The Study Of Numerical Simulation About Temperature Field Of Microbus

Microbus is a kind of vehicle like the car .So one of the microbus' s important performance criterion is the driver and the passenger' s thermal comfortable sense , because it is in connection with the microbus' s initiative safety . But if you want to make the microbus more comfortable you must make the airflow and the temperature field in the microbus more reasonable.Many foreign car factory attach importance to the research in the course of new production design now .But nobody has systcmically researched the problem in china .In this paper , the microbus' s temperature field and velocity field is researched through numerical simulation and experiment for the first time . The mathematics model , physics model and geometrical model for numerical simulation about microbus temperature field is built based on the microbus' s thermal translating and substance translating theory .The method for building geometrical model and boundary condition is put forward .The numerical simulation for microbus SC6350 is accomplished with the computational fluid dynamics(CFD) software of STAR桟D.Consulting the 《The experiment technique of automobile' s heating capability 》 and any other experiment technique on carriage , the microbus' s temperature field experiment technique is systemically established in the condition of no uniform criterion on the microbus' s temperature field experiment at present.The numerical simulation technique and boundary condition putting forward in this paper is very reasonable by compare the numerical simulation result with the experiment result . The variation law of the temperature field and velocity field in themicrobus is concluded by many times of numerical simulation .The air-condition system of the microbus SC6350 is optimized , and the optimized project is very usable to changan Co. Ltd because changan Co. Ltd can use the project to improve it' s microbus air-condition system .It is proved that numerical simulation is a efficiency method for researching the microbus' s temperature field by compare the numerical simulation result with the experiment result. Numerical simulation technique has extensive purpose in the engineering.In this paper , consulting the correlation information and the evaluation criterion about the thermal comfortable sense , the circumstances parameter that satisfy the thermal comfortable sense in the microbus is ascertained .The thermal comfortable sense in the microbus is evaluated using the fuzzy comprehensive evaluation technique for the first time .The thermal comfortable sense in the microbus SC6350 is evaluated with the fuzzy comprehensive evaluation technique too .