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Hubert Chanson
Австралия
Добавлен 25 май 2021
Hubert Chanson is Professor of Civil Engineering at the University of Queensland. His main field of expertise is environmental fluid mechanics and hydraulic engineering, both in terms of theoretical fundamentals, physical and numerical modelling. He leads a group of 5-10 researchers, largely targeting flows around hydraulic structures, two-phase (gas-liquid & solid-liquid) free-surface flows, turbulence in steady and unsteady open channel flows, using computation, lab-scale experiments, field work and analysis. He has published two dozens of books and over 1,350 peer reviewed publications. He serves on the editorial boards of International Journal of Multiphase Flow, Flow Measurement and Instrumentation, and Environmental Fluid Mechanics, the latter of which he is currently a senior Editor. He chaired the Organisation of the 34th IAHR World Congress held in Brisbane in 2011, and co-chaired the Organisation of the 22nd Australasian Fluid Mechanics Conference held in Brisbane in 2020.
Qiantang River tidal bore at Xiasha on 23 October 2024
The Qiantang River is affected by a large tidal bore, developing from the Hangzhou Bay and propagating upstream for more than 100 km. On 23 October 2024, the propagation of the tidal bore was observed at Xiasha, at the outskirts of the city of Hangzhou. The approaching bore extended over the full breadth of the river channel and was over nearly 2.1 km wide. This video shows the approaching bore and its passage at Xiasha. A few additional photographs are included. One photograph shows a police car driving slowly ahead of the bore front to alert the public.
Acknowledgements
Prof. Dongzi PAN (ZIHE)
Zheijiang Institute of Hydraulics and Estuaries
Bibliography
CHANSON, H. (2011). "Tidal Bores, Aeg...
Acknowledgements
Prof. Dongzi PAN (ZIHE)
Zheijiang Institute of Hydraulics and Estuaries
Bibliography
CHANSON, H. (2011). "Tidal Bores, Aeg...
Просмотров: 31
Видео
Qiantang River tidal bore at Laoyanchang on 23 October 2024
Просмотров 63День назад
The Qiantang River is affected by a large tidal bore, developing from the Hangzhou Bay and propagating upstream for more than 100 km. On 23 October 2024, the propagation of the tidal bore was observed at Laoyanchang. The approaching bore extend over nearly 2.2 km and is subjected to a relatively sharp turn to the left as it propagates upstream. At the outer bend, an embankment structure was bui...
Qiantang River tidal bore at Xincang on 23 October 2024
Просмотров 78День назад
The Qiantang River is affected by a large tidal bore, developing from the Hangzhou Bay and propagating upstream for more than 100 km. Downstream of and before Xinvang, the Qiantang River bore divides into the southern bore and eastern bore. At Xincang, the southern bore impacts the old seawall and is reflected. On 23 October 2024, the tidal bore was observed at Xincang. The arrival of the bore ...
Qiantang River tidal bore at Cao River Sluice System on 22 October 2024
Просмотров 5822 дня назад
The Qiantang River is affected by a large tidal bore, developing from the Hangzhou Bay and propagating upstream for more than 100 km. On 22 October 2024, the propagation of the tidal bore pas the Cao River sluice system was observed and the impact on the gates was documented. While the initial impact of the bore on the gates was moderate, large subsequent impacts were seen caused by whelps and ...
Qiantang River tidal bore at Yanguan on 21 October 2024
Просмотров 13114 дней назад
This video shows the passage of the tidal bore of the Qiantang River at Yanguan (China) on 21 October 2024. The tidal bore was a breaking bore across the full breadth of the river channel, 2.2 km wide. Acknowledgements Prof. Dongzi PAN (ZIHE) Zheijiang Institute of Hydraulics and Estuaries Bibliography CHANSON, H. (2011). "Tidal Bores, Aegir, Eagre, Mascaret, Pororoca: Theory and Observations."...
Devil Gates Dam (TAS, Australia) in operation on 2 & 5 September 2024
Просмотров 1 тыс.14 дней назад
This video presents the operation of the spillway of Devils Gate Dam, Tasmania (Australia) at the beginning of September 2024, following some heavy rainfalls over northern Tasmania. References CHANSON, H. (2024). "Self-aeration on large dam spillways during major floods." Journal of Hydro-environment Research, IAHR, Vol. 54, pp. 26-36 (DOI: 10.1016/j.jher.2024.03.002). COLE, B.A. (2004). “Eight...
