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  • Contact and impact dynamic modeling capabilities of LS-DYNA for fluid-structure interaction problems

    Creator:
    Challa, Ravi
    Abstract:
    Fluid-structure interaction (FSI) is a very interesting and challenging multi-disciplinary field involving interaction of a movable or deformable structure with an internal or surrounding fluid flow. FSI plays a pivotal role in many different types of real-world situations and practical engineering applications involving large structural deformation and material or geometric...
    Resource Type:
    Masters Thesis
    Full Text:
    accelerations was calibrated with classical von Karman and Wagner closed-form solutions and an equivalent

  • Extreme Wave Runup and Runup Variability on Beaches

    Creator:
    Li, Chuan
    Abstract:
    Wave runup is an important physical process that affects nearshore sediment transport, coastal erosion, and flooding. Large and unexpected runup events can also be dangerous to beach goers. Extreme runup statistics are essential parameters used in engineering design of marine structures and in coastal management. Although the study of runup...
    Resource Type:
    Dissertation
    Full Text:
    and Runup Variability on Beaches Abstract approved: H. Tuba Özkan-Haller Wave runup is an

  • Near-Surface Response of Beach Sand : An Experimental Investigation

    Creator:
    Adams, Rachel Katie
    Abstract:
    The near-surface region of a coastal sediment bed is complex and dynamic. At some sites, near-surface sediment deposits are susceptible to extreme events, such as tsunamis or other large overflows, which induce high shear stresses on the sediment bed. The specific properties of sediment beds subjected to such extreme loading...
    Resource Type:
    Masters Thesis
    Full Text:
    Response of Beach Sand: An Experimental Investigation Abstract approved: H. Benjamin Mason Keywords

  • Wave propagation processes at the mouth of the Columbia River

    Creator:
    Andes, Lisa (Lisa Christine)
    Abstract:
    The mouth of the Columbia River (MCR) has a longstanding reputation of hazardous navigational conditions. This reputation has been developing since the first ship, the Columbia, traversed through the inlet in 1792. The hazardous conditions are related to the large waves and strong tidal currents that are common in the...
    Resource Type:
    Masters Thesis
    Full Text:
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  • Garbage in, garbage out? An empirical look at oracle mistakes by end-user programmers

    Creator:
    Phalgune, Amit
    Abstract:
    End-user programmers, because they are human, make mistakes. However, past research has not considered how visual end-user debugging devices could be designed to ameliorate the effects of mistakes. This paper empirically examines oracle mistakes mistakes users make about which values are right and which are wrong to reveal differences in...
    Resource Type:
    Masters Thesis
    Full Text:
    in the form of visual devices. Woodstein [Wagner and Lieberman 2004] is a software agent that

  • Tsunami Simulation Using OpenSees : Validation of Bridge Response and Exploration of Shallow Water Flow

    Creator:
    Cressman, Luke R.
    Abstract:
    The finite element software framework, OpenSees, has been used by researchers to simulate the response of structural and geotechnical systems to earthquake loading. Implementation of the Particle Finite Element Method (PFEM) has made it possible to simulate hydrodynamic forces through fluid-structure interaction (FSI) in OpenSees. To validate the FSI implementation...
    Resource Type:
    Masters Thesis
    Full Text:
    : Michael H. Scott The finite element software framework, OpenSees, has been used by researchers to

  • Tsunami Loading on Coastal Infrastructure

    Creator:
    Xie, Zhongliang
    Abstract:
    The safety of coastal infrastructure has been a concern after the Indian Ocean Tsunami in 2004 and the Great East Japan Tsunami in 2011. The western coast of the United States is also exposed to tsunami hazards due to the Cascadia subduction zone. Therefore, it is critical to design coastal...
    Resource Type:
    Dissertation
    Full Text:
    Coastal Infrastructure Abstract approved: Michael H. Scott The safety of coastal infrastructure has

  • Hybrid approach to estimating nearshore bathymetry using remote sensing

    Creator:
    Catalán Mondaca, Patricio A.
    Abstract:
    The characterization of bathymetry and its time evolution is very important for both oceanographic science applications, and for societal reasons relating to coastal engineering and development. Historically, the process of depth surveying has been costly and labor-intensive. This is especially true in nearshore regions, hence a method that is both...
    Resource Type:
    Masters Thesis

  • A novel framework for uncertainty propagation in river systems based on performance graphs using two-dimensional hydrodynamic modeling

    Creator:
    Gifford-Miears, Christopher H.
    Abstract:
    This thesis presents a novel approach for propagation of uncertainty in river systems. Errors in data observations and predictions (e.g., stream inflows), in model parameters, and resulting from the discretization of continuous systems, all point to the need to accurately quantify the amount of uncertainty carried through the modeling process....
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Christopher H. Gifford

  • 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