多翼离心通风机内部流场数值模拟

Numerical Simulation of Internal Flow Field in Multi-blade Centrifugal Fans

运用计算流体力学软件Fluent对多翼离心通风机进行了全三维的内部流场数值模拟。计算采用了SIMPLEC算法和标准的k-ε湍流模型,并对数值模拟的结果进行了分析。计算结果与试验结果的对比表明数值模拟具有较好的准确性和可信度,同时,数值模拟结果有助于了解多翼离心通风机内部流动规律,可为多翼离心通风机的改进设计提供参考。

The software of CFD Fluent is applied in 3-D numerical simulation of internal flow field in multi-blade fans. The method of SIMPLEC and standard k-ε turbulent model are applied in the computation and the numerical simulation results are analyzed. The comparison between numerical simulation results and experimental results demonstrates the better accuracy and reliability of the numerical simulation. In the meantime,the numerical simulation results are very useful for understanding the internal flow pattern in multi-blade centrifugal fans. Besides,it can also give references for improving design of multi-blade centrifugal fans.