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  • Dynamic response of an offshore structure to measured and simulated stochastic wave forces

    Creator:
    Grecco, Michael G.
    Abstract:
    The dynamic response of an offshore structure to measured and simulated stochastic wave forces is investigated. The theoretical nondeterministic analysis is performed in the frequency domain for a two-dimensional model. The ocean wave system is assumed to be a zero mean, stationary, ergodic Gaussian process described by a one-dimensional wave...
    Resource Type:
    Masters Thesis
    Full Text:
    : Redacted for Privacy Dr. Robertr T. Hugpeth The dynamic response of an offshore structure to measured and

  • Sand waves in a pristine estuary

    Creator:
    Baliga, B. R. (B. Ravindranath)
    Abstract:
    The stochastic and the Fourier theories for sand waves developed by Lee(11) and Hino(6), respectively, for unidirectional flows are extended in order to estimate the rate of sediment turnover (RST) under oscillatory flows in the South Slough estuary, Coos Bay, Oregon. Data were collected by a mechanical and a sonic...
    Resource Type:
    Masters Thesis
    Full Text:
    IN A PRISTINE ESTUARY Abstract approved: Redacted for Privacy Dr. Robert T. Hudspeth The

  • Nonlinear diffraction theory by an eigenfunction expansion of the Green's function

    Creator:
    Chen, Min-Chu
    Abstract:
    A second-order nonlinear diffraction theory is developed for a large diameter circular cylinder under the action of surface gravity waves of finite amplitude in water of-finite depth. Boundary value problems are derived by using a perturbation expansion and the solutions for the diffracted waves are given in terms of Fredholm...
    Resource Type:
    Dissertation
    Full Text:
    EIGENFUNCTION EXPANSION OF THE GREEN'S FUNCTION Abstract approved: Redacted for Privacy V Dr. Robert T

  • Mass transport in laboratory water wave flumes

    Creator:
    Kim, Tae In
    Abstract:
    A complete solution, exact to second-order, for wave motion forced by a hinged-wavemaker of variable-draft is presented. A solution for a piston type wavemaker is also obtained as a special case of a hinged-wavemaker with negative infinite draft. The existing Stokes inviscid theories for mass transport is extended to include...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: _Redacted for Privacy Dr. Robert T. Hddspeth ) C-Y A complete solution, exact to

  • Irregular points in wavemaker boundary value problem

    Creator:
    Tanaka, Yoshihiro
    Abstract:
    A global solution is presented that accurately accounts for the singular behavior at all irregular points. The linearized boundary value problem in a semi-infinite strip in the physical plane is transformed into a smooth unit disk by two successive conformal mappings. The global solution results from a Fredholm integral equation...
    Resource Type:
    Dissertation
    Full Text:
    : Redacted for Privacy Dr. Robert T. Hudspeth A global solution is presented that accurately accounts for

  • Indirect parameter identification algorithm in radial coordinates for a porous medium

    Creator:
    Roley, Kenneth L.
    Abstract:
    The decision to bury high level nuclear wastes in deep geological formations led to the study of the Hanford Nuclear Reservation as one of three possible sites for the first nuclear waste repository in the United States. To adequately evaluate the environmental impact of siting nuclear waste repositories in basalt...
    Resource Type:
    Masters Thesis
    Full Text:
    Algorithm in Radial Coordinates for a Porous Medium Redacted for Privacy Abstract approved:. Robert T

  • Chaos in a long rectangular wave channel

    Creator:
    Bowline, Cynthia M.
    Abstract:
    The Melnikov method is applied to a model of parametrically generated cross-waves in a long rectangular channel in order to determine if these cross-waves are chaotic. A great deal of preparation is involved in order to obtain a suitable form for the application of the Melnikov method. The Lagrangian for...
    Resource Type:
    Dissertation
    Full Text:
    presented on November 24. 1993. Title: Chaos in a Long Rectangular Wave Channel Abstract approved: Robert

  • Application of the generalized Melnikov method to weakly damped parametrically excited cross waves with surface tension

    Creator:
    Fadel, Suzan M.
    Abstract:
    The Wiggins-Holmes extension of the generalized Melnikov method (GMM) is applied to weakly damped parametrically excited cross waves with surface tension in a long rectangular wave channel in order to determine if these cross waves are chaotic. The Lagrangian density function for surface waves with surface tension is simplified by...
    Resource Type:
    Dissertation
    Full Text:
    Waves with Surface Tension Abstract approved: Robert T. Hudspe The Wiggins-Holmes extension of the