CaltechAUTHORS - Western Waters Digital Library

Mass and momentum transport in a turbulent buoyant vertical axisymmetric jet
The entrainment and mixing processes in an axisymmetric vertical turbulent buoyant jet and its transition from a jet to a plume have been studied. The ambient fluid is of uniform density and calm except for the flow induced by the jet, and the... 1984-01-01

Turbulent buoyant jets into stratified or flowing ambient fluids
Theoretical and experimental studies were made on two classes of buoyant jet problems, namely: 1) an inclined, round buoyant jet in a stagnant environment with linear density-stratification; 2) a round buoyant jet in a uniform cross stream of... 1967-06-01

Compilation of alluvial channel data : Laboratory and field
In recent years, attempts have been made to develop numerical models for unsteady flows in channels with sediment transport. The work presented in Reports KH-R-43A and KH-R-43B was conducted to analyze two essential ingredients of any numerical... 1981-01-01

Prediction of flow depth and sediment discharge in open channels
In recent years, attempts have been made to develop numerical models for unsteady flows in channels with sediment transport. The work presented in Reports KH-R-43A and KH-R-43B was conducted to analyze two essential ingredients of any numerical... 1981-01-01

Tsunamis: Non-Breaking and Breaking Solitary Wave Run-Up
This study considers the run-up of non-breaking and breaking solitary waves on a smooth sloping beach. A non-linear theory and a numerical model solving the non-linear shallow water equations (NLSW) were developed to model this physical process.... 2000-01-01

Transport of nonlinearly adsorbing compounds between stream water and sediment bed in a...
The exchange of nonlinearly adsorbing compounds between stream water and sediment beds covered with stationary bedforms was investigated in laboratory experiments. The dominant physical exchange process is advective pumping caused by dynamic... 1998-01-01

Numerical solutions of turbulent buoyant jet problems
Theoretical solutions were obtained for four classes of turbulent buoyant jet problems, namely, 1) an inclined, round buoyant jet in a stagnant, uniform ambient fluid; 2) an inclined, round buoyant jet in a stagnant ambient fluid with linear... 1969-01-01

Lecture notes on sediment transportation and channel stability
1961-01-01

Wave induced oscillations in harbors of arbitrary shape
Theoretical and experimental studies were conducted to investigate the wave induced oscillations in an arbitrary shaped harbor with constant depth which is connected to the open-sea. A theory termed the "arbitrary shaped harbor" theory is... 1969-01-01

Studies on the mixing in a density-stratified shear flow
The objective of this study was to examine in a fundamental way the mixing processes in a stably-stratified shear flow. The results of the experimental program have yielded information on the nature of turbulence and mixing in density-stratified... 1979-01-01

Studies on gravitational spreading currents
The objective of this investigation is to examine the buoyancy-driven gravitational spreading currents, especially as applied to ocean disposal of wastewater and the accidental release of hazardous fluids, such as liquefied natural gas. A series... 1980-01-01

Tsunamis - harbor oscillations induced by nonlinear transient long waves
The process of excitation of harbors and bays by transient nonlinear long waves is investigated theoretically and experimentally. In addition, nonlinear shallow water waves generated in a closed rectangular basin by the motion of the basin are... 1980-01-01

Observations in a sediment-laden flow by use of laser-doppler velocimetry
The laser-Doppler velocimetry technique was adapted for use in sediment-laden flows. The developed instrumentation was used to make one-dimensional, instantaneous measurements of both fluid and sediment grain velocities throughout the water... 1981-01-01

Interaction of water waves with a density-stratified fluid in a rectangular trench
The interaction of normally incident time-periodic water waves with a density-stratified fluid in a rectangular trench is studied experimentally and theoretically; the fluid outside the trench is homogeneous. This investigation has focused on... 1989-01-01

Thermal plumes from staged multiport diffusers in a uniform quiescent environment
The behavior of thermal plumes discharged from staged diffusers has been investigated experimentally. A staged diffuser is a type of submerged multiport diffuser characterized by an offshore orientation of the individual nozzles. It is commonly... 1990-01-01

Transfer of solutes into and out of streambeds
Laboratory experiments were conducted to determine the mechanisms and rates of bed/stream exchange of non-reactive solutes for beds of medium and fine sand. Experiments were conducted under steady flow conditions with and without sediment... 1990-01-01

Tsunamis : forces on a vertical wall caused by long waves, bores, and surges on a dry bed
The major objective of this study has been to investigate experimentally the forces and overturning moments produced by tsunamis on vertical walls. The experimental results are compared with several analytical and numerical models. Several types... 1993-01-01

The interaction of breaking solitary waves with an armored bed
This study investigates the interaction of breaking waves with a bed of loose angular material with a median grain size of 4.8 mm. It is motivated by the engineering problem of determining rock sizes for revetments used as protection for... 1993-01-01

Transport of adsorbing metal ions between stream water and sediment bed in a laboratory...
The transport of adsorbing metal ions (copper, zinc, calcium and magnesium) between the water column and the sand bed in a 5 meter long recirculating laboratory flume with bottom bedforms has been investigated. A non-adsorbing tracer, lithium,... 1994-01-01

Particle transport in flow through porous media : advection, longitudinal dispersion,...
A theoretical and experimental investigation of the transport parameters of particles flowing through porous media has been made. These parameters are the particle advective velocity, longitudinal dispersion coefficient, and filter coefficient.... 1992-05-01

Effects of ambient crossflows and density stratification on the characteristic behavior...
This investigation considers a round, turbulent buoyant jet in an ambient crossflow that is either of uniform density or with a linear density stratification. The primary emphasis is the development of a fundamental understanding of the jet... 1977-01-01

Further laboratory studies of the roughness and suspended load of alluvial streams
A laboratory study was made to determine the variation with depth and velocity of the hydraulic and sediment transport characteristics of a constant-discharge flow. Eight experimental runs were performed in a 60-foot long, 33.5-inch wide... 1961-01-01

Exploratory studies of open-channel flow over laterally varying roughness
An exploratory study was made of open-channel flow over beds consisting either entirely or partially of large granular roughness. Steady, uniform flow was established at various depths and velocities over two types of beds, one rough over the... 1961-01-01

Development of roll waves in open channels
NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. This study is concerned with some of the properties of roll waves that develop naturally from a turbulent uniform flow in a wide... 1967-07-01

Measurements of critical shear stress for entraining fine sediments in a boundary layer
NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. Experiments were made in a flume 15-3/8 in. wide by 12 ft long to determine the shear stress for critical motion of fine sediment... 1964-05-01