Results 241 to 250 of about 39,296 (293)
Spatially varied steady flow in irrigation canals
Agricultural Water Management, 1996 Abstract A mathematical model is developed for the analysis of spatially varied steady flow in an irrigation canal. The spatially varied steady flow equations are solved using the finite difference method. The model results are verified with the observed water surface profiles available in literature.
Rajeev Misra, MISRA, R
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Flow Profiles For Steady Spatially Varied Flow
Journal of Hydraulic Research/De Recherches Hydrauliques, 1991 (1991). Flow Profiles For Steady Spatially Varied Flow. Journal of Hydraulic Research: Vol. 29, No. 2, pp. 284-287.
Willi H Hager
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Friction Factors for Spatially Varied Flow with Increasing Discharge
Journal of Hydraulic Engineering, 2005 This paper describes an experimental investigation of how friction factors change for spatially varied flow in sloping channels receiving lateral inflow. The results are compared with those of Beij in 1934, and it is concluded that uniform flow resistance coefficients are not always appropriate for spatially varied flow.
Simon Beecham +2 more
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PERTURBATION SOLUTION OF SPATIALLY VARIED FLOW IN OPEN CHANNELS
Journal of Hydraulic Research/De Recherches Hydrauliques, 1977 Approximate algebraic solutions are developed using the method of perturbation for spatially varied flow in open channels. The predictions from algebraic solutions are sufficiently accurate for subcritical flows in the range of yu =0.5 to 1.1 where yu is the dimensionless depth at the upstream end.
Mohammad Akram Gill
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Concepts of Spatially Varied Flow
Volume 1, 2004 By presenting relationships for spatially varied flow with combined increasing and decreasing discharge, and relating those relationships to prior work, a clearer exposition of spatially varied flow concepts is provided. The applicability and usefulness of energy (First Law of Thermodynamics) and momentum (Newton’s Second Law) principles to spatially ...
S. David Graber
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Spatially varied flow impact on resistance in corrugated pipes
Proceedings of the Institution of Civil Engineers - Water Management, 2011 The roughness coefficient is a significant factor in hydraulic design process, but carries vast uncertainty in practice. This paper reports the resistance coefficients of corrugated PVC pipes under different flow regimes (i.e. pressurised, gradually varied flow (GVF) and spatially varied flow (SVF) with increasing discharge).
Salah Kouchakzadeh +3 more
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Spatially Varied Subcritical and Supercritical Flow in Gullies
, 1974 Abstract: The objective of this study was to investigate the phenomena of subcritical and supercritical spatially varied flow in rectangular expansions such as that in an erosion gully. Based on momentum and continuity principles, equations were developed to predict such flow phenomena.
Kao, T. Y.
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Flow profiles for steady spatially varied flow an explorative analysis
Journal of Hydraulic Research, 1989 Aim of this paper is to present a mathematical description of the flow profile in a river of which the discharge decreases gradually due to percolation. Subject to assumptions (uncurved, prismatic channel with fixed, flat bottom and constant slope, uniform velocity distribution) two ordinary differential equations can be derived, one describing the ...
M. Schropp, H. L. Fontijn
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Similarity and length scale for spatially varied overland flow
Water Resources Research, 1990One‐dimensional finite element models enable physically based investigations of overland flow generated under spatially varied surface slope, width, roughness, and excess rainfall intensity. Simulated results of 8400 dimensionless hydrographs under spatially varied input parameters indicate that runoff discharge variations depend primarily on the ratio
Pierre Y. Julien, Glenn E. Moglen
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Flume for Teaching Spatially Varied Open-Channel Flow
Journal of Hydraulic Engineering, 2003Spatially varied flow in open channels is a topic that is often included in undergraduate open channel hydraulics courses. Physical and computational models are developed to enhance the presentation of spatially varied flow to engineering students at the late undergraduate or early graduate level. The physical model is inexpensive and easy to build and
Joel Cahoon, Takashi Hoshino
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