Comparison of two methods to determine fan performance curves using computational fluid dynamics

8th TSME-International Conference on Mechanical Engineering

Onma, Patinya^1 ; Chantrasmi, Tonkid^1

Department of Mechanical and Aerospace Engineering, King Mongkut's University of Technology North Bangkok, Bangkok

10800, Thailand^1

关键词: Centrifugal fans;    Experiment set-up;    Fan performance;    Numerical approaches;    Performance curve;    Rotational speed;    System loads;    Three dimensional simulations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/297/1/012026/pdf
DOI  :  10.1088/1757-899X/297/1/012026

来源: IOP

【 摘 要 】

This work investigates a systematic numerical approach that employs Computational Fluid Dynamics (CFD) to obtain performance curves of a backward-curved centrifugal fan. Generating the performance curves requires a number of three-dimensional simulations with varying system loads at a fixed rotational speed. Two methods were used and their results compared to experimental data. The first method incrementally changes the mass flow late through the inlet boundary condition while the second method utilizes a series of meshes representing the physical damper blade at various angles. The generated performance curves from both methods are compared with an experiment setup in accordance with the AMCA fan performance testing standard.