Water Tunnel Experimental Research on Vortex of Delta Wing
- 10.2991/icmmita-16.2016.212How to use a DOI?
- delta wing; high angle of attack; airflow separate; detached vortices
Flight or maneuvering at high angle of attack is one of the most important parts for the modern fighters. When the angle of attack is within the usual range, the aerodynamic characteristics have a linear relationship with the dynamic of aircraft. With the increase of angle of attack, the airflow separation developed and nonlinear traits of the aerodynamic force and moment occur. Vortex can be generated in front of the nose of the aircraft or leading edge of the wing. Furthermore, the change and break down of the vortices are the main cause for the aerodynamic characteristics at high angle of attack. Study on the structure of the flow field and traits of the vortices at high angle of attack are of great significance to understand the fighter's performance. Through water tunnel experiment, staining flow visualization techniques are used to observe the generation and development of vortex on delta wing. At the same time, for the purpose of studying the effect of sideslip angle, experiments are carried on by adjusting the sideslip angle. It confirms the sideslip makes the flow pattern asymmetrical and the vortex break up at smaller angle of attack.
- © 2017, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Song Li AU - Wei He AU - Kai Luo AU - Limin Song AU - Yuankai Li AU - Jicheng Zhang PY - 2017/01 DA - 2017/01 TI - Water Tunnel Experimental Research on Vortex of Delta Wing BT - Proceedings of the 2016 4th International Conference on Machinery, Materials and Information Technology Applications PB - Atlantis Press SN - 2352-538X UR - https://doi.org/10.2991/icmmita-16.2016.212 DO - 10.2991/icmmita-16.2016.212 ID - Li2017/01 ER -