Abstract
In this experimental study, the effect of three-dimensional shock control bumps (SCB) on impinging-reflecting shock wave/boundary layer interactions (SWBLI) is investigated as a passive control method. The aim is to develop an understanding of the influence of such devices on the interaction structure by studying the position of the bump with respect to the shock-impingement location. The experiments were conducted in the ST-15 wind-tunnel at the Delft University of Technology for fully developed turbulent boundary layer conditions with Mach number of 2. The effectiveness was assessed by examining the size of the separated flow region, as well as the downstream boundary layer velocity profile. Stereo-PIV was employed as the main diagnostic method to characterise the three-dimensional flow field. Additionally, the effect of shock impingement location on the unsteady interaction dynamics was examined by analyzing the separation size and reflected shock foot position in the instantaneous flow. The investigation revealed the significance of the shock impingement location in terms of control effectiveness. Nevertheless, placement of the bump in the interaction region substantially decreased the probability of flow separation even in off-design conditions when compared to the uncontrolled interaction.
Original language | English |
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Title of host publication | AIAA Aviation Forum and ASCEND 2024 |
Publisher | American Institute of Aeronautics and Astronautics Inc. (AIAA) |
Number of pages | 15 |
ISBN (Electronic) | 978-1-62410-716-0 |
DOIs | |
Publication status | Published - 2024 |
Event | AIAA Aviation Forum and ASCEND 2024 - Las Vegas, United States Duration: 29 Jul 2024 → 2 Aug 2024 |
Conference
Conference | AIAA Aviation Forum and ASCEND 2024 |
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Abbreviated title | ASCEND 2024 |
Country/Territory | United States |
City | Las Vegas |
Period | 29/07/24 → 2/08/24 |
Bibliographical note
Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-careOtherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.