Abstract: 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.