【作者】 申绪兵；

【导师】 刘应清； 杜子学；

【作者基本信息】 西南交通大学 ， 供热、供燃气、通风与空调工程， 2003， 硕士

【摘要】 微型面包车的主要功用是载客，司机和乘客在车室内的热舒适感觉是微型面包车的一个很重要的性能指标，它关系到微型面包车的主动安全性。要提高微型面包车的热舒适性，就需要对室内气流进行合理的组织、使室内的温度场分布合理。国外汽车生产厂商均将该研究作为汽车新产品开发过程中的一项重要工作。而目前在国内尚无人对此课题进行系统的研究。 本文首次采用数值计算和试验相结合的方法对微型面包车车室内温度场、速度场进行了研究。结合微型面包车的传热与传质机理以及SC6350车型，建立了温度场仿真的数学模型、物理模型和几何模型。捉出了合理的微型面包车温度场仿真计算的建模方法和温度场仿真计算的边界条件。并采用计算流体力学(CFD)软件STAR-CD对微型面包车SC6350进行了多种工况的仿真计算。 在微型面包车温度场试验方法尚无统一标准的情况下，参照《汽车采暖性能试验方法》和有关国内外汽车温度场试验方法，根据微型面包车的自身特点，系统地提出了微型面包车温度场试验方法，并在环境舱中进行了微型面包车温度场试验。 通过对计算和试验结果的分析，证明本文提出的计算方法和边界条件是正确的。通过对微型面包车车室内的温度场、速度场变化规律的研究，对微型面包车SC6350的空调系统进行了优化设计，提出了优化方案。该优化方案有较好的实用价值，它为长安技术中心改进微型面包车的空调系统，提高微型面包车的热舒适性提供了理论和技术上的依据。 通过计算和试验结果的对比分析，说明数值计算方法是研究微型面包车温度场的一种有效方法，采用数值计算方法可以比较精确的模拟微型面包车温度场的分布情况。该方法在工程实际中有很好的应用前景。 对于微型面包车的热舒适性评价问题，本文结合国内外的相关资料和有关热舒适性的评价标准，提出了符合重庆市实际情况的微型面包车车室内热舒适环境参数。对于热舒适性的评价方法，本文首次采用模糊综合评价方法评价微型面包车热舒适性，并对微型面包车SC6350的热舒适性进行 西 南交通大学硕士研究生学位论文 第＊页了综合评价。更多还原

【Abstract】 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 .更多还原