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Filtering by: Creator Carlson, Harry L. Remove constraint Creator: Carlson, Harry L. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering Rights Statement In Copyright Remove constraint Rights Statement: In Copyright

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  • Boulder Transport by High Energy Surge

    Creator:
    Harry, Samuel T.
    Abstract:
    Boulder transport models have been used to develop a historical record of hydrodynamic events. This is done by evaluating the size, location, and composition of boulders that have been removed from their region of formation. Boulder transport is difficult to predict, even under laboratory conditions. Experiments were conducted to evaluate...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Samuel Harry for the degree of

  • Experimental study of counter-propagating solitary wave collisions

    Creator:
    Chen, Yongshuai
    Abstract:
    To better understand the extreme local amplification of tsunami, the experimental investigation on counter-propagating solitary wave collisions over a horizontal bottom was conducted using the optical measurement techniques: Particle Image Velocimetry (PIV), and Laser Induced Fluoresce (LIF). Head-on collisions and oblique collisions of equal-amplitude as well as unequal-amplitude waves were...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ Harry Yeh To better understand the extreme local amplification of

  • Three Topics on Coastal Hazards : Propagation, Transformation, and Impact

    Creator:
    Ko, Harrison T.
    Abstract:
    An understanding of natural coastal hazards is essential for improving resilience of coastal communities. Effective management of coastal hazards relies on prediction tools and mitigation structures that have been designed to handle the dynamic coastal system. This dissertation is a collection of manuscripts that cover a diverse range of fundamental...
    Resource Type:
    Dissertation
    Full Text:
    Coastal Hazards: Propagation, Transformation & Impact Abstract approved: Harry Yeh An understanding of

  • Long Wave Amplification in a Coral-Reef Lagoon

    Creator:
    Bheeroo, Vivek Anand
    Abstract:
    A series of laboratory experiments were conducted to study the wave field in the inner lagoon excited by ‘long’ incident waves. Three cases were considered: Cases A, B and C presenting incident waves of wavelength with factors of 1, 2 and 2.5 times the width of the reef respectively. The...
    Resource Type:
    Masters Thesis
    Full Text:
    . Abstract approved: ______________________________________________________ Harry Yeh A series of

  • The Effects of Debris Loading on the Performance of a Tsunami Evacuation Building for Life Safety

    Creator:
    Snyder, Snyder
    Abstract:
    In recent years, tsunami events have caused great devastation and loss of life around the globe. The coast of Oregon is highly vulnerable to a nearfield tsunami event caused by a Cascadia Subduction Zone earthquake, yet lacks a clear plan for evacuation and disaster mitigation. Vertical evacuation is a proposed...
    Resource Type:
    Honors College Thesis
    Full Text:
    . Thanks to Dr. Harry Yeh and Patrick Corcoran. I feel very lucky to have such highly respected members

  • Amplification of solitary waves along a vertical wall

    Creator:
    Li, Wenwen
    Abstract:
    Reflection of an obliquely incident solitary wave at a vertical wall is studied experimentally in the laboratory wave tank. Precision measurements of water-surface variations are achieved with the aid of laser-induced fluorescent (LIF) technique and detailed temporal and spatial features of the Mach reflection are captured. During the development stage...
    Resource Type:
    Dissertation
    Full Text:
    of Solitary Waves along a Vertical Wall Abstract approved: Harry H. Yeh Reflection of an obliquely

  • Effects of Wave Nonlinearity and Vertical Variation of Vegetation Density on Wave Attenuation

    Creator:
    Wu, Wei-Cheng
    Abstract:
    The understanding and prediction how coastal wetland vegetation attenuates wave action has received renewed attention with global climate change impacts and increasing populations on coastlines. Conventional attenuation models utilize empirical drag coefficients, but these coefficients exhibit a wide range of values, and there is some uncertainty in the relative importance...
    Resource Type:
    Dissertation
    Full Text:
    the working of NHWAVE modeling. I am grateful with my committee members, Dr. Harry Yeh, Dr. Tuba

  • On Undular Bores and Solitary Waves in Variable Depth

    Creator:
    Knowles, Jeffrey N.
    Abstract:
    Numerical results are presented using a higher-order pseudo-spectral method in order to solve the Zakharov-Craig-Sulem formulation of the Euler model. We study the effects of variable bathymetry on weakly-dispersive, weakly-nonlinear, shallow water waves. Improved predictions on wave amplitude and shoaling behavior are developed by analytical means in the context of...
    Resource Type:
    Dissertation
    Full Text:
    and Solitary Waves in Variable Depth Abstract approved: Harry H. Yeh Numerical experiments were

  • Centrifuge Modeling of Soil Response to Tsunami-like Rapid Flooding and the Subsequent Drawdown

    Creator:
    Exton, Margaret C.
    Abstract:
    Soil instability from tsunami hazards causes substantial damage to coastal infrastructure (e.g., the damage caused by the 2011 Great East Japan Tsunami, or the Heisei Tsunami). Tsunamis are unpredictable, so it is difficult to obtain field-scale measurements. Simulating tsunamis in a laboratory setting is therefore important to further understanding of...
    Resource Type:
    Dissertation
    Full Text:
    : Harry Yeh H. Benjamin Mason Soil instability from tsunami hazards causes substantial damage to coastal

  • Tsunami inundation : estimating damage and predicting flow properties

    Creator:
    Wiebe, Dane Michael
    Abstract:
    The 2004 Indian Ocean and 2011 Tohoku tsunami events have shown the destructive power of tsunami inundation to the constructed environment in addition to the tragic loss of life. A comparable event is expected for the Cascadia Subduction Zone (CSZ) which will impact the west coast of North America. Research...
    Resource Type:
    Masters Thesis
    Full Text:
    Harry Yeh. I would also like to thank Yong Chen for providing the Clatsop County tax lot data. Lastly