A Devil in Tasmania (2) Road trip in Tasmania in September 2024
Просмотров 150Месяц назад
This road trip in Tasmania in early September 2024 took us to 3 large hydro-power stations and 3 larges dams, with observations of spillway operations during medium to large floods. Acknowledgements Ms Ya-Hui (Karen) CHOU (Brisbane, Australia) Tasmanian Irrigation Hydro Tasmania Brett BENNETT Josh CLARK Jo MORRIS References COLE, B.A. (2004). “Eight heritage dams in Tasmania and some federal/st...
Trevallyn Dam (TAS, Australia) in operation on 4 & 7 September 2024
Просмотров 3012 месяца назад
The operation of the Trevallyn Dam spillway (Tasmania Australia) is documented on 4 & 7 September 2024, during a sizeable flood event. Completed in 1955, the 33 m high concrete gravity dam is equipped with an un-gated smooth chute spillway. The reservoir supplies a hydropower station. During floods, the spillway overflow flows into the Cataract Gorge and into the Tamar River in Launceston. Ackn...
Cyclic Instabilities at Circular Crested Weirs
Просмотров 3005 месяцев назад
The movie presents a time lapse of the cyclic overflow pattern above a half-round circular weir. The experiment was conducted at the University of Queensland, in the Hydraulics Laboratory of the School of Civil Engineering. The movie presents a sideview of the nappe overflow. Sometimes, the nappe is attached to the weir and the flow streamlines present a marked curvature, highlighted by the fre...
Bonneville dam fishway in 2016
Просмотров 695 месяцев назад
Fish pass along Powerplant No. 2 at Bonneville Dam, Oregon, USA on 30 June 2016. Installed along the Columbia River, the Bonneville dam hinders the migration of salmonids. A large fish pass system was installed and is regularly monitored. The video shows fish sheltering behind the baffle in the fish pass. At the time, the discharge in the fish pass was Q = 23 m3/s, with a mean velocity about 2....
Stepped check dam in Taiping Mountain, Ilan County, Taiwan in 2016
Просмотров 1635 месяцев назад
The movie presents some sabo structure and stepped cascade in Taiping Mountain, South-western part of Lanyang River catchment, Ilan County, Taiwan on 5 January 2016. The check dams are located along the Jioujhize River, next to hot springs. The river carries a massive amount of sediments. The two stepped check dams are equipped with steel-plate reinforced steps. The video movie presents the low...
High-speed bottom sluice flow at Three Gorges Project dam in 2004
Просмотров 1316 месяцев назад
Top view of high-speed self-aerated bottom sluice flow operation. The movie was taken from the dam crest, looking straight above the outlet. Operating head: H = 70 m, Discharge: Q = 1700 m3/s per outlet, Jet velocity: V = 35 m/s - 3 Gorges dam project (TGP) on 20 October 2004 - View from the dam crest - Movie recorded at 30 fps. Located at Yichang, Hubei province, China, the Three Gorges Projec...
Panama Canal at Miraflores Locks in 2019
Просмотров 556 месяцев назад
Large ship leaving the Panama Canal at Miraflores Locks on 31 August 2019. Ship exiting lock towards Pacific Ocean.
White waters and tumbling flow at Burdekin Falls dam outlet in 2022
Просмотров 456 месяцев назад
White waters and tumbling flow downstream of Burdekin Falls dam outlet (Australia) on 1 April 2022. At the time, The reservoir elevation was 151.98 m, the reservoir capacity was at 93.89% and the reservoir volume was 1,859,000 ML. The video movie highlights the intense free-surface turbulence, large-scale air-water eddies, spray, splashing and wave motion. The movie was recorded at 30 fps using...
Three Gorges Project dam - Trash sluice operation in 2004
Просмотров 496 месяцев назад
Three Gorges Project dam - Trash sluice operation in 2004
Noman Creek on flood on 20 May 2009 - Ridge Street MEL culvert operation
Просмотров 856 месяцев назад
Noman Creek on flood on 20 May 2009 - Ridge Street MEL culvert operation
Friction coefficients in conduits and channels. Chézy, Darcy, Gauckler, Manning, Strickler, Weisbach
Просмотров 1877 месяцев назад
Friction coefficients in conduits and channels. Chézy, Darcy, Gauckler, Manning, Strickler, Weisbach
Fluid Mechanics - When will a hinged gate tip?
Просмотров 4037 месяцев назад
Fluid Mechanics - When will a hinged gate tip?
