Results 11 to 20 of about 13,259,157 (240)

Flow Control, Active and Passive Applications

open access: yesApplied Sciences, 2023
The Boundary Layer (BL) dynamic performance greatly affects the forces acting on any Bluff body [...]
Josep M. Bergadà, Gabriel Bugeda
doaj   +8 more sources

Active and Passive Flow Control of Turbomachines [PDF]

open access: yesInternational Journal of Rotating Machinery, 2013
Turbomachines are used in a wide range of applications. Increasing the efficiency and operating range of turbomachines reduces fuel consumption of gas turbine power plants and other applications. Over the years, many attempts have been made to achieve these objectives.
N. Sitaram   +2 more
doaj   +2 more sources

Microfluidic flow-cell with passive flow control for microscopy applications.

open access: yesPLoS ONE, 2020
We present a fast, inexpensive and robust technique for constructing thin, optically transparent flow-cells with pump-free flow control. Using layers of glass, patterned adhesive tape and polydimethylsiloxane (PDMS) connections, we demonstrate the ...
Nicholas A W Bell, Justin E Molloy
doaj   +3 more sources

Cavitation control using passive flow control techniques [PDF]

open access: yesPhysics of Fluids, 2021
Passive flow control techniques, and particularly vortex generators have been used successfully in a broad range of aero- and hydrodynamics applications to alter the characteristics of boundary layer separation. This study aims to review how such techniques can mitigate the extent and impact of cavitation in incompressible flows.
Zaresharif, Mahshid   +3 more
openaire   +7 more sources

Passive flow control valve for protein delivery

open access: yesCogent Engineering, 2017
Passive flow control valves are usually intended to deliver or drain a fluid at a constant rate independently of pressure variations. Microfluidic devices made of a stack of two plates are considered here: the first plate comprises a flexible silicon ...
L. Cornaggia   +7 more
doaj   +3 more sources

Advances in Flow Control Methods for Pump-Stall Suppression: Passive and Active Approaches

open access: yesEnergies
This article provides a comprehensive review of key approaches to suppressing stall flow in pumps, offering insights to enhance pump performance and reliability.
Hongbo Zhao   +5 more
doaj   +2 more sources

Active and Passive Flow Control around Simplified Ground Vehicles [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2012
The aim of this work is to control the flow around ground vehicles by active or/and passive strategies. The active control is achieved by steady, pulsed or closed-loop jets located at the backof the simplified car model.
C.H Bruneau   +4 more
doaj   +2 more sources

Passive Control of Viscous Flow via Elastic Snap-Through [PDF]

open access: yesPhysical Review Letters, 2017
We demonstrate the passive control of viscous flow in a channel by using an elastic arch embedded in the flow. Depending on the fluid flux, the arch may `snap' between two states --- constricting and unconstricting --- that differ in hydraulic conductivity by up to an order of magnitude.
Gomez, Michael   +2 more
openaire   +5 more sources

Analysis and control of resonant cavity flows [PDF]

open access: yes, 2013
Recently, the trend for the internalisation of stores within an aircraft fuselage has led to a renewed interest in the field of cavity aero-acoustics.
Roberts, David
core   +7 more sources

A unifying passivity framework for network flow control [PDF]

open access: yesIEEE INFOCOM 2003. Twenty-second Annual Joint Conference of the IEEE Computer and Communications Societies (IEEE Cat. No.03CH37428), 2003
Network flow control regulates the traffic between sources and links based on congestion, and plays a critical role in ensuring satisfactory performance. In recent studies, global stability has been shown for several flow control schemes. By using a passivity approach, this paper presents a unifying framework which encompasses these stability results ...
John T. Wen, Murat Arcak
openaire   +2 more sources

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