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RISVelocity and Concentration Fields in Uniform Flow with Coarse Sands
Publisher: American Society of Civil Engineers
Abstract: The vertical distributions of velocity and concentration for an open-channel flow mixed with coarse sands are investigated by using a mathematical model, taking account of the momentum transfer by the turbulent motion and ...
Shore Protection against Sea Level Rise and Tropical Cyclones in Small Island States
Publisher: American Society of Civil Engineers
Abstract: The abrupt phase shift of the El Nino Southern Oscillation (ENSO) resulted in several cyclones during 2004–2005 in the Southeast Pacific and east of the International Date Line. During a four-week period in February 2005, ...
Reynolds Stresses and Velocity Distributions in a Wave-Current Coexisting Environment
Publisher: American Society of Civil Engineers
Abstract: To investigate changes in the mean velocity profile owing to the interaction between waves and a current, the horizontal and vertical velocity components in the oscillating fluid were measured by a two-dimensional laser ...
Coupled PIV and PTV Measurements of Particle Velocities and Trajectories for Surface Waves Following a Steady Current
Publisher: American Society of Civil Engineers
Abstract: This paper describes kinetic aspects of surface waves propagating with or without a current in a constant water depth. Physical properties of the velocity and trajectory of a water particle during one wave cycle were ...
Experimental and Theoretical Analyses of Internal Waves of Finite Amplitude
Publisher: American Society of Civil Engineers
Abstract: Experimental and theoretical investigations are conducted in order to understand the propagation of internal waves in a density-stratified water layer. In a laboratory, the internal waves were artificially generated by two ...
PIV Techniques for Velocity Fields of Internal Waves over a Slowly Varying Bottom Topography
Publisher: American Society of Civil Engineers
Abstract: This paper reviews transformation processes and nonlinear properties of internal waves over a uniform slope in a two-fluid system, attempting to reveal water particle kinematics by using particle image velocimetry (PIV). ...
Mean Velocity Changes due to Interaction between Bichromatic Waves and a Current
Publisher: American Society of Civil Engineers
Abstract: This investigation deals with the changes in the mean velocity associated with a bichromatic wave train in a steady current. The Eulerian-mean velocity model originally developed for monochromatic waves is applied to the ...
Closure to “Reynolds Stresses and Velocity Distributions in a Wave-Current Coexisting Environment” by Motohiko Umeyama
Publisher: American Society of Civil Engineers
Changes in Turbulent Flow Structure under Combined Wave-Current Motions
Publisher: American Society of Civil Engineers
Abstract: The horizontal, lateral, and vertical velocity components in a recirculating channel were measured to study changes in the turbulent intensity, Reynolds stress, and velocity distributions due to the interaction between a ...
Wave Overtopping on Vertical Boundary and Water‐Surface Displacement
Publisher: American Society of Civil Engineers
Abstract: A perturbation method representing a nonlinear gravity wave is applied to the vertical displacement of the water surface of a standing wave for estimating wave overtopping. The presented method predicts the surface ...