Fluidic injection scenarios for shock pattern manipulation in exhausts
Accepted version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Semlitsch, Bernhard https://orcid.org/0000-0001-7715-863X
Mihǎescu, M
Abstract
Screening numerically internal fluidic injection scenarios for the manipulation of the double diamond shock pattern in convergent-divergent nozzle exhausts, we demonstrate the individual importance of design parameters. We find that the evolving shock pattern is sensitive to the injection location, while the persistence of the induced counterrotating vortex pairs is primarily governed by the injection pressure. Injection close to the nozzle exit generates secondary vortical structures amplifying the fluctuations in the nozzle vicinity.
Description
Keywords
4012 Fluid Mechanics and Thermal Engineering, 40 Engineering
Journal Title
AIAA Journal
Conference Name
Journal ISSN
0001-1452
1533-385X
1533-385X
Volume Title
56
Publisher
American Institute of Aeronautics and Astronautics (AIAA)