Suction and oscillatory blowing actuator

Gilad Arwatz; Ilan Fono; Avi Seifert

doi:10.1007/978-1-4020-6858-4_4

Suction and oscillatory blowing actuator

Gilad Arwatz^*, Ilan Fono, Avi Seifert

^*Corresponding author for this work

School of Mechanical Engineering

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

Abstract

Enhancing the ability to control flows in different configurations and flow conditions can lead to improved systems. Certain active flow control (AFC) actuators are efficient at low Mach numbers but the momentum and vorticity they provide limits the utilization to low speeds. At higher Mach numbers, robust, unsteady, efficient and practical fluidic actuators are a critical, largely missing, enabling technology in any AFC system. A new actuator concept, based on the combination of steady suction and oscillatory-blowing (SaOB) is presented. The actuator can achieve near-sonic speeds at about 1 kHz. It has no moving parts and therefore is expected to have superior efficiency and reliability. The operation principle of the SaOB actuator is presented along with two predictive computational models and their experimental validation.

Original language	English
Title of host publication	IUTAM Symposium on Flow Control and MEMS - Proceedings of the IUTAM Symposium
Pages	33-44
Number of pages	12
DOIs	https://doi.org/10.1007/978-1-4020-6858-4_4
State	Published - 2008
Event	IUTAM Symposium on Flow Control and MEMS - London, United Kingdom Duration: 19 Sep 2006 → 22 Sep 2006

Publication series

Name	Solid Mechanics and its Applications
Volume	7
ISSN (Print)	1875-3507

Conference

Conference	IUTAM Symposium on Flow Control and MEMS
Country/Territory	United Kingdom
City	London
Period	19/09/06 → 22/09/06

Keywords

Actuator
Bi-stable
Ejector
Flow control
Switching valve

Access to Document

10.1007/978-1-4020-6858-4_4

Cite this

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title = "Suction and oscillatory blowing actuator",

abstract = "Enhancing the ability to control flows in different configurations and flow conditions can lead to improved systems. Certain active flow control (AFC) actuators are efficient at low Mach numbers but the momentum and vorticity they provide limits the utilization to low speeds. At higher Mach numbers, robust, unsteady, efficient and practical fluidic actuators are a critical, largely missing, enabling technology in any AFC system. A new actuator concept, based on the combination of steady suction and oscillatory-blowing (SaOB) is presented. The actuator can achieve near-sonic speeds at about 1 kHz. It has no moving parts and therefore is expected to have superior efficiency and reliability. The operation principle of the SaOB actuator is presented along with two predictive computational models and their experimental validation.",

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AU - Fono, Ilan

AU - Seifert, Avi

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AB - Enhancing the ability to control flows in different configurations and flow conditions can lead to improved systems. Certain active flow control (AFC) actuators are efficient at low Mach numbers but the momentum and vorticity they provide limits the utilization to low speeds. At higher Mach numbers, robust, unsteady, efficient and practical fluidic actuators are a critical, largely missing, enabling technology in any AFC system. A new actuator concept, based on the combination of steady suction and oscillatory-blowing (SaOB) is presented. The actuator can achieve near-sonic speeds at about 1 kHz. It has no moving parts and therefore is expected to have superior efficiency and reliability. The operation principle of the SaOB actuator is presented along with two predictive computational models and their experimental validation.

KW - Actuator

KW - Bi-stable

KW - Ejector

KW - Flow control

KW - Switching valve

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Suction and oscillatory blowing actuator

Abstract

Publication series

Conference

Keywords

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