Results 61 to 70 of about 284,390 (182)

Extensive study of flow characters for two vertical rectangular polygons in a two-dimensional cross flow

open access: yesFrontiers in Mechanical Engineering
Fluid dynamics problems have a significant impact on the growth of science and technologies all over the world. This study investigates viscous fluid’s behavior when interacting with two rectangular polygons positioned vertically and aligned in a ...
Farheen Gul   +4 more
doaj   +1 more source

Experimental study of the vortex system generated by a Formula 1 front wing [PDF]

open access: yes, 2007
This thesis describes the research undertaken on the behaviour of the vortex system generated by a Formula 1 front wing, as it travels about a rotating wheel.
Pegrum, Jonathan Mark
core   +1 more source

Vortex Characterization and Parametric Study of Miniature Vortex Generators and Their Near-Field Boundary Layer Effects

open access: yesApplied Sciences
Delaying the onset of laminar-turbulent transition is an attractive method in reducing skin friction drag, especially on streamlined bodies where Tollmien–Schlichting instabilities are the dominating mechanism for transition. Miniature Vortex Generators (
Gilles De Baets   +4 more
doaj   +1 more source

Numerical Investigation of Effect of Arrangement of Generators on Flow over a Suboff Submrine Model

open access: yesنشریه مهندسی دریا, 2019
The vortex generated around a submarine has an important influence on the uniformity of the submarine wake at the propeller and hydrodynamic noise. A suitable way to reduce the effects of this separated flow is to use vortex generators. Vortex generators
AmirHamzeh Farajollahi   +2 more
doaj  

Vortex-induced vibrations of a long flexible cylinder in shear flow [PDF]

open access: yes, 2010
We investigate the in-line and cross-flow vortex-induced vibrations of a long cylindrical tensioned beam, with length to diameter ratio L/D = 200, placed within a linearly sheared oncoming flow, using three-dimensional direct numerical simulation.
Triantafyllou, Michael S.   +5 more
core   +1 more source

Lock-in of the vortex-induced vibrations of a long tensioned beam in shear flow [PDF]

open access: yes, 2011
The occurrence of lock-in, defined as the local synchronization between the vortex shedding frequency and the cross-flow structural vibration frequency, is investigated in the case of a tensioned beam of length to diameter ratio 200, free to move in both
Rémi Bourguet   +5 more
core   +1 more source

Experimental and Numerical Investigation of a Novel Vortex Reducer in a Co-Rotating Cavity of Aeroengines

open access: yesAerospace
Improving airflow pressure is of great significance for the cooling and sealing of aeroengines. In a co-rotating cavity with radial inflow, vortex reducers are used to decrease the pressure drop. However, the performance of traditional vortex reducers is
Wenjie Shen   +4 more
doaj   +1 more source

A computational study of flow past three unequal sized square cylinders at different positions

open access: yesAIP Advances, 2017
The flow past three unequal sized side-by-side square cylinders placed in different vertical configurations is investigated numerically using the lattice Boltzmann method for the Reynolds number Re = 160 and different values of the gap spacing between ...
Shams-ul Islam   +4 more
doaj   +1 more source

Experimental and Numerical Analysis of the Effect of Vortex Generator Height on Vortex Characteristics and Airfoil Aerodynamic Performance

open access: yesEnergies, 2019
To explore the effect of the height of vortex generators (VGs) on the control effect of boundary-layer flow, the vortex characteristics of a plate and the aerodynamic characteristics of an airfoil for VGs were studied by both wind tunnel experiments and ...
Xinkai Li, Ke Yang, Xiaodong Wang
doaj   +1 more source

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