Pressure Fluctuations beneath Submerged Jump
Wall pressure fluctuations are measured beneath an hydraulic jump that is completely submerged. Two efflux velocities, 3.3 m per s and 2.6 m per s, are used; the corresponding Froude numbers...

Approximating Friction Factors for Trickle Tubing
A continuous functional form is identified which can represent explicitly the observed relationships between Reynolds number and friction factor for trickle irrigation tubing. Two methods...

Runoff Curve Numbers with Varying Site Moisture
Runoff curve numbers (CN) as used to estimate runoff volume (Q) from storm rainfall (P), are usually modified by handbook methods to account for the influence of watershed wetness. An...

Minimum Reynolds Numbers for Physical Model Similarity

Drag and Inertia Forces on a Cylinder in Periodic Flow
Experimental results for the drag and added mass coefficients for a smooth circular cylinder in oscillatory flow are presented. The test results are correlated with the Reynolds number...

Brink Depth Method in Rectangular Channel
Supplementary experiments for the brink depth method in a rectangular channel are described including changes of channel slope and channel roughness. The ratio of the end depth and the...

Stability Analysis of Floating and Submerged Ice Floes
The mathematical model is based on the moment equilibrium of an ice floe resting beneath a uniformly thick ice cover. It is argued that the expression derived for incipient motion of ice...

End Depth under Zero-Inertia Conditions
The terminal depth and velocity conditions for flow in an open channel ending in a free overfall are investigated under the assumption that inertial effects are everywhere negligible....

Quadrant-Plate Weir
The simple weir flow equation was numerically integrated for a quadrant-plate weir to show that the head-discharge relationship for this weir is approximately linear. The approximation...

Dimensionless Solutions of Border-Irrigation Advance
The equations of border-irrigation flow are written in dimensionless form and solved numerically at three different levels of mathematical approximation. For the advance phase three independent...

Infiltration Formula Based on SCS Curve Number
A formula was developed for computing infiltration in rainfall-runoff simulations from published U.S. Soil Conservation Service soils data. Cumulative infiltration was treated as the difference...

Spillway Stilling Basin for Low Froude Flows

Minimizing the Number of Buckling Curves in the Codes

Momentum Transfer Model for Reynolds Stresses
As with most other natural phenomena turbulence has to be approximate by a simplified mathematical model to be approximated by a simplified mathematical model to render its effects amenable...

Flow in 180° Open Channel Rigid Boundary Bends
The present experimental investigations were made in a 180° open channel bend to study the maximum development of spiral motion (conveyance-capacity) and bottom, as well as wall shear...

Hydraulic Performance of Tilting-Disk Check Valves
The characteristics of check valves for sodium service are presented. Knowledge of the forward and reverse flow characteristics of a tilting-disk check valve as a function of disk angle...

Wave Forces on Vertical Circular Cylinder
The test is conducted at low values of Reynolds number (<3x104). The measured data are analyzed to calculate the hydrodynamic coefficients...

Entrainment and Drag Forces of Deflected Jets
Experiments were carried out on a round turbulent jet with a Reynolds number of 2x105 discharged perpendicularly into crossflows in a wind tunnel....

Similitude in Coastal Engineering
The basic principles of the engineering approach to similitude is given with emphasis on coastal engineering applications. In contrast to the parallel that exists between the Froude similitude...

Water Yield Model Using SCS Curve Numbers
A model was developed to predict daily runoff from agricultural watersheds with areas up to 2,590 km². The model is based on the SCS runoff curve number procedure and a soil moisture index....

 

 

 

 

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