The water surface response to subcritical turbulent flow over a backward-facing step (BFS) is studied via high-resolution large-eddy simulation (LES). LES method validated first using data of previously reported experiments. LES-predicted decomposed into different types gravity waves as well turbulence-driven forced waves. Analysis the reveals interplay between low-frequency large-scale turbule...

Abstract The convective heat transfer and flow field characteristics through a backward-facing step (BFS) channel combined with corrugated wall is investigated numerically experimentally. Uniform flux applied on 200 mm of the downstream wall, while rest walls are considered isolated surfaces. range Reynolds number (Re) was between 5000 20,000. governing equations were solved using RNG k ? e tur...

Numerical modeling of the flow structure and heat transfer in a gas-droplet turbulent duct with forward-facing step is carried out. The two-dimensional RANS equations are used numerical solution. Eulerian two-fluid approach for describing dynamics gaseous dispersed phases. turbulence carrier phase described using an elliptical Reynolds stress model taking presence phase. It shown that finely-di...