Impinging Shock Wave Boundary Layer Interactions Control With Shock Control Bumps

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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 languageEnglish
Title of host publicationAIAA Aviation Forum and ASCEND 2024
PublisherAmerican Institute of Aeronautics and Astronautics Inc. (AIAA)
Number of pages15
ISBN (Electronic)978-1-62410-716-0
DOIs
Publication statusPublished - 2024
EventAIAA Aviation Forum and ASCEND 2024 - Las Vegas, United States
Duration: 29 Jul 20242 Aug 2024

Conference

ConferenceAIAA Aviation Forum and ASCEND 2024
Abbreviated titleASCEND 2024
Country/TerritoryUnited States
CityLas Vegas
Period29/07/242/08/24

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-care
Otherwise 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.

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