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요약정보
微型拉瓦尔喷管的流体仿真分析和优化 / FLUID SIMULATING ANALYSIS AND OPTIMIZATION OF MICRO LAVAL NOZZLE
Resource Type
Academic Journal
Authors
喻巍岭
;
冯煜东
;
周晖
;
曹生珠
;
张晓宇
;
YU Wei-ling
;
FENG Yu-dong
;
ZHOU Hui
;
CAO Sheng-zhu
;
ZHANG Xiao-yu
Source
真空与低温 / Vacuum and Cryogenics
. 24(4):246-250
Subject
液化气微推进系统
拉瓦尔喷管
流体仿真
有效比冲
尺寸优化
Language
Chinese
ISSN
1006-7086
Online Access
Find it @ DONGA
초록
采用Fluent软件对微型模块化液化气微推进系统的拉瓦尔喷管进行了流体仿真,得到了喷管各个尺寸因素对有效比冲和推力的影响曲线关系,并给出了喷管的最终优化结果.喷管有五个尺寸因素:入口直径、喉部直径、出口直径、收缩段长度和扩张段长度.其中,喉部直径越大,推力越大,有效比冲越小;出口直径越大,推力和有效比冲越大;收缩段长度较小时,对有效比冲影响较大,对推力几乎无影响;入口直径和扩张段长度对推力和有效比冲的影响很小可忽略.
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