Compound Wall Treatment for RANS Computation of Complex Turbulent Flows and Heat Transfer

Dynamic wall modeling for LES of complex turbulent flows

A Study of Numerical Modeling of Heat Transfer in Wall-Adjacent Turbulent Flows

-In this paper we present some of the most practical problems of convective heat transport to or from a rigid surface, the flow in the vicinity of the body is in turbulent motion. On the hand, at the solid-fluid interface itself, the noslip boundary condition ensures that turbulent velocity fluctuations vanish. But, at the wall, the diffusive transport of heat and momentum in the fluid is preci...

Advanced near-wall heat transfer modeling for in-cylinder flows

Most of the existing wall heat transfer models employed for in-cylinder flow simulations are not capable of predicting the history and peak value of the heat flux. More comprehensive models that account for density and property variations rely mainly on the standard or low-Reynolds number variants of k-ε turbulence model. Presently applied mesh resolutions already allow for first near-wall comp...

Heat transfer from a cylinder in axial turbulent flows

Local convective heat transfer coefficients were measured on a two-diameter long cylinder in axial flows of air at conditions unexplored so far, by using thermochromic liquid crystals (TLC) coated on an electrically heated strip-foil consisting bonded to the external surfaces. The Reynolds numbers (Re) based on the cylinder diameter were between 8.9 · 10 and 6.17 · 10, and the flow in front of ...

Modeling unsteady turbulent flows over ripples: RANS versus LES