Results 31 to 40 of about 14,989 (264)

Natural convection flow from an isothermal horizontal cylinder in presence of heat generation [PDF]

open access: yes, 2006
Natural convection laminar boundary layer flow from a horizontal circular cylinder with a uniform surface temperature at presence of heat generation has been investigated. The governing boundary layer equations are transformed into a non-dimensional form
Paul, MC   +5 more
core   +1 more source

Reducing Drag of Body by Adding a Plate

open access: yesMATEC Web of Conferences, 2018
This paper focuses on theoretical investigations of the location of a separation point laminar boundary layer on the surface of a circular cylinder. The investigations were carried out by CFD software FlowSimulation.
Vladimir A. Frolov, Anna S. Kozlova
doaj   +1 more source

Wake states and frequency selection of a streamwise oscillating cylinder [PDF]

open access: yes, 2013
This paper presents the results of an in-depth study of the flow past a streamwise oscillating cylinder, examining the impact of varying the amplitude and frequency of the oscillation, and the Reynolds number of the incoming flow.
Leontini, Justin S.   +2 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Interaction of a Solitary Wave with Vertical Fully/Partially Submerged Circular Cylinders with/without a Hollow Zone

open access: yesJournal of Marine Science and Engineering, 2020
In this article, a three-dimensional, fully nonlinear potential wave model is applied based on a curvilinear grid system. This model calculates the wave action on a fully/partially submerged vertical cylinder with or without a hollow zone.
Chih-Hua Chang
doaj   +1 more source

Detached-eddy simulation of flow around a circular cylinder in ground effect [PDF]

open access: yes, 2006
In this study we performed a detached-eddy simulation (DES) of flow around a circular cylinder placed near and parallel to a moving ground, on which no boundary layer developed to interfere with the cylinder.
Zhang, Xin   +2 more
core  

A numerical study of an inline oscillating cylinder in a free stream [PDF]

open access: yes, 2011
Simulations of a cylinder undergoing externally controlled sinusoidal oscillations in the free stream direction have been performed. The frequency of oscillation was kept equal to the vortex shedding frequency from a fixed cylinder, while the amplitude ...
Leontini, Justin S.   +5 more
core   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Investigating the effect of rotational degree of freedom on a circular cylinder at low reynolds number in cross flow [PDF]

open access: yes, 2011
Numerical simulations of Vortex-Induced Vibrations (VIV) of a circular cylinder in cross flow with a rotational degree of freedom about its axis have been carried out by means of a finite-volume method.
Wissink, J   +5 more
core  

Modification of three-dimensional transition in the wake of a rotationally oscillating cylinder [PDF]

open access: yes, 2010
A study of the flow past an oscillatory rotating cylinder has been conducted, where the frequency of oscillation has been matched to the natural frequency of the vortex street generated in the wake of a stationary cylinder, at Reynolds number 300.
Leontini, Justin S.   +7 more
core   +1 more source

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