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The effect of water wave conditions and geometrical parameters of a fixed Oscillating Water Column Wave Energy Converter on its hydrodynamic performance
Watanabe 112 2505 Correa Rd, Honolulu, HI, United StatesDr. Ayrton Alfonso Medina Rodriguez Postdoctoral Researcher Applied Research Laboratory and Department of Ocean and Resources Engineering University of Hawaiʻi at Mānoa Location Information **This seminar will be held both in person (Watanabe Hall 112) and over Zoom** Meeting ID: 961 6222 2366 Passcode: OREseminar https://hawaii.zoom.us/j/96162222366 In order to achieve maximum pneumatic power in an Oscillating Water Column (OWC) device, it is crucial for the chamber to operate as close to the resonance condition as possible. This means that the frequency of the incident wave must match the resonant frequency of the converter. This resonant frequency is influenced not only
MS Plan B Defense: Using Differential Pressure sensor arrays to identify wake structures created by a heaving and pitching foil
zoom See link in announcementGary Glass Master’s Student Department of Ocean and Resources Engineering University of Hawai’i at Mānoa This defense will be held via zoom Meeting ID: 936 1860 0974 Passcode: GaryMS https://hawaii.zoom.us/j/93618600974 Inspired by the lateral line sensory system of fish, sensor arrays distributed over the surface of underwater vehicles can be used to sense the fluid surroundings. While previous studies have used such a system to compensate for fluid forces acting on a vehicle, here the goal is to use the distributed pressure sensors to detect nearby fin wake patterns, as is done by schooling fish. This study aims to design
Advancements in passive acoustic monitoring: A framework for automated tracking of marine mammals
Watanabe 112 2505 Correa Rd, Honolulu, HI, United StatesDr. Pina Gruden Acoustics Researcher Cooperative Institute for Marine and Atmospheric Research and Department of Ocean Resources Engineering University of Hawaiʻi at Mānoa Location Information **This seminar will be held both in person (Watanabe Hall 112) and over Zoom** Meeting ID: 961 6222 2366 Passcode: OREseminar https://hawaii.zoom.us/j/96162222366 Passive acoustic monitoring (PAM) is an efficient tool for studying acoustically active sources such as marine mammals. Using a variety of sensors and array configurations, PAM can provide insights into species identity, movements, behaviors and abundance of populations, and is thus an invaluable tool for assessing and monitoring populations. With the advancement of
MS Plan B Defense: Analysis of XBeach non-hydrostatic model capability in processing SWAN spectral input
POST 723 1680 East-West Road, Honolulu, HI, United StatesMalia Selman Master’s Student Department of Ocean and Resources Engineering University of Hawai’i at Mānoa **This defense will be held both in person (POST 723) and over Zoom** Meeting ID: 918 3466 1004 Passcode: MaliaMS https://hawaii.zoom.us/j/91834661004 Numerical models have become an industry staple for identifying and predicting coastal conditions. These models are used in engineering design and hazard mitigation with implication for public and infrastructure safety. Open-sourced model packages are attractive options as they promote collaboration between academics and working professionals in the development and improvement of the source code. Developed by the Delft University of Technology, the nearshore model
MS Plan A Defense: Using Nonhydrostatic XBeach to Simulate Wave Transformations in Fringing Reef Environment
POST 723 1680 East-West Road, Honolulu, HI, United StatesJonathan Chase Master’s Student Department of Ocean and Resources Engineering University of Hawai’i at Mānoa **This defense will be held both in person (POST 723) and over Zoom** Meeting ID: 947 3961 2246 Passcode: ORE https://hawaii.zoom.us/j/94739612246 The scope of this study is to assess the feasibility and limitations of using the Nonhydrostatic version of XBeach (NonhXB, a two-dimensional (2D), phase resolved, depth integrated numerical model) to study the effects of nearshore wave transformations in a fringing reef environment. This study focused on finding the optimal grid size to simulate the breaker zone characteristics in a fringing reef environment by comparing
PhD Defense: Enhanced Fully Nonlinear Boussinesq-type Equations in Conserved Variable Form and Linear Analytical Properties with Compact Finite Difference Schemes
POST 723 1680 East-West Road, Honolulu, HI, United StatesTroy W. Heitmann PhD Candidate Department of Ocean and Resources Engineering University of Hawai’i at Mānoa **This defense will be held both in person (POST 723) and over Zoom** Meeting ID: 974 2551 3125 Passcode: ORE https://hawaii.zoom.us/j/97425513125 In coastal engineering applications, Boussinesq-type models are limited by orders of approximation originating in both the governing equations and numerical schemes employed. Dispersive model solutions reflect a composition of approximations dependent upon finite sampling intervals. This study aims to improve understanding of both theoretical and numerical facets, with the end goal of strengthening practitioner awareness in model applicability. A modern approach to parameterize
