Results 61 to 70 of about 56,251 (190)
EnergiesSwirl-stabilized combustors are central to gas turbine technology, where the swirl number critically determines flow structure and combustion stability. This work systematically investigates the isothermal flow in a dual-swirl combustor, focusing on two ...
Hafiz Ali Haider Sehole +5 more
doaj +1 more source
Supersonic shock wave/vortex interaction [PDF]
Although shock wave/vortex interaction is a basic and important fluid dynamics problem, very little research has been conducted on this topic. Therefore, a detailed experimental study of the interaction between a supersonic streamwise turbulent vortex ...
Cattafesta, L., Settles, G. S.
core +1 more source
Critical velocity of a finite-temperature Bose gas
, 2016 We use classical field simulations of the homogeneous Bose gas to study the breakdown of superflow due to vortex nucleation past a cylindrical obstacle at finite temperature.
Barenghi, C. F. +3 more
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The Generation and Maintenance of Hollow PV Towers in a Forced Primitive Equation Model
Proceedings, 2017 Diabatic heating from deep moist convection in the hurricane eyewall produces a towering annular structure of elevated potential vorticity (PV), known as a hollow PV tower. For sufficiently thin annular structures, eddies can extract energy from the mean
Gabriel J. Williams Jr.
doaj +1 more source
A group-velocity criterion for breakdown of vortex flow: An application to measured inlet profiles [PDF]
Vortex flows exhibiting breakdown in a slightly divergent duct were measured. The slowly varying vortex flow field downstream of the entrance and upstream of the breakdown region is obtained numerically by using the inviscid quasi-cylindrical ...
Tsai, C. Y., Widnall, S. E.
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Rotor aerodynamic power limits at low tip speed ratio using CFD [PDF]
, 2014 When investigating limits of rotor aerodynamic models, the Betz limit serves as a solid marker of an upper limit which no model should be able to exceed. A century ago Joukowsky (1912) proposed a rotor aerodynamic model utilizing a rotating actuator disc
Dan Henningson +10 more
core +1 more source
Evolution of isolated turbulent trailing vortices [PDF]
, 2008 In this work, the temporal evolution of a low swirl-number turbulent Batchelor vortex is studied using pseudospectral direct numerical simulations. The solution of the governing equations in the vorticity-velocity form allows for accurate application of ...
Chow J. +4 more
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The breakup of the Southern Hemisphere spring polar ozone and temperature minimums from 1979 to 1987 [PDF]
The purpose of this study is to quantify the observations of the polar vortex breakup. The data used in this study consist of Total Ozone Mapping Spectrometer (TOMS) data, and National Meteorological Center (NMC) analyses.
Newman, Paul A., Schoeberl, Mark R.
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AerospaceNumerical simulations of an 80-degree delta wing in free-to-roll motion are performed by applying the dynamic fluid–body interaction (DFBI) model and the overlap/chimera method using the URANS equations.
Mohamed Sereez +3 more
doaj +1 more source