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A Comprehensive CFD Method for Thermal Performance Evaluation of a Scooter Type Motorcycle and Its Application
Published November 05, 2017 by Society of Automotive Engineers of Japan in Japan
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Thermal management is of vital importance in the development of a scooter type motorcycle (two-wheeler). Traditionally the thermal management development of a two-wheeler is done through experimental methods, or using sub-system level CFD models. In current work, a comprehensive, complete vehicle, three-dimensional CFD model has been developed to assess thermal performance of the scooter and its sub-systems. The model can predict thermal performance in different operating conditions, such as, wide open throttle, idling and key-off. A typical thermal interaction in engine happens through metal contact conduction, air cooling and oil flow path in the engine. The model can capture the sub system interaction, such as, an interaction between the cooling system and engine cabin. Modeling oil is computationally expensive, as it involves complex physics modeling such as multiphase flow. An energy balance based new sub-model is added to the CFD model which can predict the engine oil temperature without modeling the oil flow inside the oil sump. A good correlation for this new sub-model has been achieved between CFD model and on-road experimental values. The air and solid temperatures at different locations of engine and vehicle from CFD model has been validated with the on-road measurement. The time to build and evaluate a design is being reduced to one fifth with this new method, and incorporating any design change in the model and its evaluation through CFD is reduced to one tenth. Finally, a case-study has been presented to demonstrate how the model has been used in product development process by capturing various failure modes early in the product development process and resolution of these failure modes using model and test.
CitationKumar, G., Suresh, M., and Garg, M., "A Comprehensive CFD Method for Thermal Performance Evaluation of a Scooter Type Motorcycle and Its Application," SAE Technical Paper 2017-32-0036, 2017.
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- Kiura T. , Kushibiki T. , and Shiomi K. Research on prediction of cooling air flow in small air cooled utility engine SAE Technical Paper 2005-32-0023 2005
- Manish G. , and Hanuma Kumar O. Experimental and CFD simulation based analytical optimization of air cooling system for a small 4-stroke scooter engine SAE Technical Paper 2005-32-0026 2005
- Vishal Kumar. , Omprakash Singh. , Manish Garg. , and Choudhary Yatin V. Optimization of air cooling system of 4-stroke scooter engine SAE Technical Paper 2008-32-0071 2008
- Thomas B. , and Heinrich R. Aspects of under hood thermal analyses SAE Technical Paper 2012-01-0635 2012
- Heinrich R. , and Walter B. Simulation process of the heat protection of a full vehicle SAE Technical Paper 2012-01-0635 2012