论文部分内容阅读
舱室环境需要保证较高的热舒适性,其通风管道设计较一般房间的管道设计更为严苛.针对实际舱室,参考通风管道设计规范,进行通风管道设计,并利用CFD数值模拟技术对管道内流场、管道沿程阻力以及各风口流量进行分析.依据管道数值模拟的研究,采用标准k-ε湍流模型和QUICK离散方式对通风管道进行数值模拟,结果表明:整个管道流场速度云图和矢量图显示CFD预测较为合理;在使用局部阻力装置后,送风管道管网的不平衡率在15%,以下,回风管道管网的不平衡率在10%,以下,效果较好,各个风口流量基本达到要求;CFD数值模拟可以用来辅助通风管道系统进行风量分配以达到调平的目的.
Compartment environment needs to ensure high thermal comfort, and its ventilation duct design is more stringent than the pipeline design of the general room.For the actual cabin, with reference to the design specifications of ventilation ducts, the design of ventilation ducts, and the use of CFD numerical simulation technology of the pipeline Flow field, the resistance along the pipeline and the flow of each outlet.According to the study of pipeline numerical simulation, the standard k-ε turbulence model and the QUICK discrete method are used to simulate the ventilation duct.The results show that the velocity and velocity Figure shows the CFD prediction is more reasonable; the use of local resistance devices, the supply pipe network imbalance rate of 15%, the following, the return pipe network imbalance rate of 10% or less, the effect is better, the outlet The flow basically meets the requirements. The CFD numerical simulation can be used to assist the air duct system to distribute the air volume in order to achieve leveling.