Numerical simulation on a hybrid rocket engine with diaphragms(PDF)
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
- Issue:
- 2010年06期
- Page:
- 21-24
- Research Field:
- 研究与设计
- Publishing date:
Info
- Title:
- Numerical simulation on a hybrid rocket engine with diaphragms
- Author(s):
- XU Meng; TIAN Hui
- School of Astronautics, Beijing Univ. of Aeronautics and Astronautics, Beijing 100083, China
- Keywords:
- hybrid rocket engine; diaphragm; numerical simulation; combustion efficiency
- PACS:
- V436-34
- DOI:
- -
- Abstract:
- To improve the combustion efficiency of hybrid rocket engine, numerical simulation of the flow field through a thruster with diaphragms is conducted with FLUENT software. The results of numerical simulation show that in pure gas phase reaction conditions the hybrid rocket engine with diaphragms can improve combustion efficiency, but the improvement is limited. The uneven temperature distribution at the entrance of the nozzle can not be changed. The diaphragms in the post thruster can significantly increase the average temperature at the entrance of the nozzle. And the temperature distribution is uniform. Adding diaphragms in the solid grain can change the flame position. Due to the relatively fixed position of the flame layer, the temperature distribution at the entrance of the nozzle can maintain a relatively stable situation.
Last Update: 1900-01-01