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Impact of Inlet Angle on Cooling of a Continuously Variable Transmission in a BAJA SAE Vehicle
Amitabh Das, Tarashekhar Padhy,
Published in
Pages: 47 - 56
Continuous operation of the CVT or continuously variable transmission results in enormous generation of heat and thermal gradient within the transmission unit. This can lead to substantial damage of the rotating belt and pulleys in contact eventually affecting its performance. This reduces the torque transfer capacity of the CVT. CVT can be cooled with the assistance of air inlet on its cover. This paper analyzes the various angle of air inlet for CVT cover and determines the ideal inlet geometry for maximum cooling effect using CFD simulation in ANSYS Fluent. Based on benchmarking, the dimensions of the Gaged GX9 are used and the cover is designed using the appropriate dimensions from the BAJA SAE Rulebook 2018. Different inlet geometries are simulated for constant heat generation rates and the resultant heat flux, outlet temperature and internal temperatures are calculated for each of them using ANSYS. The outcome is a well-defined angle of inlet for the given CVT cover model, which enables better cooling and yields satisfactory results. CVT, heat transfer, inlet angle, CFD
About the journal
JournalLecture Notes in Mechanical Engineering