Numerical Simulation and Experiment Research on Aerodynamic Characteristics of a Multi-Blade Centrifugal Fan

Yong Chao Zhang; Qing Guang Chen; Yong Jian Zhang; Xiang Xing Jia

doi:10.4028/www.scientific.net/AMR.317-319.2157

Paper Titles

Synchronous Rectification Strategy for LLC Resonant DC-DC Converter
p.2138

Study of Material Motion Law in Horizontal Circling Vibrating Dryer
p.2144

Numerical Simulation Analysis of Centrifugal Pump Floating Ring Seal
p.2148

Digital Lensless Fourier Holography with Optical Fiber and Reduction of Speckle Noise
p.2152

Numerical Simulation and Experiment Research on Aerodynamic Characteristics of a Multi-Blade Centrifugal Fan
p.2157

Design and Implementation of Virtual Interactive Scene Based on Unity 3D
p.2162

Three Kind of Triangle Rational Functions and Applications for Discrete Nonlinear Equations
p.2168

The Vibration Fault Diagnosis of High-Speed Rotating Machinery Based on the Simulation
p.2172

Compressor Anti-Surge Control System Optimization Energy Saving Renovation
p.2177

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 317-319Numerical Simulation and Experiment Research on...

Numerical Simulation and Experiment Research on Aerodynamic Characteristics of a Multi-Blade Centrifugal Fan

Abstract:

The full flow field model of a widely used multi-blade centrifugal fan was built, and unstructured grids were used to discrete the computational domain. The moving reference frame is adopted to transfer data between the interfaces of the rotating field and the stationary field. Pressure boundary conditions are specified to the inlet and the outlet. The SIMPLE algorithm in conjunction with the RNG k-ε turbulent model was used to solve the three-dimensional Navier-Stokes equations. The steady and unsteady numerical simulations of the inner flow in the fan at different working conditions were presented using the CFD method. The numerical simulation results were validated by contrasting to the experiment results. The results displayed the characteristics of the velocity field, pressure field, pressure fluctuation at two monitoring points in the centrifugal fan. The results can provide basis for optimizing the fan design and the internal flow, and have important value of engineering applications in the increase of the overall performance in operation.