复合推进剂侵蚀燃烧特性的κ-ε参数表征

EXPRESSION OF EROSIVE BURNING CHARACTERISTICS OF COMPOSITE PROPELLANT USING κ-ε PARAMETER

关键词:  侵蚀燃烧  复合推进剂  燃烧试验  性能分析  参数分析

Key words:  Erosive burning  Composite propellant  Combustion test  Performance analysis  Parameter analysis

摘要:

本文从推进剂侵蚀燃烧机理分析出发,综合片型装药发动机中止燃烧试验与相应的燃烧室内流场N-S方程组STMPLE方法数值分析的特点,导出一种由燃面上k~2/ε和p参数表述推行剂侵蚀特性的新方法,并成功地应用于4B丁羟复合药侵蚀特性的研究中.

Abstract:

From the erosive combustion mechanism of solid propellant and combining interrupting burning test of the slab-grain motor with the numerical analysis of the correspondent flow field inside combustion chamber by SIMPLE method,a new method which expresses erosive burning characteristics of solid propellant using the parameters of k2/ε and p on the propellant burning surface was presented. The method was successfully used in the erosive burning study of 4B composite solid propellant,and was comfirmed by experiments.