Searched for: collection%253Air
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Gutierrez, Ivan (author), Lindenbergh, R.C. (author), Watson, Lisa (author), Shelton, Kim (author)
Detailed 3D information on vulnerable archaeological sites can document cultural heritage and contribute to its preservation. The Late Bronze Age Mycenaean cemetery of Aidonia, Greece, is a representative case of a vulnerable site. Tomb looting has occurred sporadically since the 1970s, when the Greek government was made aware of the site....
journal article 2024
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Brandetti, L. (author), Mulders, S.P. (author), Merino Martinez, R. (author), Watson, S.J. (author), van Wingerden, J.W. (author)
Vertical-axis wind turbines (VAWTs) are considered promising solutions for urban wind energy generation due to their design, low maintenance costs, and reduced noise and visual impact compared to horizontal-axis wind turbines (HAWTs). However, deploying these turbines close to densely populated urban areas often triggers considerable local...
review 2024
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Khoshmanesh, S. (author), Watson, S.J. (author), Zarouchas, D. (author)
Wind turbine blades carry the risk of impact damage during transportation, installation, and operation. Such impacts can cause levels of damage that can propagate throughout the structure compromising performance and safety. In this study, the effect of impact damage on fatigue damage propagation in test specimens representative of a spar cap...
journal article 2024
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Zhang, Y. (author), Avallone, F. (author), Watson, S.J. (author)
In this paper, the feasibility of using far-field acoustic measurements as a non-contact monitoring technique for wind turbine blade leading edge erosion is assessed. For this purpose, a DU96 W180 airfoil with several eroded leading edge configurations of different severities is experimentally investigated. The eroded leading edges are designed...
journal article 2023
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Kartal, S. (author), Basu, S. (author), Watson, S.J. (author)
Peak wind gust (Wp) is a crucial meteorological variable for wind farm planning and operations. However, for many wind farm sites, there is a dearth of on-site measurements of Wp. In this paper, we propose a machine-learning approach (called INTRIGUE, decIsioN-TRee-based wInd GUst Estimation) that utilizes numerous inputs from a public-domain...
journal article 2023
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Brandetti, L. (author), Mulders, S.P. (author), Liu, Y. (author), Watson, S.J. (author), van Wingerden, J.W. (author)
The combined wind speed estimator and tip-speed ratio (WSE–TSR) tracking wind turbine control scheme has seen recent and increased traction from the wind industry. The modern control scheme provides a flexible trade-off between power and load objectives. On the other hand, the Kω2 controller is often used based on its simplicity and steady-state...
journal article 2023
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Hasan, Razi (author), Watson, Barry (author), Haworth, Narelle (author), Oviedo-Trespalacios, O. (author)
Despite a strong reliance on enforcement approaches to prevent drug driving in Australia, this behaviour is still prevalent. The objective of this study was to investigate the influence of problematic drug use (i.e., showing indications of addiction), exposure to roadside drug testing, the use of detection avoidance strategies, and perceptions...
journal article 2023
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Cheneka, B.R. (author), Watson, S.J. (author), Basu, S. (author)
Only a few studies on the overall impact of climate change on offshore wind power production and wind power ramps in the North Sea region have been published. This study focuses on the characteristics of expected wind power production and wind power ramps in the future climate aided by the classification of circulations patterns using a self...
journal article 2023
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Hasan, Razi (author), Watson, Barry (author), Haworth, Narelle (author), Oviedo-Trespalacios, O. (author)
Drug driving is recognised as a major road safety problem in many countries. In Australia, the primary response to this problem involved the adoption of roadside drug testing (RDT), which was modelled on the policies and practices used to conduct random breath testing (RBT) for alcohol. However, there remain important differences in the way that...
journal article 2023
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Ollier, S. (author), Watson, S.J. (author)
Mesoscale meteorological phenomena, including atmospheric gravity waves (AGWs) and including trapped lee waves (TLWs), can result from flow over topography or coastal transition in the presence of stable atmospheric stratification, particularly with strong capping inversions. Satellite images show that topographically forced TLWs frequently...
