Results 11 to 20 of about 2,038,662 (294)

Aeroacoustic analysis based on FW–H analogy to predict low-frequency in-plane harmonic noise of a helicopter rotor in hover

open access: yesArchives of Mechanics, 2022
The integral formulation of the Ffowcs-Williams and Hawkings (FW–H) analogy, developed by Farassat (known as Farassat’s formulation 1A), is implemented to study the sound generation and propagation of rotating slender bodies.
T. Suresh, O. Szulc, P. Flaszynski
doaj   +1 more source

Accretion and Evaporation of Modified Hayward Black Hole [PDF]

open access: yes, 2015
First we have assumed the most general static spherically symmetric black hole metric. The accretion of any general kind of fluid flow around the black hole have been investigated.
Debnath, Ujjal
core   +2 more sources

Fractal model and Lattice Boltzmann Method for Characterization of Non-Darcy Flow in Rough Fractures. [PDF]

open access: yes, 2017
The irregular morphology of single rock fracture significantly influences subsurface fluid flow and gives rise to a complex and unsteady flow state that typically cannot be appropriately described using simple laws.
Chang, Chun   +4 more
core   +1 more source

Hydrogen production by the steam reforming of synthetic biogas in atmospheric-pressure microwave (915 MHz) plasma

open access: yesScientific Reports, 2023
This paper is a contribution to the development of microwave plasma-based technology aimed at efficient hydrogen (H2) production from a so-called synthetic biogas, considered a mixture of methane (CH4) and carbon dioxide (CO2), which can contain up to 70%
Bartosz Hrycak   +5 more
doaj   +1 more source

Barely visible impact damage identification in a 3D core sandwich structure

open access: yesComputer Assisted Methods in Engineering and Science, 2018
3D core sandwich structure (3DCSS) is a popular lightweight construction material in the automotive, aerospace and marine industries. However, barely visible low-speed impact-damage (BVLID) may occur in the 3DCSS due to foreign-object-impact that can ...
Shirsendu Sikdar   +3 more
doaj   +1 more source

Geometry of unsteady fluid transport during fluid–structure interactions [PDF]

open access: yes, 2007
We describe the application of tools from dynamical systems to define and quantify the unsteady fluid transport that occurs during fluid–structure interactions and in unsteady recirculating flows.
Dabiri, John O.   +3 more
core   +1 more source

Mixing and transport by ciliary carpets: a numerical study [PDF]

open access: yes, 2013
We use a 3D computational model to study the fluid transport and mixing due to the beating of an infinite array of cilia. In accord with recent experiments, we observe two distinct regions: a fluid transport region above the cilia and a fluid mixing ...
Ding, Yang   +3 more
core   +3 more sources

SHOCK WAVE INDUCED FLOW SEPARATION CONTROL BY AIR-JET AND ROD VORTEX GENERATORS

open access: yesTASK Quarterly, 2015
Flow separation control by Vortex Generators (VGs) has been analyzed over the last decades. The majority of the research concerning this technology has been focused on subsonic flows where its effectiveness for separation reduction has been proven. Less
FERNANDO TEJERO   +2 more
doaj   +1 more source

Influence of the enclosed fluid on the flow over a microstructured surface in the Cassie state

open access: yes, 2013
Analytical expressions for the flow field as well as for the effective slip length of a shear flow over a surface with periodic rectangular grooves are derived.
Baier, Tobias   +2 more
core   +1 more source

Stability of plane Poiseuille-Couette flows of a piezo-viscous fluid [PDF]

open access: yes, 2009
We examine stability of fully developed isothermal unidirectional plane Poiseuille--Couette flows of an incompressible fluid whose viscosity depends linearly on the pressure as previously considered in Hron01 and Suslov08.
Suslov, Sergey A., Tran, Thien Duc
core   +2 more sources

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