Visualization of Vortices Generated by Flapping Wing Device by Schlieren Method
Abstract
Visualization and measurement of airflow detail structures is a difficult problem. In the past few years, high-speed DPIV has been used to capture the vortex structures on flapping robotic insect wings. Due to the inherent limitation in DPIV technique, important airflow activity in small scale vortical flow structures may be missed. In this paper, high-speed Schlieren photography was applied to vortical flow Visualization on a flapping robotic insect wings and then provided more information of vortical flow structures in detail. Based on the Schlieren image, quantified velocity vectors field was obtained by applying the variational optical flow method, which is able to be extending the potential applications to development flapping wings aircraft.
- Publication:
-
Journal of Physics Conference Series
- Pub Date:
- July 2021
- DOI:
- 10.1088/1742-6596/1985/1/012023
- Bibcode:
- 2021JPhCS1985a2023Z