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Withdrawal of heat from internal combustion engines is a major concern in today's automotive industry, mainly due to material constraints and components durability. In this sense, a numerical study was conducted to analyze the water flow inside MWM INTERNATIONAL's high-speed diesel engine, in order to determine possible cavitation regions, which can reduce the heat transfer efficiency. The analysis is carried out with the help of computational fluid dynamics (CFD) commercial software FLUENT, from ANSYS Inc. The model was built as steady-state, turbulent, single phase flow. Heat transfer from the solid water jacket to the fluid zone was also considered. For this reason, the cavitation regions were identified through vapor pressure.

Withdrawal of heat from internal combustion engines is a major concern in today's automotive industry, mainly due to material constraints and components durability. A well-designed cooling system may increase engine's reliability. In the light of this, a numerical study has been conducted to analyze the water flow inside MWM INTERNATIONAL's high-speed diesel engine. The study has been done in order to determine possible cavitation and boiling regions, which can reduce the heat transfer efficiency. The analysis was carried out with the help of computational fluid dynamics (CFD) commercial software ANSYS FLUENT®. The flow was considered to be steady-state, turbulent, with heat transfer and the fluid was treated as a single phase. For this reason, the possible cavitation and boiling regions are identified through vapor pressure and boiling temperature, respectively.