# Flow Field Near an Inland Navigation Tow

*As a vessel moves through a body of water, disturbances are created in the form of altered water levels such as waves or drawdown and altered flow fields such as increased velocities and...*

Sampling Methods for Estimations of Velocity Distribution in Rectangular Open Channels

Convection in the Classroom

*By their nature, the empirical relations used to calculate convective heat transfer coefficients offer the user little or no insight into how the typical input parameters, e.g., pipe diameter...*

Potential Flow Over a Wavy Bed: A Persistent Error

*The standard small-amplitude theory of potential flow over a wavy bed is briefly discussed, together with the three special values of the Froude Number which define four different flow...*

Bed Waves Generated by Internal Waves in Alluvial Channels

*The flow in an alluvial channel is conceived as a stratified flow both with respect to the velocity- and density-distribution. In such flows internal waves may occur which influence the...*

The Beginning of Sediment Transport as a Probability-Problem

*Sediment transport only takes place when the action of flow (shear stress, velocity) exceeds a critical value. The limit between rest and movement can be given as critical flow velocity,...*

Near Bed Sediment Concentration as Influenced by Turbulence

*Suspended sediment concentration profiles are developed based on the conservation of mass and conservation of momentum equations of sediment laden flows. The resulting concentration profile...*

Sediment—Hyperconcentration Flow and Its Similarity Laws

*The sediment- hyperconcentration flow are studied theoretically and experimentally, and the formulas for the Bingham shear stress, rigidity coefficient, fall velocity and transport capacity...*

The Effects of Velocity on Scour

*Four effects of 'velocity' on scour are discussed: clear-water scour, scour by light sediment-transporting flow, mode of movement, and kinetic terms included...*

Estimating Velocity and Scour in River Bends

*A one-dimensional, steady-state, stream tube model was used to simulate hydraulic characteristics at a cross section. This enabled computation of higher velocities on the outside and lower...*

Exceedance of Allowable Velocity in Bank Stability

*The authors have developed a method to account for flow duration in the application of the allowable velocity method through comparison with observed bank instabilities on a river system....*

Laboratory Analysis of Hyperconcentrations

*The physical and kinematic behavior of hyperconcentrations has been reviewed and a summary of recent and past developments in hyperconcentrated flow research is presented. This paper focuses...*

Bed Topography and Sorting in Alluvial Channel Bends

*A quasi-three-dimensional model has been developed for the purpose of calculating the velocity distribution, the bed topography and sediment sorting along channel bends. The depth-averaged...*

Groins and Vanes Developed Basing Upon a New Concept of Bank Protection

*At curved bends, scour at the outer bank always accompanies deposition at the inner bank. A highly efficient river course for flood flow is considered to have a small lateral gradient...*

Design of Expansions for Sub-Critical Open Channel Flow

*Expansions for open channel flow at sub-critical velocity are required whenever it is necessary to reduce the velocity of flow from a structure which discharges into an erodible channel....*

Southwest Pass Training Structure Alternatives

*The U.S. Army Engineer Waterways Experiment Station system of computer programs, TABS-2, was utilized to evaluate various structural plans for increasing channel velocities and sediment...*

Vessel Induced Physical Effects in a Navigation Channel

*The U.S. Army Corps of Engineers is investigating ways to improve lockage efficiency at the Marmet Locks on the Kanawha River, West Virginia. A physical effects prediction model have been...*

Computerized Measurement of Turbine Flow and Performance, Including Penstock Protection

*The application of computer technology now makes it possible to measure turbine flows accurately, reliably and economically. The measurement is based on the differential pressure produced...*

Idealized Debris Flow in Flume with Bed Driven by a Conveyor Belt

*The generalized viscoplastic fluid (GVF) model is used to derive the theoretical expressions of two-dimensional velocities and surface profile for debris flow established in a flume with...*

Sediment Transport Due to Turbidity Currents

*The processes of sediment transport in a horizontal channel due to low-Reynolds-number turbidity currents are evaluated. A multiple-layer numerical model was developed to predict the flow...*

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