A parametric investigation of jet and vortex actuator

Sertac Cadirci; Hasan Gunes

doi:10.1115/ESDA2014-20411

A parametric investigation of jet and vortex actuator

Sertac Cadirci, Hasan Gunes

Department of Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The Jet and Vortex Actuator (JaVA) is a zero -net-mass flux device for active flow control. In this numerical study, we present a parametric study of JaVA in quiescent water and obtain time-averaged flow and vorticity fields. We systematically investigate the effect of the governing parameters that affect on the JaVA -induced flow characteristics. Three jet Reynolds numbers are investigated in detail; Re_J = 68, 150 and 250 and for each jet-Reynolds number, four different wide-slot to plate width ratios are considered: g_w = 0.0166, 0.0338, 0.066 and 0.10. In all cases, the scaled amplitude is kept at S_a = 0.15 and 0.30 so that a total of 24 different simulations are investigated. JaVA-induced flow types are classified in five groups: wall-jet, vertical-oblique jet, chaotic jet, weak jet and vortex mode. Based on the governing parameters (S_a, Re_J and g_w) all these flow types have been identified the jet-momentums are calculated from phaseaveraged jet velocities obtained from numerical modeling results and compared to each other. It is found that generally the vortex mode transports the highest momentum flux followed by a chaotic jet.

Original language	English
Title of host publication	Dynamics, Vibration and Control; Energy; Fluids Engineering; Micro and Nano Manufacturing
Publisher	Web Portal ASME (American Society of Mechanical Engineers)
ISBN (Electronic)	9780791845844
DOIs	https://doi.org/10.1115/ESDA2014-20411
Publication status	Published - 2014
Event	ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2014 - Copenhagen, Denmark Duration: 25 Jul 2014 → 27 Jul 2014

Publication series

Name	ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2014
Volume	2

Conference

Conference	ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2014
Country/Territory	Denmark
City	Copenhagen
Period	25/07/14 → 27/07/14

Bibliographical note

Publisher Copyright:
Copyright © 2014 by ASME.

Keywords

Active Flow Control
CFD Simulation
Jet and Vortex Actuator (JaVA)

Access to Document

10.1115/ESDA2014-20411

Cite this

Cadirci, S., & Gunes, H. (2014). A parametric investigation of jet and vortex actuator. In Dynamics, Vibration and Control; Energy; Fluids Engineering; Micro and Nano Manufacturing (ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2014; Vol. 2). Web Portal ASME (American Society of Mechanical Engineers). https://doi.org/10.1115/ESDA2014-20411

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abstract = "The Jet and Vortex Actuator (JaVA) is a zero -net-mass flux device for active flow control. In this numerical study, we present a parametric study of JaVA in quiescent water and obtain time-averaged flow and vorticity fields. We systematically investigate the effect of the governing parameters that affect on the JaVA -induced flow characteristics. Three jet Reynolds numbers are investigated in detail; ReJ = 68, 150 and 250 and for each jet-Reynolds number, four different wide-slot to plate width ratios are considered: gw = 0.0166, 0.0338, 0.066 and 0.10. In all cases, the scaled amplitude is kept at Sa = 0.15 and 0.30 so that a total of 24 different simulations are investigated. JaVA-induced flow types are classified in five groups: wall-jet, vertical-oblique jet, chaotic jet, weak jet and vortex mode. Based on the governing parameters (Sa, ReJ and gw) all these flow types have been identified the jet-momentums are calculated from phaseaveraged jet velocities obtained from numerical modeling results and compared to each other. It is found that generally the vortex mode transports the highest momentum flux followed by a chaotic jet.",

keywords = "Active Flow Control, CFD Simulation, Jet and Vortex Actuator (JaVA)",

author = "Sertac Cadirci and Hasan Gunes",

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doi = "10.1115/ESDA2014-20411",

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Cadirci, S & Gunes, H 2014, A parametric investigation of jet and vortex actuator. in Dynamics, Vibration and Control; Energy; Fluids Engineering; Micro and Nano Manufacturing. ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2014, vol. 2, Web Portal ASME (American Society of Mechanical Engineers), ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2014, Copenhagen, Denmark, 25/07/14. https://doi.org/10.1115/ESDA2014-20411

A parametric investigation of jet and vortex actuator. / Cadirci, Sertac ; Gunes, Hasan.
Dynamics, Vibration and Control; Energy; Fluids Engineering; Micro and Nano Manufacturing. Web Portal ASME (American Society of Mechanical Engineers), 2014. (ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2014; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - The Jet and Vortex Actuator (JaVA) is a zero -net-mass flux device for active flow control. In this numerical study, we present a parametric study of JaVA in quiescent water and obtain time-averaged flow and vorticity fields. We systematically investigate the effect of the governing parameters that affect on the JaVA -induced flow characteristics. Three jet Reynolds numbers are investigated in detail; ReJ = 68, 150 and 250 and for each jet-Reynolds number, four different wide-slot to plate width ratios are considered: gw = 0.0166, 0.0338, 0.066 and 0.10. In all cases, the scaled amplitude is kept at Sa = 0.15 and 0.30 so that a total of 24 different simulations are investigated. JaVA-induced flow types are classified in five groups: wall-jet, vertical-oblique jet, chaotic jet, weak jet and vortex mode. Based on the governing parameters (Sa, ReJ and gw) all these flow types have been identified the jet-momentums are calculated from phaseaveraged jet velocities obtained from numerical modeling results and compared to each other. It is found that generally the vortex mode transports the highest momentum flux followed by a chaotic jet.

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ER -

A parametric investigation of jet and vortex actuator

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