Abstract This paper presents a systematic study of flow and heat transfer mechanisms in compressor disk cavity with an axial throughflow under centrifugal buoyancy-driven convection, comparing previously published experimental data. Wall-modeled large-eddy simulations (WMLES) are conducted for six operating conditions, covering range rotational Reynolds number (3.2×105−2.2×106), buoyancy parame...

The present study considers the numerical examination of an unsteady thermo-solutal mixed convection when the extra mass and heat diffusions, called as Soret and Dufour effects, were not neglected. The numerical simulations were performed in a lid-driven cavity, where the horizontal walls were kept in constant temperatures and concentrations. The vertical walls were well insulated. A finite vol...

Laminar, steady-state, natural convection of power-law fluids in 2-D trapezoidal enclosures with a heated bottom wall, adiabatic top wall and cooled inclined sidewalls has been analyzed for the first time based on numerical simulations range different values nominal Rayleigh number (i.e. 103?Ra?105), index 0.6?n?1.8), Prandtl Pr=10, 102,103) sidewall inclination angle 30°???60°). It found that ...

In the last 10 years, there have been a number of studies in modeling of the deposition processes in flowlines. Most of these models: (1) assume empirical or semi-empirical correlations to predict the pressure drop and temperature profile, (2) ignore the radial convection flow in the layer composed of the two-phase wax and oil (that is the gel layer), and (3) use Fick’s law to describe the diff...