Results 1 to 10 of about 165,237 (259)

Microfluidic flow-cell with passive flow control for microscopy applications. [PDF]

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   +4 more sources

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   +6 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

Engineered bio-inspired coating for passive flow control. [PDF]

open access: yesProc Natl Acad Sci U S A, 2018
Significance Flow separation on moving bodies has a negative effect on energy efficiency. Reducing recirculating regions is key in the design of energy-efficient systems. Efficient design decreases fuel consumption and pollutant emissions, including the systems’ carbon footprint. The engineered bio-inspired coating presented here aims
Bocanegra Evans H   +6 more
europepmc   +4 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   +3 more sources

Passive Control Measures of Wind Flow around Tall Buildings

open access: yesBuildings
The growth and diversification of tall buildings demands higher performance standards that encompass serviceability and resilience. In this respect, the control of air flow around tall buildings poses challenges to minimising the energy that could induce
Mario A. Aguirre-López   +2 more
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   +5 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   +1 more source

Passive Control of Base Pressure: A Review

open access: yesApplied Sciences, 2021
In the present world, passive control finds application in various areas like flow over blunt projectiles, missiles, supersonic parallel diffusers (for cruise correction), the engine of jets, static testbeds of rockets, the ports of internal combustion ...
Ambareen Khan   +2 more
doaj   +1 more source

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