【摘要】 绝缘子表面积污过程的数值模拟研究能为真实环境的积污提供预测，保障电力系统的安全运行。针对目前仿真模拟研究的不足，提出表面粗糙度改变的颗粒沉积模型，通过仿真实现颗粒-壁面碰撞和颗粒-颗粒碰撞阶段的不同线性增长速率，并采用Wen和Kasperd的颗粒悬浮模型修正线性仿真结果。最后与不同风速的风洞试验相比较，结果表明该方法符合绝缘子实际积污特性，能实现积污量的有效预测。更多还原

【Abstract】 The numerical simulation study of the surface area pollution process of insulators can provide a reference for the prediction of pollution accumulation in the real environment and ensure the safe operation of the power system. In view of the shortcomings of current simulation research, a particle deposition model with surface roughness change is proposed. The different linear growth rates of the particle-wall collision and particle-particle collision stages are realized through simulation, and the linear simulation results are corrected by using the particle suspension model of Wen and Kasperd. Finally, compared with the wind tunnel test with different wind speeds, the results show that the proposed method conforms to the actual dirt accumulation characteristics of insulators and can effectively predict the amount of dirt accumulation.更多还原