动力舱排烟管引射口外形结构优化研究

Study on Optimization of Injection Port Configuration of Exhaust Pipe in Power Cabin

以某车辆动力舱热流场为研究对象,使用虚拟仿真技术对动力舱结构和内流场进行建模,计算车辆本身引射口的流场分布,通过改变引射口的长度和扩散角度改善舱内的温度环境。分别对比原长度和原角度与优化后长度和角度的流场分布云图,综合分析这些计算结果,获得合适的结构优化结果。最终实现降低舱内工作温度、优化舱内流场的目标,为车辆动力舱的设计奠定了一定的基础。

The heat flow field of a vehicle power cabin was studied, the dynamic cabin structure and internal flow field were modeled using virtual simulation technology. The flow field distribution of the injection port of the vehicle was calculated.The temperature environment in the cabin was improved by changing the length and diffusion angle of the injection port.The flow field distribution nephograms of the original length and original angle and the optimized length and optimized angle were compared respectively.The results of these calculations were analyzed comprehensively, and the appropriate structural optimization results were obtained.Finally, the goal of reducing the working temperature and optimizing the flow field in the cabin is realized, which lays a certain foundation for the design of the vehicle power cabin.