混合发动机燃面后退速率模型分析

Models of the Fuel Surface Regression Rate in Hybrid Rocket Motor

燃面后退速率在工作条件改变过程中的变化对混合发动机的设计有很大的影响 ,然而由于理论推导涉及面很广 ,很难得出一个燃面后退速率统一公式。文中总结和分析了不同类型的燃面后退速率实验模型 ,这些模型对于研究燃面后退速率问题有很多的借鉴之处 ,并且还得到了一个燃面后退速率最佳经验公式。此外 ,还对燃面后退速率的数值模拟作了一些阐述。

Of particular importance in the design of hybrid motors is the fuel surface regression rate and the manner in which it varies with operation conditions. The paper summarizes and discusses different types of regression rate models developed by several researchers during previous investigations of hybrid rocket combustion. These analyses are useful in guiding the development of a hybrid rocket motor. And proper empirical correlation form is gained. The paper also discusses the numerical simulation of the regression rate.