Review of predictive models for the design of counterflow vortex tubes working with perfect gas
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Thermal Sciences"
DOI: 10.1016/j.ijthermalsci.2019.03.024
Abstract: Abstract This review will focus on perfect gas models developed to predict the performances of counterflow vortex tubes. It includes empirical and thermodynamics models, models of heat exchangers, models based on a pressure gradient, models… read more here.
Keywords: review; vortex tubes; perfect gas; vortex ... See more keywords
Complete measurement of helicity and its dynamics in vortex tubes
Sign Up to like & getrecommendations! Published in 2017 at "Science"
DOI: 10.1126/science.aam6897
Abstract: Linking fluids as they twist and writhe Helicity is a measure of cork-screw-like motion described by the amount of twisting, writhing, and linking in a fluid. Total helicity is conserved for ideal fluids, but how… read more here.
Keywords: total helicity; vortex tubes; complete measurement; helicity ... See more keywords
Horizontal Vortex Tubes near a Simulated Tornado: Three-Dimensional Structure and Kinematics
Sign Up to like & getrecommendations! Published in 2019 at "Atmosphere"
DOI: 10.3390/atmos10110716
Abstract: Supercell thunderstorms can produce a wide spectrum of vortical structures, ranging from midlevel mesocyclones to small-scale suction vortices within tornadoes. A less documented class of vortices are horizontally-oriented vortex tubes near and/or wrapping about tornadoes,… read more here.
Keywords: three dimensional; vortex tubes; tubes near; kinematics ... See more keywords
Numerical Simulations of Cryogenic Hydrogen Cooling in Vortex Tubes with Smooth Transitions
Sign Up to like & getrecommendations! Published in 2021 at "Energies"
DOI: 10.3390/en14051429
Abstract: Improving efficiency of hydrogen cooling in cryogenic conditions is important for the wider applications of hydrogen energy systems. The approach investigated in this study is based on a Ranque-Hilsch vortex tube (RHVT) that generates temperature… read more here.
Keywords: hydrogen; numerical simulations; tube; hydrogen cooling ... See more keywords