CAJ | 학술논문

针对固液火箭发动机中的燃烧流动,建立了一种基于流场与固体燃料之间耦合传热和PDF燃烧模型的通用计算模型。应用该模型计算了二维固液实验发动机燃烧室,得到了燃烧室内部的扩散燃烧和燃面退移速率。计算得到的燃面退移速率与实验结果吻合较好,说明该方法对固液火箭发动机内流场计算有较强的通用性,PDF模型可有效模拟混合发动机中的扩散燃烧过程；简化的一维燃面传热耦合方法可应用到多维计算；该模型可用来模拟固液发动机的内弹道和预示退移速率。
침대고액화전발동궤중적연소류동,건립료일충기우류장여고체연료지간우합전열화PDF연소모형적통용계산모형。응용해모형계산료이유고액실험발동궤연소실,득도료연소실내부적확산연소화연면퇴이속솔。계산득도적연면퇴이속솔여실험결과문합교호,설명해방법대고액화전발동궤내류장계산유교강적통용성,PDF모형가유효모의혼합발동궤중적확산연소과정；간화적일유연면전열우합방법가응용도다유계산；해모형가용래모의고액발동궤적내탄도화예시퇴이속솔。
A general calculation model based on thermal coupling at burning face and PDF combustion model was proposed to simulate the flow and combustion in hybrid rocket motor. Two dimensional hybrid rocket motors were simulated by this calculation model and regression rate was obtained.The calculation results agree well with test data,which means the PDF model can simulate the diffusion combustion in hybrid rocket combustor and the simplified one dimensional thermal coupling method at burning surface can be used in multi-dimensional calculations.The calculation model can be widely used in hybrid rocket flowfield simulation and al-so be used to predict the fuel regression rate.