Application of local optical flow methods to high-velocity free-surface flows: Validation and application to stepped chutes
Abstract
Tests of two local optical flow techniques (Lucas-Kanade and Farneback). Application to high-velocity air-water skimming flows above a stepped chute. Simultaneous comparison with phase-detection probe measurements. Close agreement in terms of flow patterns and void fraction. Underestimation of bubble count rate and longitudinal velocity.
- Publication:
-
Experimental Thermal and Fluid Science
- Pub Date:
- January 2018
- DOI:
- 10.1016/j.expthermflusci.2017.09.010
- Bibcode:
- 2018ETFS...90..186Z
- Keywords:
-
- Optical flow;
- Stepped spillway;
- Lucas-Kanade method;
- Farneback method;
- Air-water flows;
- Computer vision