Auteur Subhasish Dey
Documents disponibles écrits par cet auteur (11)
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Subhasish Dey, Auteur ; Barbhuiya, Abdul Karim, Auteur |Experiment was conducted in a laboratory flume to measure the 3D turbulent flow field by an acoustic Doppler velocimeter in a scour hole at a 45o wing-wall abutment under a clear water regime. The profiles of time-averaged velocity components, t[...]
Article : texte imprimé
Chang Lin, Auteur ; Tsung-Chun Ho, Auteur ; Subhasish Dey, Auteur |This paper presents an experimental investigation on the characteristics of a horseshoe vortex system near the juncture of a square cylinder and a horizontal base plate, using particle image velocimetry and flow visualization technique. Experime[...]
Article : texte imprimé
Subhasish Dey, Auteur ; Arindam Sarkar, Auteur |This paper reports an experimental investigation on the velocity and turbulence characteristics in an evolving scour hole downstream of an apron due to submerged jets issuing from a sluice opening detected by an acoustic Doppler velocimeter. Exp[...]
Article : texte imprimé
Subhasish Dey, Auteur ; Arindam Sarkar, Auteur |The results of an experimental investigation on the flow field in submerged jumps on horizontal rough beds, detected by an acoustic Doppler velocimeter, are presented. Experiments were conducted for the conditions of submerged jumps, having subm[...]
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Subhasish Dey, Auteur ; Martin F. Lambert, Auteur |Experimental observations showed that in a compound channel, the free surface elevation transverse to the flow direction in the main channel is different to that in the floodplain in the vicinity of the end section. The non-horizontal transverse[...]
Article : texte imprimé
Arindam Sarkar, Auteur ; Subhasish Dey, Auteur |Experiments were conducted to investigate the effect of upward seepage on the characteristics of scour hole due to horizontal submerged jets and the resulting flow field within the scour hole. In the experiments, the submerged jets had a range o[...]
Article : texte imprimé
Rajkumar V. Raikar, Auteur ; Subhasish Dey, Auteur |This paper presents an experimental investigation on the characteristics of the development of turbulent horseshoe vortex flow in an evolving (intermediate stages and equilibrium) scour hole at square cylinder measured by an acoustic Doppler vel[...]
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Oscar Castro-Orgaz, Auteur ; Subhasish Dey, Auteur |The one-dimensional (1D) momentum equation for free surface flow over curved boundaries has so far been traditionally developed integrating the Reynolds equations across the flow section in a boundary-fitted system of coordinates, such as flows [...]
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Subhasish Dey, Auteur ; Cheng, Nian-Sheng, Auteur |Nonuniform-unsteady flow in open channels with streamwise sloping beds havind uniform upward seepage is theoretically analyzed. Expression for the Reynolds stress and bed shear are developed, assuming a modified logarithmic law of velocity profi[...]
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Subhasish Dey, Auteur ; Zanke, Ulrich C. E., Auteur ; Teng, Michelle H., Éditeur scientifique |An analytical model is presented to determine the threshold bed shear stress for noncohesive sediment motion subject to upward seepage on horizontal sedimentary bed under a stream flow. Hydrodynamic, seepage, and micromechanical forces acting on[...]
Article : texte imprimé
Subhasish Dey, Auteur ; Tushar K. Nath, Auteur |The influence of seepage (lateral flow) on the turbulence characteristics in free-surface flows over an immobile rough boundary is investigated. Steady flows having zero-pressure gradient over an immobile rough boundary created by uniform gravel[...]
