Vízügyi Közlemények, 1996 (78. évfolyam)

2. füzet - Pándi, G.-Sorocovschi, V.-Barna E. M.: A vízfolyások lebegtetett hordalékszállításának energetikája

A vízfolyások lebegtetett hordalékszállitásának energetikája 205 Carabogdan, I. G.-Bratianu С.: Bilantul energetic. Aplicabilitate si limité. Energ. — Ed. Technica. Bucu­resti 1986. Cogalniceanu, A.: Bazele technice si economice ale hidroenergeticii. Ed. Technica, Bucuresti 1986. Florea, J.-Oetrivoci, T.-Robescu, D.—Stanatiu, D.: Dinamica fluidelor polifazice aplicatiile ei technice, Ed. Technica, Bucuresti 1987. Gilbert, G. K.: The transportation of Debris by Running Water. U.S. Geological Survey Professzional Paper 86. 1914. Ichim, I.: Sistemul alubiunilor, Lucrarile Simpozionului „Provenienta si efluenta aluvinilor", Piatra Neamt 1987. Linsley, K. K.-Kohler, M. A.—Paulhus, J.: Hydrology for engineers. Mc. Grew-Hill Book Company, Tokyo, 1982. Mever-Peter, E—Favre, A —Einstein. H.: Neuere Versuchsresultate über den Geschiebetrieb. Schweizer­ische Bauzeitung Vo. 103. Nr. В Zürich, 1934. Mever-Peter, E—Müller, R.: Formules for Bed-load transport. Int. Ass. for Hydraulic Res. Stockholm, 1948. Partoit: Ann. des Ponts et Chaussées 5 е serie, l r e ann., Mem. Tom I. 1871. Podani, M.: Formarea aluviunilor in albie si pe versanti ca proces hidroenergetic, Lucrarile Simpozionului „Provenienta si efluenta aluviunilor", Piatra Neamt, 1987. Rákóczi L.: Vegyes szemösszetételü hordalék kritikus sebességének meghatározása. Hidrológiai Közlöny 10-12. 1975. Rosszinszkij, K. /.: Dvizsenie donnih nanoszov. GGI Trud vyp. 160. Leningrad 1968. Stelczer K.: A görgetett hordalék mozgásának jellemzése a valószínűségelmélet módszereivel. Vízügyi Közlemények, 4. füzet 1971. Stelczer K.: A görgetett hordalékok mozgásának számítása. Vízügyi Műszaki Gazdasági Tájékoztató. 123. Budapest, 1980. Újvári, J.-Pándi, G.: Suprafetele adjacente si prognoza scurgerii solide. Hidrotechnica, 2, Bucuresti, 1985. Újvári, J.-Pándi, G.: Erosion ecopotential and a possible energy balance for the solid transport. The 2-nd A.I.H.S, Congress, Budapest, 1986. Winghart, I.: Connaissance actuelle du mecanisme du transport solide. Ann. des Ponts et Chaissées, No 1. 1965. * * * Energy properties of the suspended solid transport of streams by Gábor PÁN DI, Victor SOROCOVSCH1 and Melinda BARNA As the result of the water erosion process streams carry suspended and dissolved solids, forming a polyphase mixture. The two major phases of this mixture are the solid and liquid phases. Although they move together they both have their own energy. The system of forces and the temporal and spatial interactions of the three morphodynamic pro­cesses (erosion, transport and deposition) are interpreted by various researchers in different ways. In function of the liquid phase the state of the solid phase of the polyphase water, found in nature, can be the following: stagnant, critical-movement, bed-load movement, suspended movement and criti­cal deposition. Within a drainage basin the morphodynamic process of erosion can be expressed either by the "erosion ecopotential" (EpE) or by the "environmental erosion potential (Fig. 1. ). EpE is the function of the forces of motion (FM) and the retaining (resistance) forces (FR). Types of energy provided by water are summarized in Fig. 2. The total energy (EM) of the bi-phase water can be expressed as the

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