The “weir equation” (2) Its derivation for rectangular dam & weir crest
Просмотров 4957 месяцев назад
The “weir equation” (2) Its derivation for rectangular dam & weir crest
Pressure and hydrostatics - Hydrostatic pressure distribution in a reservoir
Просмотров 1667 месяцев назад
Pressure and hydrostatics - Hydrostatic pressure distribution in a reservoir
Hydrostatic pressure force on a hinged gate
Просмотров 2837 месяцев назад
Hydrostatic pressure force on a hinged gate
The “weir equation” (1) Calculating dam and weir discharge capacity
Просмотров 4657 месяцев назад
The “weir equation” (1) Calculating dam and weir discharge capacity
Baffled apron / Baffled chute for energy dissipation - USBR Type IX dissipator
Просмотров 4648 месяцев назад
Baffled apron / Baffled chute for energy dissipation - USBR Type IX dissipator
Air entrapment in a Roman dropshaft at large flow
Просмотров 309 месяцев назад
Air entrapment in a Roman dropshaft at large flow
Air entrainment in a rectangular dropshaft at large flow
Просмотров 299 месяцев назад
Air entrainment in a rectangular dropshaft at large flow
Air entrainment in a Roman dropshaft at large flow
Просмотров 259 месяцев назад
Air entrainment in a Roman dropshaft at large flow
Hydraulic operation of Roman dropshaft for large discharge
Просмотров 199 месяцев назад
Hydraulic operation of Roman dropshaft for large discharge
Roman dropshaft operation at large flow
Просмотров 209 месяцев назад
Roman dropshaft operation at large flow
Roman dropshaft operation for intermediate flow
Просмотров 339 месяцев назад
Roman dropshaft operation for intermediate flow
Excelente!, muy buena introducción.
Thank you for the kind comment. I did a lot of work on dam break wave on dry bed, including: CHANSON, H. (2009). "Application of the Method of Characteristics to the Dam Break Wave Problem." Journal of Hydraulic Research, IAHR, Vol. 47, No. 1, pp. 41-49 (DOI: 10.3826/jhr.2009.2865) (ISSN 0022-1686). CHANSON, H. (2006). "Tsunami Surges on Dry Coastal Plains: Application of Dam Break Wave Equations." Coastal Engineering Journal, Vol. 48, No. 4, pp. 355-370 (DOI: 10.1142/S0578563406001477) (ISSN 0578-5634). CHANSON, H., JARNY, S., and COUSSOT, P. (2006). "Dam Break Wave of Thixotropic Fluid." Journal of Hydraulic Engineering, ASCE, Vol. 132, No. 3, pp. 280-293 (doi:10.1061/(ASCE)0733-9429(2006)132:3(280)) (ISSN 0733-9429). When you work on dam break wave on initially-filled channel (i.e. with water), the leading edge of the dam break wave is a bore and I have done a lot of work on the turbulence and air-water flow in turbulent bore. This is a different topic in my opinion, and I have a lot of materials on turbulent bores incl.: LENG, X., SIMON, B., KHEZRI, N., LUBIN, P., and CHANSON, H. (2018). "CFD Modelling of Tidal Bores: Development and Validation Challenges." Coastal Engineering Journal, Vol. 60, No. 4, pp. 423-436 (DOI: 10.1080/21664250.2018.1498211) (ISSN 0578-5634). REUNGOAT, D., LUBIN, P., LENG, X., and CHANSON, H. (2018). "Tidal Bore Hydrodynamics and Sediment Processes: 2010-2016 Field Observations in France." Coastal Engineering Journal, Vol. 60, No. 4, pp. 484-498 (DOI: 10.1080/21664250.2018.1529265) (ISSN 0578-5634). SHI, R., WÜTHRICH, D., and CHANSON, H. (2023). "Air-water Properties of Unsteady Breaking Bores Part 1: Novel Eulerian and Lagrangian Velocity Measurements using Intrusive and Non-intrusive Techniques." International Journal of Multiphase Flow, Vol. 159 Paper 104338, 16 pages (DOI: 10.1016/j.ijmultiphaseflow.2022.104337) (ISSN 0301-9322). SHI, R., WÜTHRICH, D., and CHANSON, H. (2023). "Air-water Properties of Unsteady Breaking Bore Part 2: Void Fraction and Bubble Statistics." International Journal of Multiphase Flow, Vol. 159, Paper 104337, 14 pages (DOI: 10.1016/j.ijmultiphaseflow.2022.104337) (ISSN 0301-9322). More generally, you will find a lot of peer-reviewed works at: staff.civil.uq.edu.au/h.chanson/reprints.html to complement the RUclips channel. The latter was mostly developed for undergraduate students.