Numerical Simulation on Enhanced Boiling Heat Transfer With Honeycomb Porous Structured Surfaces
Numerical simulation is employed to investigate the enhanced boiling heat transfer phe-nomenon with honeycomb micro-nano porous structured surfaces obtained through CT scanning,providing a comprehensive analysis of the processes of bubble nucleation,growth,and detachment.The investigation of bubble dynamics and heat flux distribution on the heated surface reveals that the pores in the honeycomb porous surface impose constraints on bubble growth and coalescence,re-sulting in small bubble detachment diameters and high detachment frequency.The increased number of nucleation sites leads to a higher quantity of bubbles detaching from the wall.Consequently,the presence of honeycomb pores on the porous surface accelerating bubble detachment and the abun-dant nucleation sites are the primary factors enhancing the overall heat dissipation performance of the heated surface.
honeycomb porous surfacesCT scanningpool boilingnumerical study
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