HTPB hybrid propulsion with multiple vortical-flow chamber designs

Yen Sen Chen*, Alfred Lai, Jhe Wei Lin, Tzu Hao Chou, Jong-Shinn Wu


研究成果: Conference contribution同行評審

11 引文 斯高帕斯(Scopus)


One main physical feature of hybrid rocket combustion is its diffusion flame nature that has required excessively long combustion chamber which leads to undesirable large slenderness of a rocket configuration. The diffusion flame also results in generally low combustion efficiency of hybrid rockets. Some remedial designs have used liquefying solid grain, such as paraffin, or mixing enhancement mechanisms to boost the overall fuel regression rate and combustion efficiency. Thus, shortened combustion chambers can be used to deliver reasonable thrust performance of hybrid rockets. In the present study, a compact hybrid rocket motor design is investigated to provide a form factor with small slenderness, which is suitable for improving the overall system designs for hybrid rockets. This design concept features in multiple vortical flow structures such that much enhanced combustion efficiency can be obtained. A 3-D computational model with finite-rate chemistry using reduced kinetics mechanism and radiative heat transfer effects are employed in the present investigation to assess the mixing effectiveness and combustion efficiency of the present design. This computational model has been validated for a wide range of rocket propulsion design problems, including single-port hybrid rocket motors with mixing enhancement vortex generator devices. The internal ballistics and flame structure in the present multiple vortical-flow hybrid rocket engine designs using HTPB fuel with nitrous oxide or hydrogen peroxide oxidizers are investigated.

主出版物標題50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference 2014
發行者American Institute of Aeronautics and Astronautics Inc.
出版狀態Published - 2014
事件50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and exhibit 2014 - Cleveland, United States
持續時間: 28 7月 201430 7月 2014


名字50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference 2014


Conference50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and exhibit 2014
國家/地區United States


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