Results 31 to 40 of about 12,590,474 (284)

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

Energies
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, Xiangkai Zhou, Long Meng, Xuejin Zhu, Chengqi Mou, Peijian Zhou   +5 more
doaj   +1 more source

Effect of Passive Flow Control Devices on Base Pressure for Mach Numbers Between 0.5 and 1.4

, 2022
Experimental studies are carried out on an axisymmetric cylindrical base body for six freestream Mach numbers between 0.54 and 1.41. Unsteady pressure is measured on the base surface using high-frequency response Kulite pressure transducers.
Sri Raghu, R, Chutkey, Kiran, Murugan, KN, Verma, SB   +3 more
core   +1 more source

Enhancing Flow Separation Control Using Hybrid Passive and Active Actuators in a Matrix Configuration

Aerospace
Efficient control of flow separation holds significant economic promise. This study investigates flow separation mitigation using an experimental platform featuring a combination of passive and active actuators arranged in a matrix configuration.
Songqi Li, Ping Zhang
doaj   +1 more source

Numerical modelling and passive flow control using porous media [PDF]

Computers & Fluids, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mortazavi, Iraj, Bruneau, Charles-Henri
openaire   +4 more sources

Bridging the Loneliness Gap: Depression, Connectivity, and Isolation in Pediatric Oncology Patients and Their Peers

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld, Scott H. Maurer, Michelle D. Watkinson, John Nury, Elise Barberis, Molly C. Mack   +5 more
wiley   +1 more source

Passivity-based output-feedback control of turbulent channel flow [PDF]

Automatica, 2016
This paper describes a robust linear time-invariant output-feedback control strategy to reduce turbulent fluctuations, and therefore skin-friction drag, in wall-bounded turbulent fluid flows, that nonetheless gives performance guarantees in the nonlinear turbulent regime.
Peter H. Heins, Bryn Ll. Jones, Ati S. Sharma   +2 more
openaire   +5 more sources

474: lighting and thermal performance of innovative shading devices: new insights into their aesthetics and control in a Mediterranean climate [PDF]

, 2008
With a view towards minimising energy demand for cooling and artificial lighting in buildings, this paper evaluates innovative shading devices and how they can balance a generous degree of control mastering seasonal natural light with thermal gains in a ...
Passive & Low Energy Architecture (PLEA), Calleja, Herman, Buhagiar, Vincent, 25th Conference on Passive and Low Energy Architecture   +3 more
core  

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Review of Passive Flow Control Methods for Compressor Linear Cascades

Applied Sciences
This paper reviews the evolution of flow control methods for bladed linear cascades, focusing on passive techniques like riblets, grooves, vortex generators (VGs), and blade slots, which have proven effective in reducing drag, suppressing flow separation,
Oana Dumitrescu, Emilia-Georgiana Prisăcariu, Valeriu Drăgan   +2 more
doaj   +1 more source

Comparative efficacy of passive and mechanical fan-pad cooling system for microclimate modification and welfare in broiler production

Indian Journal of Animal Sciences, 2016
Efficacy of passive cooling vis-à-vis mechanical fan-pad cooling system was assessed for microclimate modification to alleviate heat stress and improving growth performance and welfare of broilers. Cooling treatments comprised of Tc (control without any
S S CHIB, A SHARMA, Y SINGH, A P S SETHI, A L SAINI, C SINGH   +5 more
doaj   +1 more source