fluent多相流DPM模型中使用用户自定义函数对颗粒进行统计-DPM fluent multiphase flow model using user-defined functions for particle statistics

用于计算气固液三相流，基于OpenFOAM计算流体力学框架开发(For the calculation of gas solid liquid three phase flow, based on OpenFOAM computational fluid dynamics framework development)

用于计算粒子轨迹积分后的辐射剂量,需要导入fluent计算出的粒子运动历史和光照强度，分别由DPM模型和radiation模型得出(this code is used to calculate UV dose of water disinfection reactor)