Results 41 to 50 of about 284,390 (182)

Dynamics of vortex shedding from slender cones [PDF]

open access: yes, 2009
PhDThe dynamics of vortex shedding from bluff bodies has been investigated experimentally for many decades, with the simple geometric case for the investigation being a uniform circular cylinder aligned with its axis normal to the flow. Even though
Jagadeesh, Chetan Sakaleshpur
core   +4 more sources

Flow Characteristics of Cylinders with Asymmetric Grooves: A Modeling and Experimental Study [PDF]

open access: yesJournal of Applied Fluid Mechanics
This study examined the drag reduction properties of cylindrical flows across various asymmetric notched structures through numerical simulation and particle image velocimetry.
F. Yan   +4 more
doaj   +1 more source

Numerical simulation analysis of flow around near-wall rotating cylinder

open access: yesZhongguo Jianchuan Yanjiu
ObjectivesTo investigate the near-wall rotating cylindrical wake and hydrodynamic characteristics, flow around cylinder at typical gap ratios is investigated.
Zongpeng WANG   +5 more
doaj   +1 more source

Investigation on the Mechanism of Drag Modification over Triangular Riblets

open access: yesJournal of Applied Fluid Mechanics, 2020
This paper presents experimental and numerical investigations on the modification of local spanwise skin-friction over triangular riblets under the total drag reduction condition.
M. M. Zhang, Z. L. Zhang, M. Zhao
doaj  

The Vortex, Volume One

open access: yes, 1975
This file unit contains the first volume of The Vortex, a student led publication established on the University of Central Arkansas campus in ...
The Vortex Magazine of Literature and Fine Arts; University of Central Arkansas Department of English
core   +1 more source

Study of the automotive aerodynamic performance affected by entrance structure of forecabin

open access: yesEnergy and Built Environment, 2021
Recently, the requirement for cooling capacity decreased when the driving energy changed from liquid fuel to lithium batteries. Therefore, the structure and location of the forecabin could be adjusted based on the aerodynamic performance.
Yuqi Huang   +3 more
doaj   +1 more source

Vortex shedding and drag in dilute Bose-Einstein condensates [PDF]

open access: yesJournal of Physics B: Atomic, Molecular and Optical Physics, 2000
Above a critical velocity, the dominant mechanism of energy transfer between a moving object and a dilute Bose-Einstein condensate is vortex formation. In this paper, we discuss the critical velocity for vortex formation and the link between vortex shedding and drag in both homogeneous and inhomogeneous condensates.
Winiecki, T.   +3 more
openaire   +2 more sources

Large Eddy Simulation of Flow over Wavy Cylinders with Different Twisted Angles at a Subcritical Reynolds Number

open access: yesJournal of Marine Science and Engineering, 2019
The deformation of the cylinder has been proved to greatly reduce the fluctuation of lift and the vortex-induced vibration. In this article, a new form of deformation mode for the smooth cylinder is proposed in order to reduce the vortex-induced ...
Chunyu Guo   +5 more
doaj   +1 more source

Wake dynamics and surface pressure variations on two-dimensional normal flat plates

open access: yesAIP Advances, 2019
The relationship between vortex dynamics and surface pressure fluctuations on the leeward face of a two-dimensional normal thin flat plate was studied using Direct Numerical Simulations for incompressible flow at a Reynolds number of 1200.
Arman Hemmati   +2 more
doaj   +1 more source

Study and Evaluation of the Effects of Bionic Groove Structures Applied to Wheel Spokes on the Aerodynamics of a Car Model [PDF]

open access: yesJournal of Applied Fluid Mechanics
Decreasing the wheel aerodynamic drag is one of the important measures for lowering vehicle drag and improving fuel efficiency. The innovation of this study is designing the bionic non-smooth groove structure on the spoke surface as a drag reduction ...
T. H. Huang   +4 more
doaj   +1 more source

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