@inproceedings{0b20b9d1fe1247a7b02004237f10df27,
title = "Investigation for local erosion characteristics in the combustion chamber of dual pulse motor",
abstract = "During the pulse 2 of a dual pulse motor (DPM), severe local insulation erosion usually occurred on its pulse 1 combustion chamber wall. An axis-symmetric and viscous simulation of DPM inner flow has been conducted in order to investigate the erosion characteristics by using CFD software FLUENT. It is revealed that turbulent intensity level increase sharply in the zone of severe insulation erosion which indicates enhancement of heat convection was generated in those spots and caused the erosion. That convection enhancement is related with the reattachment flow in pulse 1 chamber closely which originated form the sudden expansion combustion chamber structure of DPM Based on the new conclusion, contrastive simulations reflect that the variation of design factors, such as motor mass flow rate and shape size of combustion chambers, will affect the intensity and position of erosion zone greatly, which means DPM design factors should be optimized to avoid heavy local erosion. If not, special insulation enhancement would be needed to fix up the dangerous spot of severe erosion.",
keywords = "Dual pulse motor, Erosion, Flow simulation, Insulation, Solid rocket motor",
author = "Yabing Liu and Changhui Wang and Yu Liu",
year = "2010",
language = "英语",
series = "Proceedings of 2010 Asia-Pacific International Symposium on Aerospace Technology, APISAT 2010",
publisher = "Northwestern Polytechnical University",
pages = "1068--1071",
booktitle = "Proceedings of 2010 Asia-Pacific International Symposium on Aerospace Technology, APISAT 2010",
address = "中国",
note = "2010 Asia-Pacific International Symposium on Aerospace Technology, APISAT 2010 ; Conference date: 13-09-2010 Through 15-09-2010",
}