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A Numerical Simulation Tool for Automotive Cooling System Design
Technical Paper
2008-01-0398
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Aim of this paper is to present a simulation tool for the design of engine cooling systems. In this mathematical model both the fluid streams are numerically solved. The model of the coolant flow outlines a computational inexpensive technique based on the one-dimensional network flow theory to analyze cooling circuits of high complexity. This tool involves the prediction of the coolant flow rates and temperature values for each component of the cooling system. Furthermore, a distributed parameter model is implemented in order to couple a Computational Fluid Dynamics (CFD) analysis concerning the air flow through the radiator and its affect on the heat transfer. The validation process of the distributed parameter model has been applied to a radiator test bench circuit. By using different heat exchange coefficient definitions the deviation between the experimental values and the computed ones has been pointed out. Moreover, a sensibility analysis to the grid resolution of the radiator numerical model has been carried out. Furthermore, a thermal management simulation based on the Maserati Quattroporte cooling system has been performed in order to verify the numerical prediction in a complex circuit, adopting also a non uniform velocity distribution through the radiator. These results have been compared with vehicle experimental data extrapolated from an environmental wind tunnel test, showing a good agreement with the reference data.
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Gattei, L., Rossi, R., and Cardile, E., "A Numerical Simulation Tool for Automotive Cooling System Design," SAE Technical Paper 2008-01-0398, 2008, https://doi.org/10.4271/2008-01-0398.Also In
References
- Rossi, R. “Progettazione Termofluidodinamica Avanzata mediante Tecniche Numeriche Multidimensionali” MSc Dissertation University of Bologna 2002
- Takeuchi Toshio Kohri Itsuhei Development of Prediction Method of Engine Cooling Performance JSAE proceeding 20005312 2000
- Takeuchi Toshio Kakishita Naoya Kohri Itsuhei The Prediction of Refrigeration Cycle Performance with Front And Air Flow CFD Analysis of an Automotive Air Conditioner SAE paper 2002-01-0512 2002
- Alshamani Kaisar Equation for Physical Properties of Automotive Coolants SAE paper 2003-01-0532 2003
- Lin Changhua Saunders Jeffrey Watkins Simon Mole Lindsay Increased Productivity, Use of Specific Dissipation to Evaluate Vehicle Engine Cooling SAE paper 970137 1997
- Lin Changhua Saunders Jeffrey Watkins Simon The Effect of Changes in ambient and Coolant Radiator Inlet Temperatures and Coolant Flowrate on Specific Dissipation SAE paper 2000-01-0579 2000
- Johannessen Kristian Saunders Jeffrey Sheridan John Experimental Assessment of CFD Predictions of Fascia Performance SAE paper 2002-01-0570 2002
- Ng Eton Y. Johnson Peter W. Watkins Simon Grant Leigh Wind Tunnel Tests of Vehicle Cooling System Performance at High Blockage SAE paper 2000-01-0351 2000
- Kays W.M. London A.L. Compact Heat Exchangers 3rd Krieger Publishing Company 1998
- Mills A.F. Heat Transfer 2nd Prentice Hall 1999
- Bowman, R.A. Mueller, A.C. Nagle, W.M. Mean Temperature Difference in Design Trans. ASME 62 283 294 1940
- Mason, J.L. Heat Transfer in Cross Flow Proc. 2 nd U.S. National Congress of Applied Mechanics ASME 801 803 New York 1955
- Tucker, A.S. The LMTD Correction Factor for Single-Pass Crossflow Heat Exchangers with Both Fluid Unmixed ASME J. Heat Transfer 118 488 490 1996
- Fakheri Ahmad A General Expression for the Determination of the Log Mean Temperature Correction Factor for Shell and Tube Heat Exchangers ASME J. Heat Transfer 125 527 530 2003
- Fabbri G. Di Piazza S. Piraccini F. Rossi R. Numerical Multi-scale Analysis of Motorbike Heat Exchangers SAE paper 2005-01-1923 2005