Asymmetric Plane Flow with Application to Ice Jams

Tatinclaux, Jean‐Claude; Göğüş, Mustafa

doi:10.1061/(asce)0733-9429(1983)109:11(1540)

Cited by 15 publications

(5 citation statements)

References 9 publications

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“…If these roughness have different values then maximum velocity will move towards surface of the smaller roughness, which exhibits smaller flow resistance. We can distinguish average flow velocities in the ice and bottom region (Tatinclaux and Gogus 1983). The distribution of hydrostatic pressures, shear stresses and velocity distribution is shown in Fig.…”

Section: Roughness Of the Underside Of Ice Covermentioning

confidence: 98%

The Lower Vistula and Its Ice Problems

Majewski

2021

Archives of Hydro-Engineering and Environmental Mechanics

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In many countries of the northern hemisphere during winter period ice forms appear on various water bodies, which results in significant changes of physical, chemical and ecological conditions. These changes are different in rivers, channels, lakes or once-through reservoirs. On the terrain of Poland ice always caused considerable problems affecting intensive inland navigation and other river use. These problems appeared especially on the Vistula River, which in 17th and 18th century was one of the most navigable rivers in Europe. The Vistula is the largest Polish river, which flows from the south in the Carpathian Mountains to the Baltic Sea in the north. It is the second largest river, after Neva, of the Baltic Sea catchment. The length of the Vistula is 1047 km and its catchment amounts to 194 thousand km2. The predominant part of the Vistula river basin (87%) is now on Polish territory and the remaining (13%) catchment is in Belarus, Ukraine and Slovakia. The course of the Vistula can be divided into three distinctly different sections: upper, middle and lower. These river sections have appropriate catchments with their tributaries. There are hydraulic structures on the main river course and on its tributaries which serve navigation, hydroenergy, flood protection, water supply and recreation. All over the Vistula catchment there are frequent floods during spring and summer time resulting from excessive precipitation but in winter caused by ice phenomena. Numerous flow problems appear especially along the lower Vistula course because of ice phenomena and they result very often in severe flood problems. The Vistula has a very variable time and spatial discharge, because of existing climate conditions over its catchment. The aim of the paper is to present hydraulic and hydrologic characteristics of the Lower Vistula river with special emphasis on the management of this river section for navigation, hydroenergy, flood protection and water supply in view of ice phenomena appearing there. Information concerning changes of water characteristics due to various water temperatures are presented as well as on the formation of various forms of ice in flowing water. Numerous ice studies were carried out in Poland and especially on the Lower Vistula section as it was very ice prone and where many ice jams and ice-jam floods occurred. A special hydraulic situation existed at the mouth of the Vistula, which caused important floods in the 18th century and resulted in the construction of a special direct channel to the sea (Przekop Wisły) solving flood problems in this area. Information is presented on changes in open channel flow due to the appearance of ice cover and other ice forms. The paper includes ample information on the run, consequences and studies connected with a very important ice-jam-flood on the upper part of Włocławek reservoir in 1982.

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Section: Roughness Of the Underside Of Ice Covermentioning

confidence: 98%

The Lower Vistula and Its Ice Problems

Majewski

2021

Archives of Hydro-Engineering and Environmental Mechanics

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“…In contrast to the logarithmic law of the open-surface case, it is unclear on the form of the time-averaged velocity profile in the asymmetrical configuration (Guo et al, 2017). There exists a maximum velocity, which typically does not locate on the symmetry plane (Tsai & Ettema, 1994;Tatinclaux & Gogus, 1983;Urroz & Ettema, 1994b). As the shape of the velocity profile is changed under ice-covered condition, its gradient near the river bed is different from the open-surface counterpart (Guo et al, 2017).…”

Section: Introductionmentioning

confidence: 93%

On the impacts of ice cover on flow profiles in a bend

Koyuncu

2022

Preprint

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We investigate the impact of ice coverage on flow and bed shear stress profiles in a river bend. We perform field measurements using Acoustic Doppler Current Profiler (ADCP) in a bend of the Red River, North Dakota, the United States. Field campaigns were carried out under both open surface and ice-covered conditions in 2020 and 2021. Our results show that the time-averaged velocity profile follows closely the quartic solution of Guo et al. ( 2017) under full ice coverage. While the flow profile under open-surface condition follows closely the logarithmic law near the bed, it is challenging to identify the logarithmic layers in our measured data under ice-covered condition. Our results also show that the impact of ice coverage is most significant near both banks where the vertical velocity profile is modified significantly due to the interaction of turbulent flows with the ice cover. Our results suggest that the bend curvature and ice coverage both have significant impacts on the velocity profile as well as the distribution of the bed shear stresses. Our findings provide new insights on sediment transport processes of ice-covered rivers, especially during the break-up period when the surface coverage changes rapidly.

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“…Additionally, it provides information on the river thermal‐ice processes, such as the evolution of undercover transport of frazil granules that contribute to the development of hanging dams (Shen & Wang, 1995) and the development of border ice (Huang et al, 2012). The existence of ice cover provides thermal insulation and additional surface resistance for river flow, and thus significantly changing the boundary shear stress distribution, velocity profiles, and turbulence characteristics (Easa, 2017; Koyuncu & Le, 2022; Tatinclaux & Gogus, 1983). Teal et al (1994) systematically compared 10 point‐velocity measurement techniques with field velocity profiles under the ice cover.…”

Section: Introductionmentioning

confidence: 99%

Transverse flow distributions in ice‐covered channels

Pan

Guo

Shen

et al. 2023

River

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Traditional discharge measurements in ice‐covered river channels are time‐consuming and costly, thus limiting the elucidation of flow patterns during winter. This study proposes an analytical model for quantifying the transverse distributions of the unit‐width discharge and the depth‐averaged streamwise velocity in ice‐covered channels by extending an existing stream‐tube method to include the effects of cover and bed roughness and cross‐sectional geometry. A new set of equations are obtained for this extended method. An empirical coefficient α is included to lump the effects of the shape and friction factors of the ice cover and the channel bed. The model is compared with flume experiments and field data for fully and partially ice‐covered flows to examine the variation of the coefficient α.

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Asymmetric Plane Flow with Application to Ice Jams

Cited by 15 publications

References 9 publications

The Lower Vistula and Its Ice Problems

The Lower Vistula and Its Ice Problems

On the impacts of ice cover on flow profiles in a bend

Transverse flow distributions in ice‐covered channels

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