Spray Combustion & Propulsion Laboratory

                      

The Spray Combustion and Propulsion Laboratory (SCPL), affliated to School of Aerospace Engineering in Tsinghua University, conducts research on spray combustion under extreme conditions, combustion instabilities in engines, detonative propulsion, and new concept propulsion, etc. The research aims to provide highly effcient and stable energy conversion for the engine. Recently, the SCPL has undertaken several national key projects from National Natural Science Foundation of China, and Ministry of Science and Technology China, etc, and great great achievements have been made in both academic and engineering applications.The lab contains a good exchange and scientifc cooperation with the oversea universities, such as the University of Michigan, Warsaw University of Technology, etc., and with the domestic industrials. At present, with the unity of teachers and students, comfortable scientific research environment, powerful computing and experimental platform, rich accumulation of research experience, sufficient funding support and good cooperative relationship with the famous international universities and scholars, the SCPL hopes to play an increasingly important role in the field of propulsion.




 

超声速、高瞬变极端条件两相流动与喷雾燃烧

针对强可压缩两相流动的数值模拟,基于准守恒输运界面捕捉耦合广义刚性状态方程,发展了强可压缩两相流动统一计算模型;基于经典成核理论发展了异质成核数值模型,用于快速相变过程的模拟;提出了适应性(WENO-IS)变模板点的高精度格式。实现了:

1)激波与液滴作用全过程数值模拟,改进发展了超声速喷雾的传质模型;

2)解释了激波作用的液滴内部膨胀波聚焦导致的局部空化机理;

3)探讨了界面/激波生成、相互作用及消失过程的规律 。

针对高瞬变的撞击雾化与燃烧过程提出了:撞击波强化雾化的协同机制、局部燃料液滴弱供给/强剪切两种的熄火机制;

实现了:变推力液体火箭发动机燃烧室复杂工作全过程的数值仿真,并给出了发动机变推力工作的特性与参数影响规律。

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