Seminar: Autonomous Robots Traversing Extreme Environments
Bilger Hall 150 2545 McCarthy Mall, Honolulu, HI, United StatesDr. Frances (Frankie) Zhu Assistant Researcher, HSGC Associate Director Hawai’i Institute of Geophysics and Planetology University of Hawai‘i at Mānoa Location Information **This seminar will be held both in person (Bilger Hall 150) and over Zoom** https://hawaii.zoom.us/j/95081858686 Meeting ID: 950 8185 8686 Passcode: OREseminar Exploring extreme terrain is pertinent for extraplanetary surface exploration and search and rescue missions here on Earth. These high-risk operations are best carried out by autonomous robots, minimizing harm to humans. In this talk, I will describe the difficulties associated with robots traversing extreme terrain and proposed an autonomy architecture. The robot follows an encoded procedure
UH Mānoa Event: SOEST Open House
2023 SOEST Open House The 2023 SOEST Open House will be held on Saturday, October 21 from 10 am – 2 pm! This one-day event will showcase research, education, and service programs conducted by SOEST faculty, students, and staff. We’ll have a diverse array of entertaining and educational hands-on activities, demonstrations, poster and video displays, lab tours, and just-for-fun activities. This year, we have 2 of our faculty participating, Dr. Deniz Gedikli & Dr. Mike Krieg! Dr. Gedikli will have an exhibition outside HIG 109 about "Fluid Harmonies: exploring the Dance of Ocean Structures and Waves". Dr. Krieg will have his
Seminar: Research Cruise KM-2312A,B: ACO Service and DWS Deployment
Bilger Hall 150 2545 McCarthy Mall, Honolulu, HI, United StatesClara Encke, Tyler Inkley, Kei Manabe, Will Robert, Merritt Shepherd, & Guilherme Silva Department of Ocean & Resources Engineering University of Hawai‘i at Mānoa Location Information **This seminar will be held both in person (Bilger Hall 150) and over Zoom** https://hawaii.zoom.us/j/95081858686 Meeting ID: 950 8185 8686 Passcode: OREseminar The ALOHA Cabled Observatory (ACO) 100 km north of Oahu at Station ALOHA (A Long-term Oligotrophic Habitat Assessment) is the deepest (4728 m) power and internet node on the planet, returning oceanographic data from the seafloor in realtime to shore. The ACO has been operational with plug-and-play capability since 6 June 2011.
Seminar: Case Study of the Application of Wave Energy Converter Performance Metrics: Experimental Findings of the Fixed Halona Oscillating Water Column
Bilger Hall 150 2545 McCarthy Mall, Honolulu, HI, United StatesNicholas Ulm Ph.D. Student Department of Ocean and Resources Engineering University of Hawai’i at Mānoa Location Information **This seminar will be held both in person (Bilger Hall 150) and over Zoom** https://hawaii.zoom.us/j/95081858686 Meeting ID: 950 8185 8686 Passcode: OREseminar The study of oscillating water column (OWC)-type wave energy converters (WEC) has primarily focused on applications in the nearshore environment with an end use in residential power grids. This study examines the power performance of the Halona OWC geometry relative to different blue economy energy objectives that focus on providing power in the intermediate-water-depth environment. The method examines power performance through
Seminar: A Numerical Study of Effects of Perforation Layouts on Wave Energy Dissipation Caused by a Submerged Perforated Breakwater in Front of a Vertical Seawall
Bilger Hall 150 2545 McCarthy Mall, Honolulu, HI, United StatesBrady Halvorson Ph.D. Student Department of Ocean and Resources Engineering University of Hawai’i at Mānoa Location Information **This seminar will be held both in person (Bilger Hall 150) and over Zoom** https://hawaii.zoom.us/j/95081858686 Meeting ID: 950 8185 8686 Passcode: OREseminar Perforated structures are a promising alternative to standard sea walls and breakwaters for dissipating wave energy and protecting coastlines. Perforated marine structures can effectively remove wave energy from ocean waves by the energy loss associated with the flow through the perforations in the structure. Understanding the factors that may affect the hydrodynamic characteristics of flow through a perforated plate is important
Seminar: Sea Engineering’s Specializations and Projects Throughout the Pacific
Bilger Hall 150 2545 McCarthy Mall, Honolulu, HI, United StatesChis Conger Vice President of Sea Engineering Director of Engineering Division at Sea Engineering Location Information **This seminar will be held both in person (Bilger Hall 150) and over Zoom** https://hawaii.zoom.us/j/95081858686 Meeting ID: 950 8185 8686 Passcode: OREseminar Sea Engineering, Inc. (SEI) was founded in 1973 by University of Hawai‘i graduate students to provide marine-related engineering, construction, and diving services locally and throughout the broader Pacific Basin. SEI, homebased in Hawai‘i, has 50 years of experience working on coastal, marine, and waterfront projects in the Hawaiian Islands, as well as Guam, Diego Garcia, and CNMI. Our core services include geophysical