Proceedings of the 2016 4th International Conference on Machinery, Materials and Information Technology Applications

Water Tunnel Experimental Research on Vortex of Delta Wing

Authors
Song Li, Wei He, Kai Luo, Limin Song, Yuankai Li, Jicheng Zhang
Corresponding Author
Song Li
Available Online January 2017.
DOI
https://doi.org/10.2991/icmmita-16.2016.212How to use a DOI?
Keywords
delta wing; high angle of attack; airflow separate; detached vortices
Abstract
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.
Open Access
This is an open access article distributed under the CC BY-NC license.

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Proceedings
2016 4th International Conference on Machinery, Materials and Information Technology Applications
Part of series
Advances in Computer Science Research
Publication Date
January 2017
ISBN
978-94-6252-285-5
ISSN
2352-538X
DOI
https://doi.org/10.2991/icmmita-16.2016.212How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

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  - 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  - https://doi.org/10.2991/icmmita-16.2016.212
ID  - Li2017/01
ER  -