Start Date
2018 11:55 AM
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Bercovitz, Yvan (2018). Envelope Trajectory of Water Jet Issuing From a Thin Weir Obtained by Photogrammetry. Daniel Bung, Blake Tullis, 7th IAHR International Symposium on Hydraulic Structures, Aachen, Germany, 15-18 May. doi: 10.15142/T3793R (978-0-692-13277-7).
Abstract
Today, to have a good command of the energy dissipation of a jet issuing from a weir we need to improve our knowledge of the location of the impact. This laboratory experiment applied photogrammetry to determine the envelope trajectory of a water jet coming from a thin wall weir. The fall was about 9 meters, the weir was 1 meter wide and the flow was up to 500 l/s. The trajectory of the jet was reconstituted in the three spatial dimensions using the PhotoScan software package developed by Agisoft. The exposure time for each picture was enough to make white water. Envelope trajectory was compared to classical expressions such as those of Scimeni (1937) or De Marchi (1928)
Envelope Trajectory of Water Jet Issuing From a Thin Weir Obtained by Photogrammetry
Today, to have a good command of the energy dissipation of a jet issuing from a weir we need to improve our knowledge of the location of the impact. This laboratory experiment applied photogrammetry to determine the envelope trajectory of a water jet coming from a thin wall weir. The fall was about 9 meters, the weir was 1 meter wide and the flow was up to 500 l/s. The trajectory of the jet was reconstituted in the three spatial dimensions using the PhotoScan software package developed by Agisoft. The exposure time for each picture was enough to make white water. Envelope trajectory was compared to classical expressions such as those of Scimeni (1937) or De Marchi (1928)