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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The control of the displacement of a passive particle in a point vortex flow
Journal of Computational Methods in Sciences and Engineering, 2021 This work reports numerical explorations in advection of one passive tracer by point vortices living in the unbounded plane. The main objective is to find the energy-optimal displacement of one passive particle (point vortex with zero circulation) surrounded by N point vortices. The direct formulation of the corresponding control problems is presented.
Balsa, Carlos, Gama, Sílvio M.A.
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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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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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Influence of the dimple size and spacing for passive flow control in blended wing body aerodynamics: a CFD investigation [PDF]
Royal Society Open ScienceBlended wing body (BWB) aircraft have re-emerged as a research focus owing to their potential for enhanced aerodynamic efficiency and fuel economy.
Haris Ali +2 more
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Review of Improving the Performance of Horizontal Axis Wind Turbine Using Passive Flow Control [PDF]
ERU Research JournalControlling rotor blade flow separation and dynamic stall is required to improve the aerodynamic performance of horizontal axis wind turbine (HAWT) blades. Active and passive flow controls are the two basic methods for controlling the flow state. The use
Wafaa Ibrahim
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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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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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Advances in Flow Control Methods for Pump-Stall Suppression: Passive and Active Approaches
EnergiesThis 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
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AerospaceEfficient 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
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