坦克动力舱体温度场数值仿真与实验验证

建立了坦克动力舱体温度场数值计算模型,采用流固耦合的计算方法计算车体壁面的温度场,应用壁面函数法修正处于流场内部的固壁,通过固体和流体双向耦合换热计算,并考虑太阳辐射对车体温度场的影响,得出了车体壁面温度场的分布.并将计算结果与测试结果进行了对比.研究结果表明,动力舱体温度场的计算结果与测试结果的相对误差小于9.034%,所使用的数值计算方法可用于动力舱体温度场的数值计算及分析,基本满足工程设计的需要.

Numerical Simulation and Experimental Validation of Temperature Field of Tank Power Train Compartment Body

A numerical analysis model for calculating the temperature field of a tank power train com- partment is established.A liquid-solid coupling calculating method is used to calculate the temperature field of the tank wall suface and a wall function method is used to modify the internal flow field of the solid wall.Through heat exchange calculation of solid-liquid two-way coupling and consideration of the effect of sun irradiation on body temperature field,the temperature field distribution on the wall surface of the tank body is derived.The calculation result is compared with the measurement result.The research result shows that the relative error between the calculation result and the measurement result is less than 9.034%.This numerical calculation method can be used to calculate and analyze the temperature field of the power train compartment body and can meet the needs of engineering applications basically.