Numerical Study on Flow and Heat Tranfer in Shrouded Rotating Disk System with Central Air Inflow

The mixing length model and conjugation calculation were applied to the numerical simulation for the fluid flow and heat transfer process in a rotating shrouded disk with central coolant inlet.Comparison the simulation results with experiments indicates that the mixing length model gives quite reasonable prediction.Numerical simulation shows that:(1)the location of the maximum Nusselt number was offset from the stagnation point at a certain distance;(2)the heat transfer was enhanced with the increase of rotating speed and coolant flow rate.