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Filtering by: Creator Özkan-Haller, H. Tuba Remove constraint Creator: Özkan-Haller, H. Tuba Degree Name Master of Science (M.S.) Remove constraint Degree Name: Master of Science (M.S.) Subject Ocean waves Remove constraint Subject: Ocean waves

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  • Analysis of waves in the near-field of wave energy converter arrays through image processing

    Creator:
    Black, Colleen
    Abstract:
    Oregon State University conducted a series of laboratory experiments to measure and quantify the near-field wave effects caused within arrays of Wave Energy Converters (WEC). As the waves and WECs interact, the WECs generate radiated waves; these effects vary with the location within the array. Analyzing the near-field waves will...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: ______________________________________________________ Merrick C. Haller

  • On the nearshore impact of wave energy converter arrays

    Creator:
    O'Dea, Annika Magnuson
    Abstract:
    Radiation stresses, defined as the excess flow of momentum due to the presence of waves (Longuet-Higgins, 1964), are the main drivers behind the cross-shore and longshore forcing that results in wave setup, set-down, and longshore currents (e.g. Svendsen, 2006). Longshore currents entrain and transport sediment and therefore play an important...
    Resource Type:
    Masters Thesis
    Full Text:
    , Peter Ruggiero, Tuba Özkan-Haller, and Emily Shroyer for their feedback. Finally, I would like to

  • On the Imaging of Rip Currents in X-band Radar

    Creator:
    Kloster, Rebecca
    Abstract:
    Rip currents pose a serious danger to visitors of bathing beaches; they are also an important process in surf zone circulation. Haller et al. [2014] demonstrated that shore-based X-band radar can be used to compliment in situ measurements of rip currents. However, little is known of the underlying radar imaging...
    Resource Type:
    Masters Thesis
    Full Text:
    , Tuba Özkan-Haller, Dan Cox, and Ed Brook, for their feedback. Last, I would like to thank the

  • Predicting deep water breaking wave severity

    Creator:
    Hovland, Justin
    Abstract:
    Ocean Wave Energy Converters (WECs) operating on the water surface are subject to storms and other extreme events. In particular, high and steep waves, especially breaking waves, are likely the most dangerous to WECs. A method for quantifying the breaking severity of waves is presented and applied to wave data...
    Resource Type:
    Masters Thesis
    Full Text:
    of gravity (m/s2) h Water depth (m) H Wave height (m) Hm0 Spectrally derived significant wave

  • Model Predictive Control for Underwater Robots in Ocean Waves

    Creator:
    Fernández, Daniel C.
    Abstract:
    Underwater robots beneath ocean waves can benefit from feedforward control to reduce position error. This thesis proposes a method using Model Predictive Control (MPC) to predict and counteract future disturbances from an ocean wave field. The MPC state estimator employs a Linear Wave Theory (LWT) solver to approximate the component...
    Resource Type:
    Masters Thesis
    Full Text:
    water depth, but instead is simply proportional to the squared wave height term (H). The rate at which

  • Real-Time Estimation and Prediction of Wave Excitation Forces for Wave Energy Control Applications

    Creator:
    Ling, Bradley A.
    Abstract:
    Wave energy is emerging as a new potential source for renewable energy generation. However, wave energy technology is not currently cost competitive with other more mature renewable energy sources such as wind and solar. One approach that researchers and developers are taking to reduce the cost of wave energy is...
    Resource Type:
    Masters Thesis
    Full Text:
    Depth h 50 m Vertical Center of Gravity (w.r.t mean water line) n/a 0.42 m Generator Damping Raio