CAJ | 학술논문

使用POLYFLOW软件对固体推进剂药浆在捏合机混合釜内的流动过程进行了数值仿真，采用混合釜壁面相对桨叶反方向旋转的方法实现公转，桨叶只需要绕自身轴线白转即可实现行星运动；运用网格叠加技术并结合相应的网格加密技术，完成了复杂边界条件下的网格划分。实现了混合过程巾药浆流动的可视化，量化了捏合机混合过程中釜内各点的速度、剪切应力、粘度、混合指数的分布和极值关系。为复合固体推进剂药浆混合丁艺的安全研究和混合性能的分析提供一定的理论参考。
사용POLYFLOW연건대고체추진제약장재날합궤혼합부내적류동과정진행료수치방진，채용혼합부벽면상대장협반방향선전적방법실현공전，장협지수요요자신축선백전즉가실현행성운동；운용망격첩가기술병결합상응적망격가밀기술，완성료복잡변계조건하적망격화분。실현료혼합과정건약장류동적가시화，양화료날합궤혼합과정중부내각점적속도、전절응력、점도、혼합지수적분포화겁치관계。위복합고체추진제약장혼합정예적안전연구화혼합성능적분석제공일정적이론삼고。
The mixing characteristics of composite solid propellant slurry, stirred in kneading mixers were investigated. POLYFLOW software was employed to solve the problems numerically. Turning the mixing tank instead of the revolution of the blades, thus the planetary motion was carried out only by the autorotation of the blades around their own axes. With mesh superposition technique （MST） and mesh refinement technique, the blades and mixing tank were meshed according to motional characteristics of the blades and the requirement of numerical simulation. Visualization of flow process and flow pattern in stirred vessels was realized. The distribution law and the extremum relation of slurry flow velocity, shear stress, viscosity and mixing index were obtained.