Search Results - "Kothyari, Umesh C"

Three-Dimensional Flow Characteristics within the Scour Hole around Circular Uniform and Compound Piers by Kumar, Ashish, Kothyari, Umesh C

“…AbstractThe experimental observations are presented on flow patterns and turbulence characteristics measured by an acoustic Doppler velocimeter within the…”
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Influence of cohesion on the incipient motion condition of sediment mixtures by Kothyari, Umesh C., Jain, Rajesh Kumar

“…Previous investigations on initiation of motion and erosion of cohesive sediment mixtures have not included gravel within the mixtures. Experimental results on…”
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Drag coefficient of unsubmerged rigid vegetation stems in open channel flows by Kothyari, Umesh C., Hayashi, Kenjirou, Hashimoto, Haruyuki

“…Results of an experimental study on the drag force measurement involving a single stem kept in a channel flow stem array are presented. The data collected…”
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Cohesion influences on erosion and bed load transport by Jain, Rajesh K, Kothyari, Umesh C

“…Studies on erosion and transport rates of cohesive sediment mixtures containing gravel are not reported so far in the literature to the best of our knowledge…”
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Effect of tall vegetation on sediment transport by channel flows by Kothyari, Umesh C., Hashimoto, Haruyuki, Hayashi, Kenjirou

“…Results of an experimental study on sediment transport by channel flows with tall rigid stems are presented. The experiments were conducted for various stem…”
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Near-bed particle motion over transitionally-rough bed by Ramesh, Bhaskar, Kothyari, Umesh C., Murugesan, Krishnan

“…The motion of sediment particles over a transitionally-rough bed is studied experimentally using a real-time high-speed imaging system. Vertical distributions…”
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A GIS based distributed rainfall–runoff model by Jain, Manoj K., Kothyari, Umesh C., Ranga Raju, Kittur G.

“…A grid or cell based process oriented distributed rainfall–runoff model capable of handling the catchment heterogeneity in terms of distributed information on…”
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GIS Based Distributed Model for Soil Erosion and Rate of Sediment Outflow from Catchments by Jain, Manoj K, Kothyari, Umesh C, Raju, Kittur G

“…A spatially distributed rainfall–runoff–soil erosion model capable of handling catchment heterogeneity in terms of landuse, soil, slope, and rainfall has been…”
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Temporal Variation of Scour around Circular Compound Piers by Kothyari, Umesh C, Kumar, Ashish

“…AbstractBridge piers having a nonuniform cross section over their height are termed as compound bridge piers. Mostly circular piers resting on large diameter…”
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Influence of Cohesion on River Bed Scour in the Wake Region of Piers by Kothyari, Umesh C, Kumar, Ajay, Jain, Rajesh K

“…AbstractStudies on scour in the wake region of piers in cohesive sediments containing gravel were not reported in literature, to the best of our knowledge…”
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Generalized Approach for Clear-Water Scour at Bridge Foundation Elements by Kothyari, Umesh C, Hager, Willi H, Oliveto, Giuseppe

“…Extensive studies on the temporal evolution of scour were recently conducted at Versuchsanstalt für Wasserbau, Hydrologie und Glaziologie VAW, ETH Zürich,…”
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Rapidly varying transient flows in alluvial rivers by Singh, Ajay K., Kothyari, Umesh C., Ranga Raju, Kittur G.

“…Extensive changes can occur in alluvial river morphology over relatively short time periods due to such extreme events as a flash flood or flood resulting due…”
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Indian practice on estimation of scour around bridge piers—A comment by Kothyari, Umesh C.

“…Well-laid foundation is mostly provided in road and railway bridges in India over large and medium-sized rivers. The age-old Lacey-Inglis method is used for…”
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Estimation of soil erosion and sediment yield using GIS by JAIN, MANOJ K., KOTHYARI, UMESH C.

“…A Geographical Information System (GIS) based method is proposed and demonstrated for the identification of sediment source areas and the prediction of storm…”
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ANN-Based Soil Moisture Retrieval over Bare and Vegetated Areas Using ERS-2 SAR Data by Said, Saif, Kothyari, Umesh C, Arora, Manoj K

“…Active microwave remote sensing data (e.g., radar) can be used for estimation of soil moisture beneath the ground surfaces up to 0 to 5 cm depths. A number of…”
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Influence of cohesion on suspended load transport of non-uniform sediments by Jain, Rajesh K., Kothyari, Umesh C.

“…Experimental results are presented on suspended load transport rates of clay eroded from a channel bed made up of two types of cohesive sediment mixtures. The…”
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Suspended Wash Load Transport of Nonuniform Sediments by Khullar, Narinder K, Kothyari, Umesh C, Ranga Raju, Kittur G

“…The results of an experimental study on transport of suspended wash load through a coarse-bed stream are presented. The experiments were conducted under…”
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Discussion of “Downstream Hydraulic Geometry of Alluvial Channels” by Jong-Seok Lee and Pierre Y. Julien by Kothyari, Umesh C, Hashimoto, H

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Mixing coefficients for longitudinal and vertical mixing in the near field of a surface pollutant discharge by Singh, Sarbjit, Ahmad, Zulfequar, Kothyari, Umesh C.

“…Laboratory experiments conducted in a rectangular open channel on passive mixing of pollutants in longitudinal and vertical directions due to a transverse line…”
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Two-dimensional mixing of pollutants in streams with transverse line source by Singh, Sarbjit, Ahmad, Zulfequar, Kothyari, Umesh C.

“…A numerical scheme based on the split-operator approach was developed for the solution of two-dimensional mixing equation with a transverse line-slug source in…”
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