三维燃烧移动边界计算网格示踪技术

推进技术 ›› 1993, Vol. 14 ›› Issue (1): 16-21.

三维燃烧移动边界计算网格示踪技术

刘宇,蔡体敏,吴心平,何洪庆

西北工业大学;西北工业大学;西北工业大学;西北工业大学

发布日期:2021-08-15

THE TRACKING TECHNIQUE OF COMPUTATIONAL GRIDS WITH 3-D BURNING AND ABLATING SURFACE

Northwestern Polytechnical University;Northwestern Polytechnical University;Northwestern Polytechnical University;Northwestern Polytechnical University

Published:2021-08-15

摘要/Abstract

摘要： 以任意设计的固体火箭发动机装药几何形状为对象,分析研究了燃面燃烧移动的基本规律,提出了一种三维复杂燃烧移动边界的示踪方法。它可以用于流场计算、发动机性能预示计算和侵蚀燃烧计算中,也可以发展成为一种燃面计算的新方法。文中以假想三维局部翼形装药为例进行了数值计算。

关键词: 固体火箭发动机;推进剂燃烧性能;侵蚀燃烧;燃烧速率;计算

Abstract: Any type grain designed in solid propellant rocket motor (SPRM) is considered in the paper. Based on basic law of burning-surface change, a method is presented to trace 3-D complex burning and ablating Surface. The method can be used in the flow field computation, SPRM performance prediction and erosive-burning computation. And it may also be developed into a new method for calculating burning-surface. As an example,computation of assumed 3-D grain with locally airfoil section was performed.

Key words: Solid rocket engine;Combustion property of propellant;Erosive burning;Burning rate;Computation

刘宇,蔡体敏,吴心平,何洪庆. 三维燃烧移动边界计算网格示踪技术[J]. 推进技术, 1993, 14(1): 16-21.