Numerical simulation of annular flow boiling in microchannels

Flow Boiling Heat Transfer in Microchannels

Flow Patterns During Convective Boiling in Microchannels

Thermal Transpiration Flow in Annular Microchannels

Thermal transpiration flows of rarefied gases in annular channels are considered, where the driving force for the flow is a temperature gradient applied in the channel walls. The influence of gas rarefaction, aspect ratio of the annulus, and surface accommodation coefficient on mass and heat transfer in the process are investigated. For this, the linearized Navier– Stokes–Fourier (NSF) and regu...

Numerical simulation of flow through microchannels with designed roughness

A three-dimensional numerical simulation of flow through serpentine microchannels with designed roughness in form of obstructions placed along the channels walls is conducted here. CFD-ACE+ is used for the numerical simulations. The effect of the roughness height (surface roughness), geometry, Reynolds number on the friction factor is investigated. It is found that the friction factor increases...

Surface Roughness Effects on Flow Boiling in Microchannels