Use of low-dimensional methods for wake flowfield estimation from dynamic strain

Ryan F. Schmit; Mark N. Glauser

doi:10.2514/1.1722

Use of low-dimensional methods for wake flowfield estimation from dynamic strain

Ryan F. Schmit, Mark N. Glauser

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

12 Scopus citations

Abstract

A low-dimensional tool for flow-structure interaction problems based on proper orthogonal decomposition (POD) and modified linear stochastic estimation (mLSE) was analyzed. It was found that the method utilized the dynamic strain measurements from the wing to estimate the POD expansion coefficient from which an estimation of the velocity in the wake can be obtained. The statistical quantities for the mean flow-field showed that the wing tip vortex dominated. Results show that an estimation of the wake flowfield with the lower POD modes provides a reasonable estimation of the wake flowfield.

Original language	English (US)
Pages (from-to)	1133-1136
Number of pages	4
Journal	AIAA journal
Volume	43
Issue number	5
DOIs	https://doi.org/10.2514/1.1722
State	Published - May 2005

ASJC Scopus subject areas

Aerospace Engineering

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10.2514/1.1722

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abstract = "A low-dimensional tool for flow-structure interaction problems based on proper orthogonal decomposition (POD) and modified linear stochastic estimation (mLSE) was analyzed. It was found that the method utilized the dynamic strain measurements from the wing to estimate the POD expansion coefficient from which an estimation of the velocity in the wake can be obtained. The statistical quantities for the mean flow-field showed that the wing tip vortex dominated. Results show that an estimation of the wake flowfield with the lower POD modes provides a reasonable estimation of the wake flowfield.",

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AU - Glauser, Mark N.

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AB - A low-dimensional tool for flow-structure interaction problems based on proper orthogonal decomposition (POD) and modified linear stochastic estimation (mLSE) was analyzed. It was found that the method utilized the dynamic strain measurements from the wing to estimate the POD expansion coefficient from which an estimation of the velocity in the wake can be obtained. The statistical quantities for the mean flow-field showed that the wing tip vortex dominated. Results show that an estimation of the wake flowfield with the lower POD modes provides a reasonable estimation of the wake flowfield.

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Use of low-dimensional methods for wake flowfield estimation from dynamic strain

Abstract

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