The effects of surface roughness and surface geometry on vertical flow boiling heat transfer are explored by conducting a literature review of current studies to determine experimental heat transfer correlations under different surface and fluid conditions, focusing on convective and nucleate boiling regimes, i.e., before the system achieves critical heat flux and dry-out; as well as conducting a model simulation of  a  2-D volume of fluid (VoF), 2 factorial design of experiment (DoE), for nucleate pool boiling, with varying surface friction factor and macroscopic surface geometry. A detailed examination and explanation of the self-assembly and correlations utilized by the software (Fluent) as well as their source, was investigated.

Navier-Stokes equation, laminar-laminar flow interactions, CFD simulations, vertical flow boiling, variable cross section channels, choked flow