Numerical Simulation and Experiment Research of the Whole Flow Field inside a Multi-Blade Centrifugal Fan

Abstract:

The full flow field model of a widely used multi-blade centrifugal was built, using the CFD method, the steady and unsteady numerical simulation of the inner flow in the fan at different working conditions are presented. The numerical simulation results were validated by contrasting to the experiment results. The results displayed the characteristics of the velocity field, pressure field and pressure fluctuate 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.

• Periodical: Advanced Materials Research (Volumes 468-471)
• Pages: 2255-2258
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.468-471.2255
• Online since: February 2012
• Authors: Feng Gao, Wei Yan Zhong
• Keywords: Experiment Research, Multi-Blade Centrifugal Fan, Numerical Simulation, Unsteady Flow

References

[1] Karin H. A study on centrifugal impeller and diffuser flow [J]. ASME Journal of Engineering for Power, 1981, 103: 688-697.

DOI: 10.1115/1.3230791

[2] Wan-Ho Jeon. A numerical study on the effects of design parameters on the performance and noise of a centrifugal fan. Journal of Sound and Vibration, 2003, Vol. 265: 221-230.

DOI: 10.1016/s0022-460x(02)01582-1

[3] Velarde-Sandra．Numerical Prediction of The Aerodynamic Tonal Noise in A Centrifugal Fan. Experimental Thermal and Fluid Science，2002, 26(5): 421-434.

[4] Roland Ewert. Broadband slat noise prediction based on CAA and stochastic sound source from a fast random particle-mesh (RPM) method. Computers &Fluids, 2008, 37: 369-387.

DOI: 10.1016/j.compfluid.2007.02.003

[5] LI Yang, OUYANG Hua, DU Zhao-hui. Experimental research on aerodynamic performance and exit flow field of low pressure axial flow fan with circumferential skewed blades. Journal of Hydrodynamic, 2007, 5：579-586.

DOI: 10.1016/s1001-6058(07)60156-5

[6] M. Govardhan, K. Viswanath. Investigations on an axial flow fan stage subjected to circumferential inlet flow distortion and swirl. J. of Thermal Science, 1997, 4：241-250.

DOI: 10.1007/s11630-997-0003-8

[7] QIAN, Z .D, YANG, J D, HUAI, W X. Numerical simulation and analysis of pressure pulsation in Francis hydraulic turbine with air admission. Journal of Hydrodynamics, 2007, 4: 467-472.

DOI: 10.1016/s1001-6058(07)60141-3

[8] Miyamoto Hiroyuki, Nakashima Yukitoshi. Effects of splitter blades on the flows and characteristics in centrifugal impeller. JSME International Series, 1992, 35(2): 238-246.

DOI: 10.1299/jsmeb1988.35.2_238