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Filtering by: Creator Mahrt, Larry J. Remove constraint Creator: Mahrt, Larry J. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • The wastewater treatment characteristics of a rotating flighted cylinder

    Creator:
    Hansen, Larry Bruce
    Abstract:
    The rotating flighted cylinder (RFC) was investigated as a potential wastewater treatment deVice. A RFC is a rigid tube with a helically-wound fin attached to the interior surface and operates by flowing wastewater through the tube as it rotates. An 8-inch and 24-inch diameter RFC was tested for solids-liquid separation,...
    Resource Type:
    Masters Thesis
    Full Text:
    flighted cylinder AN ABSTRACT OF THE THESIS OP LARRY BRUCE HANSEN for the MASTER OF SCIENCE (Name

  • A system analysis method for water quality management by flow augmentation

    Creator:
    Worley, John Larry
    Abstract:
    A rapid expansion of population and industrialization in recent years has created new and difficult problems in water resources management. Prudent management of water quality will require that more efficient methods be developed for evaluating large volumes of data on complex river systems, and tabulating the results in a form...
    Resource Type:
    Masters Thesis
    Full Text:
    flow augmentation AN ABSTRACT OF THE THESIS OF John Larry Worley for the Master of Science in

  • Numerical and physical modeling of wave forces on A-Jacks units

    Creator:
    Wise, Larry
    Abstract:
    A numerical model is developed to estimate wave forces on A-Jacks armor units. The forces include drag, inertia, buoyancy, and slamming as the unit penetrates the free surface. The wave force model is used to determine the rigid body motions of the units. Bulk forces on a matrix of units...
    Resource Type:
    Masters Thesis
    Full Text:
    units AN ABSTRACT OF THE THESIS OF Larry Wise for the degree of Master of Science in Civil

  • Sand pumping efficiency of a water ejector apparatus

    Creator:
    Saguanwongse, Suvat
    Abstract:
    The purpose of this investigation is to study the effect of the solid transport capacity in pumping operation: A special type of jet apparatus was investigated which emits a water jet downward counter current to delivery flow, from inside of the suction pipe toward sediment to be excavated. Two sizes...
    Resource Type:
    Masters Thesis
    Full Text:
    and gratitude to his major professor Dr. Larry S. Slotta for his guidance, under- standing

  • Pollution and tidal flushing predictions for Oregon's estuaries

    Creator:
    Choi, Byungho
    Abstract:
    The overriding goal of this study was to provide first order estimates of dilution and tidal flushing of waste discharges released hypothetically into various Oregon estuaries during critical low flows and tides. Causal relationships between discharged wastes and subsequent estuarine response were studied. Various approaches to determine the assimilative capacity...
    Resource Type:
    Masters Thesis
    Full Text:
    express my gratitude to Dr. Larry S. Slotta for his generous guidance and encouragement during the

  • Numerical simulation of sedimentation and circulation in rectangular marina basins

    Creator:
    Askren, David, 1947-
    Resource Type:
    Masters Thesis
    Full Text:
    privacy' Dr. Larry S. Slotta The shear-induced circulation and sedimentation of cohesive particles in

  • Seasonal variations in tidal dynamics, water quality and sediments in the Siuslaw Estuary

    Creator:
    Utt, Michael Ernest
    Abstract:
    Seasonal data on tides, water quality and sediments in the Siuslaw Estuary were collected. Tide and velocity data were analyzed to evaluate damping conditions in the estuary. The system was found to approximate a weakly damped standing wave. A strong relationship of damping conditions to river flow was observed. The...
    Resource Type:
    Masters Thesis
    Full Text:
    Redacted for Privacy Larry S. Slotta Seasonal data on tides, water quality and sediments in the Siuslaw

  • Chetco River tidal hydrodynamics and associated marina flushing

    Creator:
    Tang, Shing Shirly
    Abstract:
    The purpose of this study was to provide an understanding of the interrelationships between fresh and salt water Circulation, tidal transport and flushing patterns in the Chetco River estuary and its boat basins. Field work and water quality measurements were conducted at the entrance of the Chetco River during 1975...
    Resource Type:
    Masters Thesis
    Full Text:
    1.7 41.8 (2) 3 16.3 121 257 166 164 223 99 43.5 17.7 8.6 5.2 6.3 94.1 Sources: (1) J. Duggan

  • Pressure distribution around a circular cylinder resting on a flat boundary in an oscillating fluid

    Creator:
    Johnson, Ronald Ernest
    Abstract:
    This study was undertaken to provide information needed in the design of ocean outfalls. A review of past investigations concerning forces on submerged objects is presented. Objects independent of any boundary and cylinders in boundary contact are considered. A solution for pressure distribution about a circular cylinder resting on a...
    Resource Type:
    Masters Thesis
    Full Text:
    possible. Appreciation is extended to Dr. Larry Slotta for his advice and assistance in the preparation

  • Entering streamflow effects on currents of a density stratified model reservoir

    Creator:
    Elwin, Elmer Harvey
    Abstract:
    The effect of entering streamflow on currents of a density stratified reservoir has been studied in a laboratory model to provide insight into the prediction, control, and maintenance of quality water discharge from a thermally stratified reservoir. Twenty experiments were performed using various concentrations of a sodium chloride solution to...
    Resource Type:
    Masters Thesis
    Full Text:
    Privacy Larry S. Slotta The effect of entering streamflow on currents of a density stratified reservoir