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Journal of Projectiles, Rockets, Missiles and Guidance >

2011 , Vol. 31 >Issue 1: 119 - 122

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2011.01.028

ROCKETS TECHNOLOGY

The Experimental Research on Measurement of Rebound Coefficient for Particle Impacting Charring-layer

  • XU Yihua ,
  • HU Chunbo ,
  • LI Jiang
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  • 1 National Key Laboratory of Combustion, Flow and Thermal-structure, Northwestern Polytechnical University, Xi'an 710072, China
    2 Nanchang Hangkong University, Nanchang 330063, China

Received date: 2010-04-28

  Online published: 2025-05-30

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Abstract

The rebound coefficient of particle impacting charring-layer is one of important parameters for simulation of two-phase flow in the solid rocket motor. The experimental system for measuring rebound coefficient of particle impacting charring-layer was designed and constituted. The experiment of particle with 1.5mm diameter eroding charring-layer and rebounding was carried out at the different incident angle. The normal and tangential rebound coefficients were measured. The cube polynomial of normal and tangential rebound coefficient changing with incident angle were constituted by fitting the experimental data with the norm-Newton optimizing algorithm, which could be served as reference for calculating the force of particle eroding heat insulating material and for simulation of two phase flow in the solid rocket motor.

Key words： particle erosion; ethylene propylene diene monomer; charring-layer; rebound coefficient

Cite this article

XU Yihua , HU Chunbo , LI Jiang . The Experimental Research on Measurement of Rebound Coefficient for Particle Impacting Charring-layer[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2011 , 31(1) : 119 -122 . DOI: 10.15892/j.cnki.djzdxb.2011.01.028

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