分层空调气流组织的CFD模拟研究

Study on CFD numerical simulation and air distribution of delaminated air-conditioning

使用FLUENT软件,采用经浮力修正的k-ε模型,使用SIMPLE算法进行数值离散,利用CFD方法对某一采用条形送风口的大厅分层空调进行了三维数值模拟.模拟结果表明:条形送风口送风用于分层空调是可行的;大空间采用分层空调气流组织是合理的、节能的,可以节约初投资和运行费用;CFD方法是指导空调设计、预测及优化气流组织等的有效方法.

3 D airflow in a delaminated air-conditioned hall with stripe air outlet was numerically simulated using FLUENT, the commercial computational fluid dynamics （CFD） software. The distribution of temperature and velocity was simulated using the k - ε turbulence model modified by buoyancy. The SIMPLE scheme was used for numerical discretization. The results show that using tripe air outlet is feasible in a delaminated air-conditioning room; it is reasonable and energy-saving for using air distribution of delaminated air-conditioning in a large space building, and it can decrease the initial capital cost and running cost; CFD simulation is also effective for guiding the design of air-conditioning system, prediction and optimization of air distribution.