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Wartemann, Viola and Lüdeke, Heinrich and Willems, Sebastian and Gülhan, Ali (2011) Stability analyses and validation of a porous surface boundary condition by hypersonic experiments on a cone model. 7th Aerothermodynamics Symposium, 2011-05-09 - 2011-05-12, Brugge, Belgien. ISBN 978-92-9221-256-8. ISSN 1609-042X.
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Abstract
The damping of the acoustic second mode instability by passive porous surfaces is shown by using a blunt 3◦ half-angle cone model. Second modes are investigated on a smooth cone and a porous cone model with micropores by linear stability theory (LST). The numerical results are compared successfully with wind tunnel measurements to validate the integrated porous wall boundary condition of the stability code NOLOT. In addition the influence of small deviations in free stream conditions, wall temperature and pore depth or radius on the Mack modes are investigated.
| Item URL in elib: | https://elib.dlr.de/71631/ | ||||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Paper) | ||||||||||||||||||||
| Title: | Stability analyses and validation of a porous surface boundary condition by hypersonic experiments on a cone model | ||||||||||||||||||||
| Authors: |
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| Date: | May 2011 | ||||||||||||||||||||
| Refereed publication: | No | ||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||
| ISSN: | 1609-042X | ||||||||||||||||||||
| ISBN: | 978-92-9221-256-8 | ||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||
| Keywords: | Porous surfaces, Mack mode damping, boundary layer transition, linear stability theory - LST, NOLOT, cone experiments | ||||||||||||||||||||
| Event Title: | 7th Aerothermodynamics Symposium | ||||||||||||||||||||
| Event Location: | Brugge, Belgien | ||||||||||||||||||||
| Event Type: | international Conference | ||||||||||||||||||||
| Event Start Date: | 9 May 2011 | ||||||||||||||||||||
| Event End Date: | 12 May 2011 | ||||||||||||||||||||
| Organizer: | ESA | ||||||||||||||||||||
| 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 - Projekt IMENS-3C (old) | ||||||||||||||||||||
| Location: | Braunschweig | ||||||||||||||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Spacecraft | ||||||||||||||||||||
| Deposited By: | Wartemann, Viola | ||||||||||||||||||||
| Deposited On: | 17 Nov 2011 09:03 | ||||||||||||||||||||
| Last Modified: | 24 Apr 2024 19:37 |
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