Index Catalog // ScholarsArchive@OSU

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:: g H (w) U(w ) fqw) H (w ) H11 h (t) [1/4 I j J1, J2 J, K J-, K° j, k List of Symbols

Nonlinear dynamic response of cable/lumped-body system by direct integration with suppression

Creator:: Sun, Yang, 1959-
Resource Type:: Masters Thesis
Full Text:: ao, 1 aTk = T (6 -0 (1)k) aso aso Substituting Eq.(2.4.5) into (2.4.8), obtains achi k) (171 j e

Hydrodynamic forces on a horizontal cylinder under waves and current

Creator:: Teng, Chung-chu
Abstract:: By assuming the linear superposition principle to be valid, the hydrodynamic forces on a horizontal cylinder under waves and current are examined. In this study, towing a cylinder in waves is used to simulate a cylinder under waves and current. The experimental technique is proved valid through theoretical considerations and...
Resource Type:: Masters Thesis
Full Text:: CYLINDER UNDER WAVES AND CURRENT ABSTRACT APPROVED: Redacted for Privacy Dr. John H. Nath By assuming

Forces on a transverse circular cylinder in a steady uniform flow near a plane boundary

Creator:: Hafen, Blaine
Abstract:: An experimental study was conducted to determine the hydrodynamic forces on smooth and roughened circular cylinders as influenced by a nearby plane boundary. The ambient flow was perpendicular to the cylinder and parallel to the boundary. Measurements were taken in a water channel and a wind tunnel to obtain the...
Resource Type:: Masters Thesis
Full Text:: Redacted for Privacy Abstract approved: Dr. John H. Nath An experimental study was conducted to determine

The analysis of directional wave spectra from current and pressure measurements

Creator:: Lin, Li-hwa
Abstract:: Directional wave spectra have been estimated in this study based upon simultaneous subsurface measurements of current and pressure. Two previously developed methods, the stochastic and deterministic approaches, have been reviewed and restudied. It is demonstrated by means of the Correlation Theorem that the stochastic and deterministic approaches are, under certain...
Resource Type:: Masters Thesis
Full Text:: /2 H (T)e -iaT dTc..(a)=Ci (a)-iQi (a) =limit J j j 21r j TT-° -T/2 i (2.17) where subscript ij

Stability of pipelines under shoaling finite amplitude waves

Creator:: Huang, Min-chih
Resource Type:: Masters Thesis
Full Text:: , W', the depth parameter, d/T 2 , and the wave height parameter, H/T2, is constructed for design

An eigenvalue wave analysis of a fixed semi-immersed rectangular structure

Creator:: Steimer, Robert Bruce
Abstract:: The problem of a fixed rectangular structure of unit width in a train of simple harmonic normally-incident waves is modeled. The solution allows for variable (1) length and draft of structure, (2) differing depths in the three (fore, aft, and beneath the structure) distinct regions, and (3) wave period. The...
Resource Type:: Masters Thesis
Full Text:: taken with the help of Bob Jensen. Dr. P. C. Klingeman and Dr. R. T. Hudspeth reviewed the final draft

Finite amplitude deep water waves : a comparison of theoretical and experimental kinematics and dynamics

Creator:: Jensen, Robert E.
Abstract:: Problems associated with quantification of deep water wave kinematics and dynamics are examined. Summaries of Stokes' theory and Dean's stream function theory are reported. A computer algorithm is developed to solve the hydrodynamic characteristics for Stokes' fifth and third order and linear theories. Tests are initiated to verify the results...
Resource Type:: Masters Thesis
Full Text:: becomes 1 r 2 2, 3. 4 + 2g Lu + w j -g- a = B(t) (2.2.12) The radiation condition recognizes that wave

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:: ratio of lower layer S concentration t a continuous variable denoting time or number of tidal cycle x

Use of benthic sediments as indicators of marina flushing

Creator:: Noble, Scott Morgan
Abstract:: This report presents the findings of a sediment analysis program formulated to determine the flushing potential of various shaped small boat marina basins. Chemical tests regarding volatile solids, Kjeldahl nitrogen, grease and oil, and sulfides were performed with the results compared to established sediment quality criteria. These results were used...
Resource Type:: Masters Thesis
Full Text:: ) Sampling Stations Figure 2. Astoria marina. 7 C J Columbia River c==, 1) I I I 0 [ 100 200 (meters

ScholarsArchive@OSU

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

Nonlinear dynamic response of cable/lumped-body system by direct integration with suppression

Hydrodynamic forces on a horizontal cylinder under waves and current

Forces on a transverse circular cylinder in a steady uniform flow near a plane boundary

The analysis of directional wave spectra from current and pressure measurements

Stability of pipelines under shoaling finite amplitude waves

An eigenvalue wave analysis of a fixed semi-immersed rectangular structure

Finite amplitude deep water waves : a comparison of theoretical and experimental kinematics and dynamics

Pollution and tidal flushing predictions for Oregon's estuaries

Use of benthic sediments as indicators of marina flushing

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