Results 41 to 50 of about 245,469 (326)
Xibei Gongye Daxue Xuebao, 2021 Based on the complex flow field of vertical takeoff and landing (VTOL) aircraft with distributed propulsion, the influence of the turbulence intensity and gradient of turbulence intensity on the aerodynamic characteristics of two-dimensional airfoil ...
doaj +1 more source
Transition to subcritical turbulence in a tokamak plasma [PDF]
Journal of Plasma Physics, 2016 Tokamak turbulence, driven by the ion-temperature gradient and occurring in the presence of flow shear, is investigated by means of local, ion-scale, electrostatic gyrokinetic simulations (with both kinetic ions and electrons) of the conditions in the ...
F. van Wyk +5 more
semanticscholar +1 more source
Intermittency in the Transition to Turbulence [PDF]
SIAM Journal on Applied Mathematics, 2003 The aim of the paper is to provide a simple model which avoids the detailed complexities of three-dimensional turbulent flow, but which is nevertheless built solidly on observed features of turbulence and on an experimentally determined drag law. The first section deals with the characteristics of the intermittent transition to turbulence in pipe flow,
Fowler, A, Howell, P
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Transition to turbulence in driven active matter [PDF]
Physical Review E, 2020 A Lorenz-like model was set up recently, to study the hydrodynamic instabilities in a driven active matter system. This Lorenz model differs from the standard one in that all three equations contain non-linear terms. The additional non-linear term comes from the active matter contribution to the stress tensor.
Aritra Das +2 more
openaire +3 more sources
Turbulence vertical structure of the boundary layer during the afternoon transition [PDF]
Atmospheric Chemistry and Physics, 2015 We investigate the decay of planetary boundary layer (PBL) turbulence in the afternoon, from the time the surface buoyancy flux starts to decrease until sunset.
C. Darbieu +10 more
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Direct Numerical Simulations of the Pulsating Flow over a Plane Wall
Journal of Marine Science and Engineering, 2020 The results of direct numerical simulations of the flow generated in a plane duct by a pressure gradient which is the sum of two terms are described.
Giovanna Vittori +2 more
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International Journal of Turbomachinery, Propulsion and Power, 2021 The aim of this work is to study the influence of different subgrid-scale (SGS) closure models and inflow turbulence conditions on the boundary layer transition on the suction side of a highly loaded transonic turbine cascade in the presence of high free-
Ettore Bertolini +2 more
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Laminar Turbulent Transition in a Boundary Layer Subjected to Weak Free Stream Turbulence
Journal of Fluid Science and Technology, 2008 For revealing the transition process in a flat plate boundary layer subjected to a weak free stream turbulence, flow visualization and hot-wire measurements were performed. A weak free stream turbulence was generated by a turbulence grid mounted upstream
Toshiaki KENCHI +2 more
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Transition probability to turbulent transport regime [PDF]
Plasma Physics and Controlled Fusion, 2002 9 pages, 6 figures, to be published in Plasma Phys.
Kawasaki, Mitsuhiro +4 more
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Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres
Advanced Engineering Materials, EarlyView.This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann +3 more
wiley +1 more source