Impact of Tsunamis on Near Shore Wind Power Units

With the number of wind power units (WPUs) on the rise worldwide, it is inevitable that some of these would be exposed to natural disasters like tsunamis and it will become a necessity to consider their effects in the design process of WPUs. This study initially attempts to quantify the forces actin...

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Bibliographic Details
Main Author: Parambath, Ashwin
Other Authors: Lynett, Patrick
Format: Others
Language:en_US
Published: 2011
Subjects:
WPU
Online Access:http://hdl.handle.net/1969.1/ETD-TAMU-2010-12-8919
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spelling ndltd-tamu.edu-oai-repository.tamu.edu-1969.1-ETD-TAMU-2010-12-89192013-01-08T10:42:01ZImpact of Tsunamis on Near Shore Wind Power UnitsParambath, AshwinWPUwind turbinetsunamiboresurgeWith the number of wind power units (WPUs) on the rise worldwide, it is inevitable that some of these would be exposed to natural disasters like tsunamis and it will become a necessity to consider their effects in the design process of WPUs. This study initially attempts to quantify the forces acting on an existing WPU due to a tsunami bore impact. Surge and bore heights of 2m, 5m and 10m are used to compute the forces using the commercially available full 3D Navier Stokes equation solver FLOW3D. The applicability of FLOW3D to solve these types of problems is examined by comparing results obtained from the numerical simulations to those determined by small scale laboratory experiments. The simulated tsunami forces on the WPU are input into a simplified numerical structural model of the WPU to determine its dynamic response. The tsunami force is also used to obtain base excitation which when applied on the WPU would be equivalent dynamically to the tsunami forces acting on it. This base excitation is useful to obtain the response of the WPU experimentally, the setup for which is available at University of California, San Diego's (UCSD) Large High Performance Outdoor Shake Table (LHPOST). The facility allows full scale experimental setup capable of subjecting a 65kW Nordtank wind turbine to random base excitations. A stress analysis of turbine tower cross section is performed in order to assess the structural integrity of the WPU. It has been determined that the WPU is unsafe for bore/surge heights above 5 m. It has also been postulated that the structural responses could be considerable in case of the taller multi megawatt wind power units of present day.Lynett, PatrickHorillo, Juan J.2011-02-22T22:24:42Z2011-02-22T23:50:12Z2011-02-22T22:24:42Z2011-02-22T23:50:12Z2010-122011-02-22December 2010BookThesisElectronic Thesistextapplication/pdfhttp://hdl.handle.net/1969.1/ETD-TAMU-2010-12-8919en_US
collection NDLTD
language en_US
format Others
sources NDLTD
topic WPU
wind turbine
tsunami
bore
surge
spellingShingle WPU
wind turbine
tsunami
bore
surge
Parambath, Ashwin
Impact of Tsunamis on Near Shore Wind Power Units
description With the number of wind power units (WPUs) on the rise worldwide, it is inevitable that some of these would be exposed to natural disasters like tsunamis and it will become a necessity to consider their effects in the design process of WPUs. This study initially attempts to quantify the forces acting on an existing WPU due to a tsunami bore impact. Surge and bore heights of 2m, 5m and 10m are used to compute the forces using the commercially available full 3D Navier Stokes equation solver FLOW3D. The applicability of FLOW3D to solve these types of problems is examined by comparing results obtained from the numerical simulations to those determined by small scale laboratory experiments. The simulated tsunami forces on the WPU are input into a simplified numerical structural model of the WPU to determine its dynamic response. The tsunami force is also used to obtain base excitation which when applied on the WPU would be equivalent dynamically to the tsunami forces acting on it. This base excitation is useful to obtain the response of the WPU experimentally, the setup for which is available at University of California, San Diego's (UCSD) Large High Performance Outdoor Shake Table (LHPOST). The facility allows full scale experimental setup capable of subjecting a 65kW Nordtank wind turbine to random base excitations. A stress analysis of turbine tower cross section is performed in order to assess the structural integrity of the WPU. It has been determined that the WPU is unsafe for bore/surge heights above 5 m. It has also been postulated that the structural responses could be considerable in case of the taller multi megawatt wind power units of present day.
author2 Lynett, Patrick
author_facet Lynett, Patrick
Parambath, Ashwin
author Parambath, Ashwin
author_sort Parambath, Ashwin
title Impact of Tsunamis on Near Shore Wind Power Units
title_short Impact of Tsunamis on Near Shore Wind Power Units
title_full Impact of Tsunamis on Near Shore Wind Power Units
title_fullStr Impact of Tsunamis on Near Shore Wind Power Units
title_full_unstemmed Impact of Tsunamis on Near Shore Wind Power Units
title_sort impact of tsunamis on near shore wind power units
publishDate 2011
url http://hdl.handle.net/1969.1/ETD-TAMU-2010-12-8919
work_keys_str_mv AT parambathashwin impactoftsunamisonnearshorewindpowerunits
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