Feng Jin
Associate Professor
Alma Mater:东南大学
Education Level:东南大学
Degree:Doctoral Degree in Engineering
School/Department:College of Energy and Power Engineering
Discipline:Engineering Thermophysics. Aerospace Propulsion Theory and Engineering
Business Address:A10-427
Contact Information:13851629649
E-Mail:
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Affiliation of Author(s):能源与动力学院
Journal:火箭推进
Key Words:预冷器;超临界氦气;平均换热系数;总压损失;
Abstract:为了掌握吸气式火箭发动机(SABRE)空气预冷器的流动换热特性,为设计相应类型的预冷器提供技术基础,针对SABRE预冷器最小周期性单元,以数值方法研究了管间距、管排数、空气入射角度及氦气/空气热容量比对预冷器流动换热的影响。研究结果表明:增大管排数和减小管间距,能够增大预冷器换热功率,降低空气出口温度,但会降低空气侧、氦气侧平均换热系数,减弱对流换热能力,增大空气侧总压损失。空气入射角度对空气侧、氦气侧换热影响微小,但对空气侧总压恢复系数影响显著。增大氦气/空气热容量比能够降低空气侧总压损失,增大空气侧、氦气侧平均换热系数,降低空气出口温度。
ISSN No.:1672-9374
Translation or Not:no
Date of Publication:2019-10-15
Co-author:魏鑫,刘天依,jhh
Correspondence Author:Feng Jin
