带内热源试验厂房温度和气流场模拟研究

机械通风是带内热源厂房常用的主动式设计策略,对于提高建筑环境舒适度和改善室内空气品质等方面具有至关重要的作用,结合工程实际,利用计算流体动力学(简称CFD)方法对机车试验厂房温度和气流场进行了模拟研究,基于SST湍流模型,采用CFX软件进行了计算,提出了通过边界条件的等效处理综合多个计算域为一个计算域的流场分析方法,得到了2种通风方式下厂房内部的温度、速度和矢量分布图,对比分析发现,侧排风机设计方案可以有效抽吸热流,使工作环境满足通风散热要求。

Simulation of Temperature and Air-Flow Field of the Locomotive Test Plant with Inside Heat Source

Mechanical ventilation is a common proactive strategy of factory building with heat source design. It plays a crucial role in enhancing comfort level of building environment and improving indoor air quality. Based on engineering practice, the article uses the method of Computational Fluid Dynamics (CFD) to simulate and research the temperature and air -flow field of locomotive test plant. Based on SST turbulence model, CFX software is used to calculate. A method of integrating several computational domains into a computational domain by using equivalence in the boundary conditions is proposed. And then, we acquire the temperature, velocity and vector map of both ventilation modes inside the factory building by using the method above. Finally, we find that the side wall fan design can pump hot fluid more effectively by comparative analysis and the work environment can meet the requirement of ventilation and heat dissipation.