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Czasopismo
2010 | Vol. 58, no. 2 | 337-355
Tytuł artykułu

An analysis of the mechanism of flow in ice-covered rivers

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EN
Abstrakty
EN
The paper presents a mechanism of flow of water in an ice-covered river in the case of movable bottom. The analysis is based upon the principal hydrodynamics equations of turbulent flow in the case of steady uniform motion. It leads to the conclusion of linear distribution of the turbulent shear stress with depth. It allows to obtain the vertical distribution of velocity of flowing water under the assumption that at the boundaries (movable bottom and ice) the viscosity of water is greater than the kinematics viscosity. The relations describing the vertical distribution of velocity of flowing water, as well as the eddy viscosity coefficient under these conditions, are given.
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Czasopismo
Rocznik
Strony
337-355
Opis fizyczny
Bibliogr. 16 poz.
Twórcy
autor
  • Department of Geotechnics, West Pomeranian University of Technology, Szczecin, Poland,, meyer@zut.edu.pl
Bibliografia
  • Ackers, P., and W.R. White (1973), Sediment transport: New approach and analysis, J. Hydraul. Div. ASCE 99, 11, 2041-2060.
  • Graf, W.H. (1984), Hydraulics of Sediment Transport, Water Resources Publications, Chelsea, MI, 513 pp.
  • Helmiö, T. (2001), Friction measurements of ice cover: Theory and practice in River Päntäneenjoki, Proc. 2nd IAHR Symposium on “River, Coastal and Estuarine Morphodynamics”, 10-14 Sep., Obihiro, Japan, 179-187.
  • Kubrak, J., and E. Nachlik (eds.) (2003), Hydraulics Principles of River Flow Calculations, Wyd. SGGW, Warszawa, 317 pp. (in Polish).
  • Majewski, W. (2003), Determination of roughness coefficient of the underside of ice cover, Arch. Hydro-Engin. Environ. Mech. 50, 3, 151-154.
  • Majewski, W. (2007), Flow in open channels under the influence of ice cover, Acta Geophys. 55, 1, 11-22, DOI: 10.2478/s11600-006-0041-8.
  • Meyer, Z. (1981), Vertical circulation in reservoir due to selective withdrawal, Hydrotechn. Trans. 43, 193-219.
  • Meyer, Z. (1986), Vertical circulation in density-stratified reservoirs. In: N.P. Cheremisinoff (ed.), Encyclopaedia of Fluid Mechanics. Vol. 2: Dynamics of Single-Fluid Flows and Mixing, Gulf Publishing Co., Houston, TX, 572-636.
  • Meyer, Z. (2009), Modified logarithmic tachoida applied to sediment transport in river, Acta Geophys. 57, 3, 59-83,
  • Meyer, Z., and R. Coufal (2001), Hydraulics conditions of steady motion in an estuarial river section under wind influence, Arch. Hydro-Engin. Environ. Mech. 48, 3, 59-83.
  • Nowh, M. (1989), The von Karman coefficient in sediment laden flow, J. Hydraul. Res. 27, 4, 477-499.
  • Pokrajac, D. (2007), Momentum transfer between a free-surface turbulent flow and a turbulent flow within underlying pours medium, Publs. Inst. Geophys. Pol. Acad. Sc. E-7, 401, 207-222. Prandtl, L. (1956), Dynamics of Flow, PWN
  • Sawicki, J. (1998), Free Surface Flows, PWN, Warszawa (in Polish). Stone, M.C., and R.H. Hotchkiss (2007), Evaluating velocity measurement techniques in shallow streams, J. Hydraul. Res. 45, 6, 752-762.
  • Walker, J.F., and D. Wang (1997), Measurement of flow under ice covers in North America, J. Hydraul. Eng. ASCE 123, 11, 1037-1040,
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-article-BSL7-0037-0016
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