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Abstract
Numerical study of coupled heat transfer of gas flow with film cooling, chamber wall conduction, and regeneration coolant cooling in the thrust chamber of a liquid rocket engine was performed. A one-dimensional model was adopted for regeneration cooling to couple two-dimensional model simulation in the thrust camber. Numerical results show that the method adopted can simulate the gas flow field well, and can calculate the heat flux through the wall, the wall temperature, and the temperature increase of the coolant quickly. In addition, liquid film cooling can reduce the wall temperature greatly, and decrease the heat flux transferred from the hot gas to the chamber wall.
The work reported here is supported by the National Natural Science Foundation of China (50476046), the National Science Fund for Distinguished Young Scholars from the National Natural Science Foundation of China (50425620), and the National Key Fundamental Project of R & D of China (2007BC600902).