DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Experiments on aerothermoelastic fluid-structure interaction in hypersonic flow

Daub, Dennis and Willems, Sebastian and Gülhan, Ali (2022) Experiments on aerothermoelastic fluid-structure interaction in hypersonic flow. Journal of Sound and Vibration, 531. Elsevier. doi: 10.1016/j.jsv.2021.116714. ISSN 0022-460X.

[img] PDF - Published version

Official URL: https://www.sciencedirect.com/science/article/pii/S0022460X21007161


Aerothermoelastic fluid-structure interaction (FSI) is a crucial problem in the design of supersonic and hypersonic vehicles, but modeling capabilities are in many cases quite limited. Insufficient treatment of FSI can limit design options or lead to damage or loss of vehicles. To improve understanding of such problems, we conducted FSI experiments with thin panels in hypersonic flow in the hypersonic wind tunnel H2K at DLR, Cologne, where both thermal and pressure-driven effects can be observed. Both cases with and without turbulent shock-wave/boundary-layer interaction (SWBLI) were considered. We obtained severe dynamic effects which led to the failure of the thinner panel. The results show a strong dependency of the dynamics of the coupled system on small temperature changes. Furthermore, we demonstrated that a large incident shock angle facilitates flutter in cases where it would not occur without incident shock. Detailed reference experiments regarding aerothermal heating, wall pressure and dynamic properties of the flow field were conducted using a rigid structure. This extends the very limited experimental data base on FSI in hypersonic flow serving as reference for modeling and preparation of new experiments.

Item URL in elib:https://elib.dlr.de/186741/
Document Type:Article
Title:Experiments on aerothermoelastic fluid-structure interaction in hypersonic flow
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Daub, DennisUNSPECIFIEDhttps://orcid.org/0000-0002-6030-698XUNSPECIFIED
Willems, SebastianUNSPECIFIEDhttps://orcid.org/0000-0002-5576-7829UNSPECIFIED
Date:4 August 2022
Journal or Publication Title:Journal of Sound and Vibration
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Keywords:FSI, Fluid-Structure Interaction, Flutter, SWBLI, Shock-wave/Boundary-layer Interaction, Hypersonic Flow, Aerothermal Heating, Aerothermoelastic, Wind Tunnel Experiment, H2K
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Reusable Space Systems and Propulsion Technology
Location: Köln-Porz
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Supersonic and Hypersonic Technology
Deposited By: Daub, Dennis
Deposited On:22 Nov 2022 09:32
Last Modified:28 Jun 2023 13:15

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.