Image Proccessing of Flows in a Trench Using a High-Speed Video Camera and Numerical Analysis by LES
Year: 1993
Type: article
Abstract: Open channel flows in a trench exhibit complex turbulent flow patterns such as separation, reverse flow, or dead water zone. To understand the flow structures, an image processing method is applied to the visualized vertical flow section including a trench. In this research, the evolution of spatial velocity distributions can be obtained at a high sampling rate, 125Hz, by using a high-speed video camera. The results are compared with the numerical analysis by the large eddy simulation (LES) for the same flow condition. Satisfactory agreements between image and numerical analyses are obtained for the flow structure.
DOI: 10.2208/prohe.37.481
Authors: Ichiro FUJITA, Tohru KANDA, Saburo KOMURA, Yoshihiro YANO, Takamitu MORITA
Institutions: Gifu University, Kobe University
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2324315433