*Assistant Professor, Department of Mechanical Engineering, Sri Ramakrishna Engineering College, Coimbatore, Tamilnadu, India
**Professor and Head, Department of Mechanical Engineering, Sri Ramakrishna Engineering College, Coimbatore, Tamilnadu, India
Online published on 1 June, 2016.
A computational fluid dynamics based approach is made to numerically investigate the temperature distribution and heat removal in a motorized high speed spindle with a cooling channel in the spindle casing parallel to the axis. A casing of a motorized high speed spindle used in printed circuit board industry with a maximum speed of 1, 60, 000 rpm is modelled with an in-built elliptical cross-sectional cooling channel. The finite volume method was used to discretize the model and simulated with various parameters like number of lines in the cooling loop, number of heat sources and different inlet velocities of the cooling fluid. The simulation results show that the temperature on the outer-wall of the casing gets decreased and heat generated has been removed efficiently by enhancing the inlet velocity of cooling fluid and the number of lines in the loop. The temporal behaviour corresponds to the time depend heat flux was also discussed.
Computational fluid dynamics, Heat generation, Cooling channel, Convection and Flowrate
