S.P. Evans

ORCID: 0000-0001-9521-4201
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About
Contact & Profiles
Research Areas
  • Wind Energy Research and Development
  • Wind and Air Flow Studies
  • Aerodynamics and Fluid Dynamics Research
  • Structural Health Monitoring Techniques
  • Fluid Dynamics and Vibration Analysis
  • Plant Water Relations and Carbon Dynamics
  • Soil Carbon and Nitrogen Dynamics
  • Icing and De-icing Technologies
  • Pleistocene-Era Hominins and Archaeology
  • Tree-ring climate responses
  • Tree Root and Stability Studies
  • Ichthyology and Marine Biology
  • Pesticide and Herbicide Environmental Studies
  • Climate change impacts on agriculture
  • Advanced Data Storage Technologies
  • Coastal wetland ecosystem dynamics
  • Turtle Biology and Conservation
  • Electric Vehicles and Infrastructure
  • Mechanical and Thermal Properties Analysis
  • Forensic Anthropology and Bioarchaeology Studies
  • Bone Metabolism and Diseases
  • Photovoltaic Systems and Sustainability
  • Engineering and Technology Innovations
  • Topology Optimization in Engineering
  • Elasticity and Material Modeling

University of St Andrews
2024

University of Newcastle Australia
2012-2023

Forest Research
2006

Cranfield University
1997-1999

Royal Holloway University of London
1999

Bedford College
1999

Università Cattolica del Sacro Cuore
1995

Three adaptive hypotheses have been forwarded to explain the distinctive Neanderthal face: (i) an improved ability accommodate high anterior bite forces, (ii) more effective conditioning of cold and/or dry air and, (iii) adaptation facilitate greater ventilatory demands. We test these using three-dimensional models Neanderthals, modern humans, and a close outgroup (

10.1098/rspb.2018.0085 article EN Proceedings of the Royal Society B Biological Sciences 2018-04-04

10.1023/a:1005597216804 article EN Climatic Change 1999-01-01

10.1016/j.jweia.2018.08.011 article EN Journal of Wind Engineering and Industrial Aerodynamics 2018-09-10

This paper investigates the applicability of assumed wind fields in International Electrotechnical Commission (IEC) standard 61400 Part 2, design for small turbines, a turbine operating built environment, and effects these have on predicted performance 5 kW Aerogenesis using detailed aeroelastic models developed Fatigue Aerodynamics Structures Turbulence (FAST). Detailed measurements were acquired at two environment sites: from rooftop Bunnings Ltd. warehouse Port Kennedy (PK) (Perth,...

10.1051/rees/2017022 article EN cc-by Renewable Energy and Environmental Sustainability 2017-01-01

Abstract Small‐scale wind turbines have market opportunities in distributed energy generation applications but face future challenges remaining cost competitive compared with solar photovoltaic systems. High unit costs can be attributed to design conservatism when calculating fatigue loads of key structural components such as the blades. In this study, we use aeroelastic software FAST highlight limitations International Electrotechnical Commission 61400‐2:2013 small turbine standard for life...

10.1002/we.2588 article EN cc-by-nc Wind Energy 2020-11-05

We present a mechanistic model of wood tissue development in response to changes competition, management and climate. The is based on refinement the pipe theory, where constant ratio between sapwood leaf area (pipe theory) replaced by conductivity area. Simulated with age, stand density climate allocation or radius, both. central equation model, which calculates carbon (C) allocated leaves pipes, can be parameterized describe contrasting stem behavior different tree species: from (functional...

10.1093/treephys/26.6.703 article EN Tree Physiology 2006-06-01

Abstract Small-scale distributed wind generation faces challenges in being cost competitive due to recent advances solar photovoltaic and battery storage technology. Reductions levelized of energy (LCOE) can be achieved by improvements aerodynamic efficiency, generator controller design, or reducing manufacture. In this paper we present a case study detailing the commercialization novel 200 W high-efficiency diffuser augmented turbine (DAWT). Results include increased rotor bespoke use...

10.1088/1742-6596/1452/1/012014 article EN Journal of Physics Conference Series 2020-01-01

Small wind turbines, when compared to large commercial scale often lag behind with respect research investment, technological development, and experimental verification of design standards. In this study we assess the simplified load equations outlined in IEC 61400.2-2013 for use determining fatigue loading small turbine blades. We compare these calculated loads damage cycles from both measured in-service operation, aeroelastic modelling a 5 kW Aerogenesis turbine. Damage cycle ranges...

10.1088/1742-6596/753/4/042013 article EN Journal of Physics Conference Series 2016-09-01

Detailed computational fluid dynamics simulations for the rostrum of three species sawfish (Pristidae) revealed that negligible turbulent flow is generated from all rostra during lateral swipe prey manipulation and swimming. These results suggest sawfishes are effective stealth hunters may not be detected by their teleost prey's line sensory system pursuits. Moreover, swipes, were found to induce little velocity into surrounding fluid. Consistent with previous data feeding behaviour, these...

10.1111/jfb.13255 article EN Journal of Fish Biology 2017-02-27

Small horizontal-axis wind turbines are likely to operate in a broad range of operating flow conditions, often highly turbulent flow, due, part, their varied site placements. This paper compares the computational simulations performance 5 kW turbine detailed field measurements, with particular focus on impact unsteady conditions drivetrain and generator output. Results indicate that current Blade Element Momentum Theory based aerodynamic models under-predict effect high yaw rotor torque,...

10.1088/1742-6596/753/8/082029 article EN Journal of Physics Conference Series 2016-09-01

This paper presents a method to optimise the material layout of fibreglass-reinforced composite constructed small wind turbine blade. The was developed with intent reducing blade mass without compromising blade’s structural performance or longevity. bi-directional evolutionary optimisation utilises finite element analysis redesign lay structure based on strain energy criterion. Details procedure this are documented in paper. technique applied existing 2.5 m from an Aerogenesis 5 kW turbine....

10.1051/rees/2017006 article EN cc-by Renewable Energy and Environmental Sustainability 2017-01-01

Commercially available high-speed multi-channel data acquisition systems can be expensive to purchase and are generally difficult tailor specific applications. Arduino is an open-source prototyping platform that facilitates the design build of computer controlled for a wide variety uses. This article describes in detail several separate have been integrated simultaneously acquire from sensors on rotor, tower operating 5 kW horizontal-axis wind turbine along with speed direction data. Due...

10.1177/0309524x19862753 article EN Wind Engineering 2019-07-15
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