Vortical structures and wakes of a sphere in homogeneous and density stratified fluid
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Hydrodynamics"
DOI: 10.1007/s42241-021-0032-x
Abstract: Vortical structures and wakes of bluff bodies in homogenous and stratified environment are common and important in ocean engineering. Based on the Boussinesq approximation, a thermocline model is proposed to deal with the variable density… read more here.
Keywords: density stratified; wakes sphere; structures wakes; vortical structures ... See more keywords
Vortical structures and pressure pulsations in draft tube of a Francis-99 turbine at part load: RANS and hybrid RANS/LES analysis
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Heat and Fluid Flow"
DOI: 10.1016/j.ijheatfluidflow.2016.05.007
Abstract: Abstract Recognizing the limitations of the conventional linear-eddy-viscosity (LEVM) Reynolds-averaged Navier–Stokes (RANS) models to reproduce complex three-dimensional unsteady flows in hydraulic machinery, we performed a comparative assessment of a second-moment (Re-stress model, RSM) RANS closure… read more here.
Keywords: rans les; vortical structures; tube francis; pressure pulsations ... See more keywords
Formation and turbulent breakdown of large-scale vortical structures behind an obstacle in a channel at moderate Reynolds numbers
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DOI: 10.1063/1.5120611
Abstract: This paper deals with experimental investigation and direct numerical simulation of three-dimensional separated laminar and transitional flows behind a semicircular spanwise rib on a bottom wall of a rectangular channel at Reynolds numbers of up… read more here.
Keywords: large scale; reynolds numbers; vortical structures; scale vortex ... See more keywords
Influence of cavitation on vortical structures and energy loss in a waterjet pump
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DOI: 10.1063/5.0187311
Abstract: Cavitation-induced vortex and energy loss are critical topics in the field of hydraulic machinery. Through a combination of experimental and numerical analysis, this paper investigates how blade loading affects vortical structures and energy loss during… read more here.
Keywords: energy loss; entropy production; cavitation; vortical structures ... See more keywords