一种适用于大热流推力室的异型冷却通道设计方法

By establishing a mapping relationship between the thrust chamber wall and the computational domain, an adaptive mesh is generated, and the number and shape of cooling channels are optimized. This solves the problem of efficient cooling of the thrust chamber of a reusable rocket engine, achieving a reduction in the temperature of the thrust chamber wall and an improvement in cooling efficiency.

CN117610155BActive Publication Date: 2026-07-17BEIJING INST OF ASTRONAUTICAL SYST ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF ASTRONAUTICAL SYST ENG
Filing Date
2023-11-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies struggle to achieve efficient cooling in the thrust chamber of reusable rocket engines, leading to excessively high wall temperatures and even burn-out problems.

Method used

An irregular cooling channel design method is adopted. By establishing a mapping relationship between the thrust chamber wall and the computational domain, an adaptive mesh is generated to optimize the number, shape and hydraulic diameter of the cooling channels. Combined with the objective function and constraints, the cooling effect is optimized.

Benefits of technology

It effectively reduces the temperature of the thrust chamber wall, improves cooling efficiency, avoids overheating of the wall, optimizes the cooling channel form and hydraulic diameter, and achieves better cooling effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117610155B_ABST
    Figure CN117610155B_ABST
Patent Text Reader

Abstract

本发明涉及一种适用于大热流推力室的异型冷却通道设计方法:在推力室壁面的物理域与计算域之间建立一一映射关系,基于推力室壁面的几何结构,生成推力室壁面势流随形网格;基于推力室壁面势流随形网格,调整势函数ξ曲线、流函数η曲线,得到冷却结构自适应网格;根据冷却结构自适应网格,生成m边形冷却通道,冷却通道的数量N与流函数η曲线的数量相同,冷却通道以冷却结构自适应网格中流函数η曲线为中心线;基于冷却结构自适应网格,计算每条m边形冷却通道内流体的沿程流阻和被冷却的推力室壁面的温度分布;构建目标函数和约束条件,调整冷却通道的数量N、多边形的边数m和每条冷却通道上每个网格节点的水力直径。
Need to check novelty before this filing date? Find Prior Art