Results 11 to 20 of about 811,380 (302)
Numerical Study of Cylinder Drag Coefficient Reduction Using Passive Flow Control [PDF]
مهندسی مکانیک شریف, 2022 In this study, the cylinder drag coefficient is reduced by using passive flow control. Installing a flat plate in two heights and different longitudinal distances in upstream flow increases the upstream flow momentum of the cylinder, leading to the ...
S. sh. Sadeghi, N. Nabatian
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Control of Turbulent Flow over a Circular Cylinder Using Tabs
Mathematics, 2023 In this study, we investigate tabs applied to turbulent flow over a circular cylinder for the reductions of the mean drag and lift fluctuations. Tabs are small and thin passive devices attached to the upper and lower surfaces of a circular cylinder near ...
Junyoung Seo, Jinhyeok Yun, Jungil Lee
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Numerical Study of Combined Drag Reduction Bases on Vortex Generators and Riblets for the Ahmed Body using IDDES Methodology [PDF]
Journal of Applied Fluid Mechanics, 2022 The flow fields around vehicle drag reduction devices are three-dimensional, complicated, and unsteady. Meanwhile, the small scale of the drag reduction device brings more challenges to the simulation. An Improved Delayed Detached Eddy Simulation (IDDES)
X. Yang, Y. Hu, Z. Gong, J. Jian, Z. Liu
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A unifying passivity framework for network flow control [PDF]
IEEE 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 ...
J.T. Wen, M. Arcak
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CFD Investigation of a Hybrid Wells Turbine with Passive Flow Control
Energies, 2023 In the past decade, there has been renewed interest in wave energy harvesting utilizing oscillating water columns (OWC), one of the most well-studied wave energy harnessing technologies.
Mohammad Nasim Uddin +2 more
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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
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Passive Control of Viscous Flow via Elastic Snap-Through [PDF]
Physical 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
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Passive Transonic Shock Control on Bump Flow for Wing Buffet Suppression
Aerospace, 2023 Since modern transport aircraft cruise at transonic speeds, shock buffet alleviation is one indispensable challenge that civil transport research needs to be addressed.
Davide Di Pasquale, Simon Prince
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Biomimetic bluff body drag reduction by self-adaptive porous flaps [PDF]
, 2011 The performances of an original passive control system based on a biomimetic approach are assessed by investigating the flow over a bluff-body. This control device consists in a couple of flaps made from the combination of a rigid plastic skeleton coated
Alben +29 more
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Thermal performance of a boiling-driven heat spreader using passive flow control
Case Studies in Thermal Engineering, 2023 This study investigates a wickless two-phase heat spreader with boiling heat transfer (boiling-driven heat spreaders) for the thermal management of hot spots with a high heat flux of more than 200 W/cm2. Thermal management studies are performed using two
Hyunmuk Lim +4 more
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