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CFD Analysis of Axial Flow Fans for Radiator Cooling in Automobile Engines
Technical Paper
2007-01-4262
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Radiators are installed in automobiles to remove heat from the coolant. The use of higher output engines with tightly compacted under hood packaging, the addition of new emission components, and aerodynamic front end styling with narrower openings are creating a hostile thermal environment in the engine compartment. This results in a smaller volume of under hood cooling air. So, to handle higher volume flow rates of air axial flow fans are used to cool the radiators. These fans consume considerable amount of power from the engine and hence the performance of the axial flow fan is an important parameter of the efficiency of the engine cooling system. CFD is used as a major design tool to investigate major issues related to the performance of fan, like volume flow rate and static pressure rise etc. The present work investigates the characteristics of the flow over axial flow fans, which are used for radiator cooling, using CFD code FLUENT 6.0. Comparison between CFD simulation and results from Blade Element Theory of two typical commercial axial flow fans with different blade profiles are presented. It is noticed that the fan efficiency can be improved by a fixed ring at the fan tip which avoids the back flow from casing. The heat from the engine coolant can be converted into work using an Axial-flow turbine before entering the radiator.
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Citation
Nageswara, R., Sukhvinder, K., Ravi, K., and Niranjan, K., "CFD Analysis of Axial Flow Fans for Radiator Cooling in Automobile Engines," SAE Technical Paper 2007-01-4262, 2007, https://doi.org/10.4271/2007-01-4262.Also In
References
- Yoon Jong-Hwan and Lee Sang-Joon Stereoscopic PIV measurements of flow behind an isolated low-speed axial-fan Experimental Thermal and Fluid Science 28 2004 791 802
- Vad Janos and Bencze Ferenc Three-dimensional flow in axial flow fans of non-free vortex design International Journal of Heat and Fluid Flow 19 601 607
- Estevadeordal J. Gogineni S. Copenhaver W. Bloch G. and Brendel M. Flow Field in a low-speed axial fan- a DPIV investigation Experimental Thermal and Science 23 2000 11 21
- Yen S.C. and Lin Frank K.T. Exit flow field and Performance of Axial Flow Fans Journal of Fluids Engineering - ASME 128 2006 332 340
- Xu C. Amano R. S. , and Perez R. Unsteady Pressure Field Investigation of an Axial Fan-Inlet and Outlet Unsteady Pressure Field Measurement International Journal of Rotating Machinery 8 6 375 383 2002
- Morris S.C. Good J.J. Foss J.F. Velocity measurements in the wake of an auto-motive cooling fan Experimental Thermal and Science 17 1998 100 106
- Jang C.M. Sato D. and Fukano T. Experimental analysis on tip leakage and wake flow in an Axial Flow Fan according to Flow rates Journal of Fluids Engineering Transactions of ASME 127 2005 322 329
- Wu S.F. Su S. and Shah H. Noise Radiation from Engine Cooling Fans Journal of Sound and Vibration 216 1 107 132
- SZLIKA Ferenc and LOHÁSZ Máté Calculation of Flow Pattern with ? - O method in an Axial Flow Fans Periodica Polytechnica ser. Mech.Eng. 46 2 101 106 2002
- Shimada Kota , Kimura Kazuhide and Watanbe Hiroshi , A Study of radiator Cooling Fan With Labyrinth Seal JSAE review 24 2003
- Venter S.J. and Kroger D.G. , The effect of tip clearance on the performance of an Axial Flow Fan Energy Conservation Management 33 2 89 97 1992
- Miyake Y. Inaba T. and Kato T. Improvement of Unstable Characteristics of an Axial Flow Fan by Air-Seperator Equipment Transactions of A.S.M.E. 109 March 1987
- Fukano T. and Jang C.M. Tip clearance noise of axial flow fans operating at design and off-design condition Journal of Sound and Vibration 275 2004 1027 1050
- Roy Subrata Cho Phillip and Périé Fred Designing Axial Fan for Flow and Noise SAE paper 1999-01-2817
- Terry, Wright “The search for simple models to predict fan performance and noise” Noise Control Engineering Journal 43 4 85 89 July-August 1995
- Lin B.J. Hung C.I. and Tang E.J. “An optimal design of axial flow fan blades by the machining method and an artificial neural network” Proceedings of the Institution of Mechanical Engineers. Part C, Journal of Mechanical engineering Science 216 3 367 376 2002
- Anderson John D. Jr. , Computational Fluid Dynamics-The Basics with applications McGraw-Hill 1995