基于二维流场的离心通风器阻力特性的数值模拟

Numerical Simulation of DRAG Characteristics of Central Ventilator Based on Tow-dimensional Flow Field

基于二维流场的计算流体力学,对一种高速离心通风器流场进行研究。计算采用Reynolds应力模型模拟高速离心通风器内强旋流、强湍流特点的流场,对不同通风流量、不同旋转轴转速以及不同辐板形状下的通风阻力进行了计算分析。结果表明,通风流量与旋转轴转速的增加都会提升通风阻力。

Based on the computational fluid dynamics of two-dimensional flow field, a high-speed centrifugal ventilator flow field is studied. The Reynolds stress model was used to simulate the flow field of strong swirling and strong turbulence in high-speed centrifugal ventilators. The ventilation resistances of different ventilation flow, different rotating shaft speeds and different web shapes were calculated and analyzed. The results show that the increase in ventilation flow and the rotational speed of the rotating shaft will increase the ventilation resistance.