Research on CFD Steady-State Simulation Analysis and Optimization for Defrosting of Passenger Vehicles

摘要

Based on the analysis of defrosting simulation and test of existing models, a method for predicting defrosting time and defrosting effect using steady state analysis was found, and applied to the project development of new vehicles, and the defrosting scheme optimization speed is improved. At the same time, this analysis also optimizes the defrosting air impact point position and wind speed distribution on the new vehicle. Specific conclusions are as follows: (1) Determine the relationship between the coverage area of the target wind speed in the steady-state analysis and the transient defrosting time and establish the model setting and evaluation standard; (2) Application of steady-state defrosting analysis model, to optimize defrosting duct and outlet of the new vehicle; the optimization speed of defrosting scheme has been improved by 50%, and the cost of manpower and computing resources has been shortened and forms a complete set of simulation analysis process; (3) Through the analysis, pointed out the shortcomings of the original vehicle defrosting performance, and these problems are optimized in this model analysis, the defrosting performance of this model is improved.