Experimental and analytical investigation of hypersonic fluid-structure-interactions on a pitching flat plate airfoil

Yamada, Kenji, Jahn, Ingo and Buttsworth, David (2016) Experimental and analytical investigation of hypersonic fluid-structure-interactions on a pitching flat plate airfoil. Applied Mechanics and Materials, 846 157-162. doi:10.4028/www.scientific.net/AMM.846.157


Author Yamada, Kenji
Jahn, Ingo
Buttsworth, David
Title Experimental and analytical investigation of hypersonic fluid-structure-interactions on a pitching flat plate airfoil
Journal name Applied Mechanics and Materials   Check publisher's open access policy
ISSN 1662-7482
1660-9336
Publication date 2016-07
Sub-type Article (original research)
DOI 10.4028/www.scientific.net/AMM.846.157
Open Access Status Not yet assessed
Volume 846
Start page 157
End page 162
Total pages 6
Place of publication Pfaffikon, Switzerland
Publisher Scientific.Net
Collection year 2017
Language eng
Formatted abstract
Understanding the effects of unsteady flows is a critical area of hypersonic research. This paper presents a comparison of experimental results and analytical tools commonly used for the prediction of fluid structure interactions: Piston theory, Van Dyke’s theory, and Unsteady Shock Expansion theory. The investigation is carried out with a wedge-nosed flat-plate airfoil with pitching degree-of-freedom at Mach 6 flow conditions.High-speed Schlieren video is used to extract data about airfoil pitching motion and the unsteady shock structure. These data are compared to predictions from the various methods giving insight into their capability to correctly predict surface pressure and the resulting pitching motion at a reduced frequency, k=6.3×10-3. Contrary to expectations for this quasi-steady flow regime, the analysis of the shock structure shows hysteresis, indicating additional viscous interactions.
Keyword Hypersonics
Fluid structure interactions
Pitching airfoil
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
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Created: Mon, 24 Oct 2016, 12:53:18 EST by Ingo Jahn on behalf of School of Mechanical and Mining Engineering