Simulation study on flow and response temperature of armored vehicle in low temperature environment test

Abstract

In this paper, three-dimensional CFD simulation and vehicle’s environmental test were combined, according to the size and operating parameters of the actual environmental test chamber, a model of the low-temperature environmental test chamber was constructed by using 3D modeling software; by removing the structure that has little influence on the process of environmental experiment, a three-dimensional vehicle model suitable for simulation calculation is built, and by means of 3D model assembly, the combination of vehicle and environmental chamber model is realized. According to the low temperature environment test conditions, CFD numerical simulation method was used to analyze the flow velocity distribution in the test chamber and the response trend of each chamber to the low temperature environment, the results were also compared with the experimental data of low temperature environment, which provides a theoretical basis for carrying out simulation and prediction research based on digital environment test.