A normal multimode decomposition method for stability experiments

Anatoli Tumin; Michael Amitay; Jacob Cohen; Ming De Zhou

doi:10.1063/1.869062

A normal multimode decomposition method for stability experiments

Anatoli Tumin, Michael Amitay, Jacob Cohen, Ming De Zhou

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

32 Scopus citations

Abstract

A method for decomposition of an experimental signal that contains several normal modes with a prescribed frequency, is proposed The method is based on an expansion of solutions for small-amplitude spatially growing disturbances in a biorthogonal eigenfunction system. It is shown that data of one velocity component at a given cross-stream section of the flow are in some cases, sufficient for the decomposition. The method is applied successfully to analyze small-amplitude periodic disturbances in a transitional wall-jet flow.

Original language	English (US)
Pages (from-to)	2777-2779
Number of pages	3
Journal	Physics of Fluids
Volume	8
Issue number	10
DOIs	https://doi.org/10.1063/1.869062
State	Published - Oct 1996
Externally published	Yes

ASJC Scopus subject areas

Computational Mechanics
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Fluid Flow and Transfer Processes

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abstract = "A method for decomposition of an experimental signal that contains several normal modes with a prescribed frequency, is proposed The method is based on an expansion of solutions for small-amplitude spatially growing disturbances in a biorthogonal eigenfunction system. It is shown that data of one velocity component at a given cross-stream section of the flow are in some cases, sufficient for the decomposition. The method is applied successfully to analyze small-amplitude periodic disturbances in a transitional wall-jet flow.",

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year = "1996",

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AU - Amitay, Michael

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AB - A method for decomposition of an experimental signal that contains several normal modes with a prescribed frequency, is proposed The method is based on an expansion of solutions for small-amplitude spatially growing disturbances in a biorthogonal eigenfunction system. It is shown that data of one velocity component at a given cross-stream section of the flow are in some cases, sufficient for the decomposition. The method is applied successfully to analyze small-amplitude periodic disturbances in a transitional wall-jet flow.

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A normal multimode decomposition method for stability experiments

Abstract

ASJC Scopus subject areas

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