journal article 2023
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Khoshmanesh, S. (author), Watson, S.J. (author), Zarouchas, D. (author)
In this paper, a new indicator to localize fatigue damage in a fibre glass composite structure, i.e. spar cap to shear web thick adhesive joint of a wind turbine blade, is presented. This indicator is based on the effect of damping on the phase of the mode shapes of the structure. When fatigue damage occurs, damping increases in the defective...
journal article 2023
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Brandetti, L. (author), Liu, Y. (author), Pamososuryo, A.K. (author), Mulders, S.P. (author), Watson, S.J. (author), van Wingerden, J.W. (author)
On-shore horizontal-axis wind turbines (HAWTs) provide a cost-effective solution for low carbon electricity generation. However, public acceptance is still a problem. A possible alternative to a HAWT is a vertical-axis wind turbine (VAWT), which is more visually appealing and less noisy. Furthermore, the inherent omni-directionality of VAWTs...
journal article 2023
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Zhang, Y. (author), Avallone, F. (author), Watson, S.J. (author)
In recent years, with the development of the wind power industry and the increase in the number of wind turbines, the condition monitoring of blades and the detection of damage are increasingly important. In this work, a new non-contact damage-detection approach is experimentally investigated based on the measurement of airfoil aerodynamic noise...
journal article 2022
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Gosseye, J. (author), Watson, Donald (author)
By the 1970s, when economics, management and scientific methods had gained currency, the personal service of an individual architect had become the corporate service of an architectural firm, while the practice of architecture had become less a profession and more and more a business. Furthermore, beginning in the 1970s, to counter the...
journal article 2022
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Zhang, Y. (author), Avallone, F. (author), Watson, S.J. (author)
In this work, aimed at the development of an aeroacoustics-based wind turbine blade damage detection approach, the noise scattered from two airfoils with damage at the trailing edge or at the leading edge is investigated. Four trailing edge cracks (with width of 0.2, 0.5, 1.0 and 2.0 mm) and four leading edge erosion configurations (consisting...
journal article 2022
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Barth, Stephan (author), Carlson, Ola (author), Carroll, James (author), Kariniotakis, Georges (author), Kolios, Athanasios (author), Mann, Jakob (author), Muskulus, Michael (author), Watson, S.J. (author)
contribution to periodical 2022
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Watson, S.J. (author)
Wind energy continues to make great strides in its contribution to the net CO2-zero targets of countries around the world. Both wind farms onshore and offshore are being built, but scientific challenges lie ahead if their generation is to be both reliable and economic. These challenges relate to better understanding the characteristics of the...
contribution to periodical 2022
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Brandetti, L. (author), Liu, Y. (author), Mulders, S.P. (author), Ferreira, Carlos (author), Watson, S.J. (author), van Wingerden, J.W. (author)
In recent years, industrial controllers for modern wind turbines have been designed as a combined wind speed estimator and tip-speed ratio (WSE-TSR) tracking control scheme. In contrast to the conventional and widely used Kω 2 torque control strategy, the WSE-TSR scheme provides flexibility in terms of controller responsiveness and...
journal article 2022
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Verma, A. (author), Zappalá, D. (author), Sheng, Shawn (author), Watson, S.J. (author)
Condition-based maintenance using routinely collected Supervisory Control and Data Acquisition (SCADA) data is a promising strategy to reduce downtime and costs associated with wind farm operations and maintenance. New approaches are continuously being developed to improve the condition monitoring for wind turbines. Development of normal...
journal article 2022
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Peter, R.A. (author), Zappalá, D. (author), Schamboeck, Verena (author), Watson, S.J. (author)
This paper presents a novel prognostic method to estimate the remaining useful life (RUL) of generators using the SCADA (Supervisory Control And Data Acquisition) systems installed in wind turbines. A data-driven wind turbine anomaly classification method is developed. The anomalies are quantified into a health indicator to measure the component...
journal article 2022
Searched for: collection%253Air
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