Abstract
This study investigates the turbulent/non-turbulent interface (TNTI) in self-similar turbulent axisymmetric jet flows, focusing on a novel approach named ’move with the flow’ where the image acquisition is space-based rather than time-based. Experiments were conducted at three different Reynolds numbers (9000, 12000, and 31000), utilizing particle image velocimetry (PIV) and laser-induced fluorescence (LIF) techniques. The core of this research was developing a traverse system specifically designed to follow the evolving flow structures at the TNTI synchronously. We succeeded in tracking large-scale events in TNTI from creation to dissolution.
Original language | English |
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Title of host publication | Proceedings of the 21st International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics |
Publisher | LISBON Simposia |
Number of pages | 5 |
ISBN (Print) | 978-989-53637-1-1 |
DOIs | |
Publication status | Published - 2024 |
Event | 21st International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics - Lisbon, Portugal Duration: 8 Jul 2024 → 11 Jul 2024 |
Conference
Conference | 21st International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics |
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Country/Territory | Portugal |
City | Lisbon |
Period | 8/07/24 → 11/07/24 |
Keywords
- turbulent/non-turbulent interface (TNTI)
- flow structures
- PIV
- LIF
- entrainment