基于并联双离心送风机内外流场的数值模拟研究

Numerical Study of the Whole Flow Field of the Double Centrifugal Fan

该文完成了并联双离心送风机两套离心风机及房间内外流场及温度场三维数值计算。在送风机内流场数值仿真基础上,着重分析了典型截面速度场的分布规律。在送风机房间数值仿真基础上,着重分析了制冷与制热工况下房间内速度场及温度场的分布规律。仿真结果对并联双离心风机系统的优化设计及房间内温度分布的主动控制等方面具有重要参考意义。

In this paper, three dimensional numerical calculation of two sets of parallel centrifugal fans and the internal and external flow field and temperature field in the house is completed. Based on the calculation of the innerflow in the double centrifugal fan, the velocity field of the transverse and lengthways sections were farther analyzed.Based on the calculation of the house under refrigeration and heating working conditions, the velocity field and temperature field in the house were farther analyzed. The simulation results are of important significance to the optimal design of the air supply system and the active control to the temperature in the house.