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CaltechAUTHORS
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Vortex energy dissipator for San Diego ocean outfall; laboratory investigations
The sewage effluent from the new sewage treatment plant for the City of San Diego, located on a bluff 95 feet above sea level on Point Lorna, is discharged to the ocean through a long submarine outfall pipe. Under almost all conditions of flow,... 1962-12-01
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Viscous stratified flow towards a line sink
A theoretical and experimental investigation has been made for the problem of two-dimensional, viscous, incompressible, steady, slightly-stratified flow towards a line sink. The analytical solution was obtained from the Navier Stokes equations,... 1964-01-01
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Wave-induced oscillations of small moored vessels
The general objective of this research is to investigate the motion of small boats moored to fixed or floating platforms in a standing wave environment. The study is directed toward an understanding of the problems of mooring small craft in... 1965-10-01
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Entrainment of fine sediments by turbulent flows
A study was made of the means by which turbulent flows entrain sediment grains from alluvial stream beds. Entrainment was considered to include both the initiation of sediment motion and the suspension of grains by the flow. Observations of grain... 1966-06-01
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Stability of two-layer stratified flow down an inclined plane
The stability of flow down an inclined plank has been investigated for the case of a stratified fluid system consisting of two layers of viscous fluid of different densities. This problem is an extension of the works of Benjamin and Yih for a... 1964-08-01
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Longitudinal dispersion in laboratory and natural streams
This study concerns the longitudinal dispersion of fluid particles which are initially distributed uniformly over one cross section of a uniform, steady, turbulent open channel flow. The primary focus is on developing a method to predict the rate... 1966-06-01
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The stability and mixing of a density-stratified horizontal flow in a saturated porous...
The mixing of two miscible fluids in motion in a saturated isotropic porous medium and the stability of the density interface between them has been studied. The density interface was formed by a line source introducing a denser fluid into a... 1965-12-01
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Stationary waves and antidunes in alluvial channels
A theoretical and laboratory investigation was made of antidunes and associated stationary waves. The objectives were to determine the factors involved in the formation of antidunes, the characteristics of the stationary waves, and the effects of... 1961-01-01
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Tsunamis -- the propagation of long waves onto a shelf
The various aspects of the propagation of long waves onto a shelf (i.e., reflection, transmission and propagation on the shelf) are examined experimentally and theoretically. The results are applied to tsunamis propagating onto the continental... 1978-11-17
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Tsunamis: The Response of Harbours With Sloping Boundaries to Long Wave Excitation
The influence of sloping boundaries on long wave response of bays and harbours is studies in this work. Laboratory experiments are performed to help validate the theoretical analysis which is applicable to nonbreaking waves. A set of long wave... 1986-06-01
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Tsunamis -- A Model of Their Generation and Propagation
A general solution is presented for water waves generated by an arbitrary movement of the bed (in space and time) in a two-dimensional fluid domain with a uniform depth. The integral solution which is developed is based on a linearized... 1972-06-01
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Steady flow to tile drains above an impervious layer -- a theoretical study
Existing analytical solutions for vertical influent seepage flow to an infinite series of tile drains underlain by an impervious layer do not adequately consider the free surface nor give solutions for the drain diameter (see Figure 1). The... 1965-01-01
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Incipient transport of silt-sized sediments
Laboratory experiments were conducted to determine the influence of stream bed shear stress and water chemistry on the sediment transport rate for silt-sized particles near the critical threshold for motion. Experiments were conducted in two large... 1998-05-01
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Application of similarity principles and turbulence research to bed-load movement
[No abstract] 2013-05-24
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Laboratory studies of the roughness and suspended load of alluvial streams
This report describes research work done under Contract No. DA-25-075-eng-3866 with the U. S. Army, Corps of Engineers, Missouri River Division, Omaha, during the period 1954-1957, on problems of suspended load transport in alluvial streams. A... 1957-12-01
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The runup of long waves
This is a study of the fundamental physical processes of the runup of long waves with the objective to understand some coastal effects of tsunamis. The runup of nonbreaking long waves on plane beaches is studied and an exact solution is... 2007-09-01
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Buoyant slot jets into stagnant or flowing environments
The diffusion following the release of a buoyant slot jet into a confined, uniformly flowing environment has been studied. A dimensionless analysis reveals the complexity of the problem; there are in general four governing dimensionless numbers.... 1971-04-01
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Scour and fill in ephemeral streams
The classical concept that mean bed elevation over an entire stream reach is lowered by scour during flood-wave passage and is restored by deposition in the waning flood phase (mean-bed scour and fill) can be challenged. The alternative that both... 1975-11-01
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Longitudinal dispersion in nonuniform isotropic porous media
A theoretical and experimental investigation has been made of the longitudinal dispersion of chemically and dynamically passive solutes during flow through nonuniform, isotropic porous media. Both theoretical and experimental results are limited... 1984-06-01
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Analysis of air-bubble plumes
The air-bubble plume induced by the steady release of air into water has been analyzed with an integral technique based on the equations for conservation of mass, momentum and buoyancy. This approach has been widely used to study the behavior of... 1970-09-01
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Observations of breaking waves on sloping bottoms by use of laser Doppler velocimetry
Wave breaking is investigated experimentally by use of laser doppler velocimetry for two cases: a plunging breaker and a spilling breaker. Specifically, emphasis is given to the kinematics at breaking, the early breaking phase, and the turbulent... 1987-05-01
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Effects of surface chemistry on coagulation of submicron iron oxide particles...
Particles in the colloidal size range, i.e. smaller than 10^(-6) meter, are of interest in environmental science and many other fields of science and engineering. Since aqueous oxide particles have high specific surface areas they adsorb ions and... 1988-05-01
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Measurement and interpretation of acid rainfall in the Los Angeles Basin
The purpose of the work was to define the extent, degree and pertinent chemical characteristics of acid precipitation in the Los Angeles Basin of Southern California. Precipitation samplers were placed at nine locations: Pasadena, Azusa, Big Bear... 1980-02-01
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Catalytic effects of the γ-FeOOH (lepidocrocite) surface on the oxygenation removal...
Previous investigations of Fe(II) oxygenation had resulted in a wide range in the reported rate constant(s). While Fe(II) oxygenation rates are fast in simple laboratory systems (seconds to minutes when pH > 7), actual rates observed in natural... 1980-12-01
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Motions of small boats moored in standing waves
This study was conducted to determine the dynamic characteristics of small boats moored with non-linear-elastic lines in an asymmetrical manner. The motions being considered are surge motions where the moored boat is allowed to move either in the... 1968-08-01
