Document Type : Original Manuscript

Authors

1 Department of Marine Structures, Faculty of Engineering, Khorramshahr University of marine science and technology

2 Department of hydraulic structure, Faculty of water science engineering, shahid chamran University, Ahwaz.

3 Department of Hydraulic Structures, Faculty of Civil Engineering.,Tarbiat Modares University., Tehran.

Abstract

It is well known that the shortage of water is one of the most serious problems that faces the mankind. Therefore the study and search for the phenomenon that have impact on the water reservoirs and other natural resources of water, is essential. One of the most fundamental phenomenons relating to water reservoirs is the density currents. The importance of the investigation and analysis of the hydraulic behavior of density currents will be apparent when we consider the consequences of the occurrence of these currents and its effects on the erosion of water reservoirs and also the sediments that they cause to be deposited in these reservoirs. For example the incoming of these currents in water reservoirs will effect the biological activities, it may cause sediments in these water reservoirs or it might press down these sediments to the bottom of water reservoirs.

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Ahadiyan.J, Mohhamadi.F, Bahrami.H. 2014, Effect of vertical angle and hydraulic properties on flow distribution of single dense jet using physical model, journal of Marine Science and Technology.
Bahrami.H, Ghomeshi.M, Kashefipour.M, salehi.A.A, 2017, Investigation of characteristics of density current because of regime changes, journal of Marine Science and Technology.
 Chikita K., 1990, Sedimentation by river – induced Turbidity currents; field measurements and interpretation, Sedimentology, vol. 37, pp. 891-905.
Daly R.A., 1936,  Origin of submarine canyons. American Journal of Science, vol. 31, pp. 401 – 420.
Ellison T.H., Turner J.S. , 1959, Turbulent entrainment in stratified flow, Journal of Fluid Mechanics, Vol. 6, No. 3, pp. 423.
Garcia M.H. , 1992, Turbidity currents , Encyclopedia of Earth system Science, Vol. 4, pp. 399-408.
Garcia,M.H, 1993, Hydraulic jumps in sediment-driven bottom currents. J.Hydraul.Eng., 119, 1094–1117.
Graf, W.H. , 1992, Storage losses in reservoirs, International Water Power & Dam Construction, Vol. 36, No. 4.
Haghiabi, A. H., 2004, The study of bed slope effect on velocity and concentration profiles   of density currents, Ph.D. Thesis, Shahid Chamran University, Ahwaz,Iran.
Parker G., Garcia M., Fukushima Y. , 1987, Experiments on turbidity currents over an erodible bed, Journal of Hydraulic Research, Vol. 25, No. 1.
Simpson J.E. , 1997, Gravity currents in the environment and the laboratory, Cambridge University Press.
Turner, J.S., 1973, Buoyancy effects in fluids, Cambridge University Press, London, England.