside the barrel and multiphase mixed flow of water and gas at the barrel mouth,presenting complex flow states and changing patterns,which have important impacts on the launch power,load,and motion attitude of the vehicle after exiting the barrel.This article takes the launch of a certain underwater vehicle as an example and uses CFD method to conduct numerical simulation research on the launch of a high-temperature gas propulsion underwater vehicle.By comparing the horizontal and vertical displacement under different grid densities,the convergence of the numerical simulation in this article is demonstrated.Using a validated numerical model,the process of high-temperature gas propulsion for underwater vehicles exiting the barrel is simulated under different initial launch angles and lateral inflow effects.The deflection angle and velocity of the vehicle after exiting the barrel are obtained,and the typical characteristics of the velocity and temperature fields during the launch process are clarified,providing theoretical guidance for design of underwater thermal launch system.关键词
水下发射/高温燃气射流/计算流体力学Key words
underwater launch/high temperature gas jet/computational fluid dynamics分类
交通工程引用本文复制引用
邬明,张焰宇,孙善春..高温燃气推进下水下航行器出筒发射数值模拟研究[J].数字海洋与水下攻防,2024,7(3):326-333,8.基金项目
科工局基础科研项目"虚实结合的***多学科敏捷设计技术"(JCKY2021206B005). （JCKY2021206B005）
