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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The flow structure behind vortex generators embedded in a decelerating turbulent boundary layer [PDF]
, 2009 The objective of the present work is to analyse the behaviour of a turbulent decelerating boundary layer under the effect of both passive and active jets vortex generators (VGs).
Braud, Caroline +3 more
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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 +3 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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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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An improved passive vortex generator model for flow separation control
, 2010 Modeling arrays of passive vortex generators (VGs) pairs located in the fully turbulent boundary layer of a two-dimensional flat plate, generating streamwise counterrotating vortex structures is investigated. Usually, a sound computational fluid dynamics
Johansson, Arne V., +5 more
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Flutter prediction, suppression and control in aircraft composite wings as a design prerequisite: a survey [PDF]
, 2007 Emergence of flutter compromises not only the long-term durability of the wing structure, but also the operational safety, flight performance and energy efficiency of the aircraft. Effectual means of flutter prevention are, therefore, mandatory in the
Njuguna, James A. K.
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Passive solar-energy air-heating wall panels [PDF]
, 1987 The development of products which enable passive solar-energy air-heating to be integrated into the heating strategies of public, commercial and industrial buildings is described. These buildings are, in general, only occupied significantly during the
Hobday, R. A.
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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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