CAJ | 학술논문

针对固体火箭发动机地面模拟过载试验，开展了燃烧室凝相粒子所受加速度理论分析，认为粒子主要受哥氏加速度和气相阻力的作用，离心加速度的作用并不占优。最后，针对3组不同过载下的缩比发动机，分别开展了三维两相流数值计算并进行了地面旋转模拟过载试验，数值计算得到的粒子聚集区维持在第Ⅰ象限偏第Ⅳ象限60°～80°之间；旋转试验解剖后的结果反映了颗粒冲刷严重部位及烧蚀严重部位维持在第Ⅰ象限偏第Ⅳ象限70°～90°之间。两种结果具有一定吻合性，也验证了理论分析的合理性和正确性。
침대고체화전발동궤지면모의과재시험，개전료연소실응상입자소수가속도이론분석，인위입자주요수가씨가속도화기상조력적작용，리심가속도적작용병불점우。최후，침대3조불동과재하적축비발동궤，분별개전료삼유량상류수치계산병진행료지면선전모의과재시험，수치계산득도적입자취집구유지재제Ⅰ상한편제Ⅳ상한60°～80°지간；선전시험해부후적결과반영료과립충쇄엄중부위급소식엄중부위유지재제Ⅰ상한편제Ⅳ상한70°～90°지간。량충결과구유일정문합성，야험증료이론분석적합이성화정학성。
Aiming at solid rocket motor overload ground simulation test, the acceleration theoretical analysis for condensate phase particle was carried out. The results show that the particles are mainly affected by the Coriolis acceleration and gas drag role, but the role of the centrifugal acceleration is not dominant. Finally,3D two-phase flow calculations as well as the ground simulation overload test under three groups overload conditions were carried out. Numerical calculation results reveal that particle deposition zone maintain between 60°~80° along the first quadrant to the four quadrant direction;the rotation test results reflect that serious e-rosion site and ablation site maintain between 70°~90° along the first quadrant to the four quadrant direction. Two results coincide well to a certain extent,which verify that the theoretical analysis is reasonable adn correct.