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弹箭与制导学报 >

2015 , Vol. 35 >Issue 6: 145 - 148

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2015.06.037

相关技术

五种颗粒平均直径计算方法模拟研究

  • 刘仔 ,
  • 李艳臣
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  • 1 哈尔滨工程大学航天与建筑工程学院, 哈尔滨 150001
    2 上海卫星装备研究所, 上海 200240

刘仔(1991-),男,四川邻水人,学士,研究方向:固体火箭发动机内的流动、传热与燃烧。

收稿日期: 2014-07-11

  网络出版日期: 2025-05-28

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Simulation Research of Five Average Particle Diameter Calculation Methods

  • LIU Zai ,
  • LI Yanchen
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  • 1 College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China
    2 Shanghai Institute of Spacecraft Equipment, Shanghai 200240, China

Received date: 2014-07-11

  Online published: 2025-05-28

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摘要

为了确定更加合理的颗粒平均直径计算方法,文中分别模拟研究了多尺寸分布与单尺寸分布的发动机内流场与性能参数的差异。采用高雷诺数条件下的k-ε湍流模型与颗粒轨道模型进行数值模拟。模拟结果表明,5种颗粒平均直径计算方法得到的单尺寸分布的计算结果与多尺寸分布的计算结果均存在偏差。采用质量平均法与体积表面积平均法求解颗粒平均直径较好,而线性平均法不宜采用。

关键词： 颗粒轨道模型; 质量平均法; 体积表面积平均法; 线性平均法

本文引用格式

刘仔 , 李艳臣 . 五种颗粒平均直径计算方法模拟研究[J]. 弹箭与制导学报, 2015 , 35(6) : 145 -148 . DOI: 10.15892/j.cnki.djzdxb.2015.06.037

Abstract

To determine more reasonable calculation method for average particle diameter, the differences of internal flow field and performance of solid rocket motor in multi-size and single-size distribution conditions were separately simulated. Numerical simulation using ke turbulence under high Reynolds number and particle trajectory model was introduced. It shows that the results calculated by multi-size distribution are different from that of single size distribution obtained through five calculation methods for average particle diameter. Mass average method and averaging method in volume and surface area are better to calculate particle average diameter, while linear average method should not be used.

Key words： particle trajectory model; mass average method; averaging method in volume and surface area; linear average method

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