GASFLOW中气溶胶再悬浮模型与RnR模型对比研究

Comparative Study between Aerosol Resuspension Model in GASFLOW and RnR Model

以用于RnR模型验证的气溶胶再悬浮试验的设计参数及条件为基础,利用GASFLOW程序构建分析模型进行模拟计算,并与RnR模型的计算结果和试验数据进行对比。研究结果表明:在发生再悬浮的主要阶段,GASFLOW能较好地模拟气溶胶再悬浮行为;在较低气流速度的条件下,RnR模型分析结果更接近试验数据;在较高气流速度的条件下,GASFLOW再悬浮模型分析得出的结果更加保守。为提升计算结果的准确性,建议加入对黏附力概率分布特性的考虑,并进一步研究在GASFLOW中开发RnR模型的可行性。

Based on the design parameters and conditions of the aerosol resuspension test for the validation of the RnR model,an analysis model was built by using GASFLOW code for calculation and simulation,and the results were compared with the calculation results of RnR model and the test data.The study results show that GASFLOW can simulate aerosol resuspension well in the main stage of resuspension.Under the condition of lower air velocity,the analysis results of RnR model are closer to the test data.Under the condition of higher air velocity,the results of GASFLOW model are more conservative.In order to improve the accuracy of the calculation results,it is suggested to consider the probability distribution characteristics of adhesion,and carry out further study on the feasibility of developing RnR model in GASFLOW.