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Blade Design with Passive Flow Control Technologies
, 2020 This chapter focuses on the application of passive flow control technologies to wind turbine blades. The motivation of using these technologies is always an enhancement of the wind turbine performance (increase of power production, load reduction, noise reduction, etc.) in comparison to the standard blade.
González-Salcedo, Álvaro +6 more
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Passive flow control on Ahmed body by rear linking tunnels
Journal of Wind Engineering and Industrial Aerodynamics, 2020 This paper concentrates on the interaction of a car body with the surrounding airflow, in order to provide small changes for reducing vehicle fuel consumption by reducing drag.
Paolo Schito, Mahmoud Mani
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Passive control of backstep flow
Experimental Thermal and Fluid Science, 1998Abstract The passive control of turbulent flow downstream of a backward-facing step using a permeable reattachment surface is described. An impermeable reattachment surface leads to the upstream convection of rotational fluid and pressure disturbances which is absent when a permeable surface is used.
A.F Heenan, J.F Morrison
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Current study on active flow control and passive flow control
Theoretical and Natural Science, 2023Flow control is a very important research direction in the field of fluid dynamics and one of the important research difficulties in the field of aerospace in the 21st century. This study aims to explore the principles and applications of active flow control and passive flow control, and analyze their practical applications in different fields.
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Passive Control of Transonic Cavity Flow
Journal of Fluids Engineering, 2008Abstract Open cavities at transonic speeds can result in acoustic resonant flow behavior with fluctuating pressure levels of sufficient intensity to cause significant damage to internal stores and surrounding structures. Extensive research in this field has produced numerous cavity flow control techniques, the more effective of which may
David G. MacManus, Diane S. Doran
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Passive Control of Cavity Flows
2013Journal Aerospace Lab, Issue 6, June 2013; ISSN: 2107 ...
Yamouni, S. +3 more
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Flow Seperation and Passive Flow Control on E387 Airfoil
54th AIAA Aerospace Sciences Meeting, 2016The behavior of a MVG vane at three different design angles was simulated with LES on an Eppler e387 airfoil that was suffering flow separation. The e387 airfoil was placed at an angle of attack of 12 degrees and at Reynolds number of 200,000 based on the chord length. Different parameters of the generated vortex from the MVG were analyzed to study the
Andrew Heffron +2 more
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Passive flow control of bileaflet mechanical heart valve leakage flow
Journal of Biomechanics, 2008Blood damage and platelet activation are inherent problems with present day mechanical heart valve designs. We investigate the approach of passive flow control applied to bileaflet mechanical heart valve (BMHV) flows as a means of optimizing leakage flow hemodynamics at length scales relevant to blood damage and platelet activation.
Lakshmi P, Dasi +3 more
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Passive Control of Pressure Fluctuations Generated by Separated Flow
AIAA Journal, 1996Measurements of wall-pressure fluctuations have been made in the flow behind a backward-facing step, with a permeable reattachment surface Different configurations are tried, the most successful producing a reduction in peak rms pressure fluctuation of about 13% and a reduction in drag of about 9%.
A. F. Heenan, J. F. Morrison
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Passive Control of Flow Induced Vibrations by Splitter Blades
Volume 2: Combustion and Fuels; Oil and Gas Applications; Cycle Innovations; Heat Transfer; Electric Power; Industrial and Cogeneration; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; IGTI Scholar Award, 1993Splitter blades as a passive control technique for flow induced vibrations is investigated by developing an unsteady aerodynamic model to predict the effect of incorporating splitter blades into the design of an axial flow blade row operating in an incompressible flow field.
H. W. D. Chiang, S. Fleeter
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