Study on breakdown process of the klebanoff mode in a flat plate boundary layer

Ayumu Inasawa; Seiichiro Izawa; Ao Kui Xiong; Yu Fukunishi

doi:10.1299/kikaib.71.1558

Study on breakdown process of the klebanoff mode in a flat plate boundary layer

Ayumu Inasawa, Seiichiro Izawa, Ao Kui Xiong, Yu Fukunishi

ENG - Mechanical Systems Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Breakdown process of the Klebanoff mode and origin of turbulence are experimentally investigated in detail. An acoustic excitation using a 2D roughness attached on the wall are used for T-S wave generation. Piezo-ceramic actuators are used to introduce the Klebanoff mode fluctuation. It is shown that the turbulence region starts from two locations, one is beneath the head of a A vortex and the other is the high-shear layer accompanying by the A vortex.

Original language	English
Pages (from-to)	1558-1564
Number of pages	7
Journal	Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	71
Issue number	706
DOIs	https://doi.org/10.1299/kikaib.71.1558
Publication status	Published - 2005 Jun

Keywords

Boundary Layer
Klebanoff Mode
T-S Wave
Transition
Turbulence Onset

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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abstract = "Breakdown process of the Klebanoff mode and origin of turbulence are experimentally investigated in detail. An acoustic excitation using a 2D roughness attached on the wall are used for T-S wave generation. Piezo-ceramic actuators are used to introduce the Klebanoff mode fluctuation. It is shown that the turbulence region starts from two locations, one is beneath the head of a A vortex and the other is the high-shear layer accompanying by the A vortex.",

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author = "Ayumu Inasawa and Seiichiro Izawa and Xiong, {Ao Kui} and Yu Fukunishi",

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AU - Xiong, Ao Kui

AU - Fukunishi, Yu

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AB - Breakdown process of the Klebanoff mode and origin of turbulence are experimentally investigated in detail. An acoustic excitation using a 2D roughness attached on the wall are used for T-S wave generation. Piezo-ceramic actuators are used to introduce the Klebanoff mode fluctuation. It is shown that the turbulence region starts from two locations, one is beneath the head of a A vortex and the other is the high-shear layer accompanying by the A vortex.

KW - Boundary Layer

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KW - Transition

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