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Journal of Renewable and Sustainable Energy, ISSN 1941-7012, 07/2011, Volume 3, Issue 4, pp. 043104 - 043104-12
Modern wind farms comprised of horizontal-axis wind turbines (HAWTs) require significant land resources to separate each wind turbine from the adjacent turbine... 
GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY | wind turbines | aerodynamics | environmental factors | ENERGY & FUELS | wind power plants
Journal Article
Annual Review of Fluid Mechanics, ISSN 0066-4189, 01/2009, Volume 41, Issue 1, pp. 17 - 33
I review the concept of Optimal vortex formation and examine its relevance to propulsion in biological and bio-inspired systems, ranging from the human heart... 
Aerodynamics | Hydrodynamics | Flying | Cardiovascular flows | Swimming | cardiovascular flows | VELOCITY | aerodynamics | SQUID | PHYSICS, FLUIDS & PLASMAS | FORMATION NUMBER | hydrodynamics | WAKE | FLOW-THROUGH | swimming | FLUID | FLAT PLATES | flying | RING FORMATION | JET | LAGRANGIAN COHERENT STRUCTURES | Bioengineering | Research | Vortex-motion | Fluid dynamics
Journal Article
Nature, ISSN 0028-0836, 07/2017, Volume 547, Issue 7664, pp. 406 - 407
Journal Article
Nature, ISSN 0028-0836, 07/2009, Volume 460, Issue 7255, pp. 624 - 626
Recent observations of biologically generated turbulence in the ocean have led to conflicting conclusions regarding the significance of the contribution of... 
TURBULENCE | DRIFT | MULTIDISCIPLINARY SCIENCES | FLOW | Models, Theoretical | Swimming - physiology | Oceans and Seas | Animals | Computer Simulation | Rheology - instrumentation | Water Movements | Scyphozoa - physiology | Environmental aspects | Turbulence | Animal migration | Research | Marine fauna | Viscosity | Ocean currents
Journal Article
Journal of Applied Mechanics, Transactions ASME, ISSN 0021-8936, 2014, Volume 81, Issue 8
Full-scale, 3D, time-dependent aerodynamics and fluid-structure interaction (FSI) simulations of a Darrieus-type vertical-axis wind turbine (VAWT) are... 
DIRICHLET BOUNDARY-CONDITIONS | MECHANICS | SLIP MESH UPDATE | SPACE-TIME | PERFORMANCE | ISOGEOMETRIC ANALYSIS | MOVING BOUNDARIES | FINITE-ELEMENT COMPUTATION | 3D SIMULATION | FLOW PROBLEMS | GEOMETRY | Finite element method | Usage | Air-turbines | Fluid dynamics | Analysis | Aerodynamics | Design and construction
Journal Article
Experiments in Fluids, ISSN 0723-4864, 7/2015, Volume 56, Issue 7, pp. 1 - 15
We present experimental data to compare and contrast the wake characteristics of a turbine whose rotation is either driven by the oncoming flow or prescribed... 
Engineering | Engineering Fluid Dynamics | Fluid- and Aerodynamics | Engineering Thermodynamics, Heat and Mass Transfer | ROTOR | MECHANICS | AXIS WIND TURBINE | BLADES | PERFORMANCE | PREDICTIONS | DYNAMIC STALL | SIMULATION | PIV | ENGINEERING, MECHANICAL | Comparative analysis | Turbines
Journal Article
Journal Article
Limnology and Oceanography, ISSN 0024-3590, 09/2019, Volume 64, Issue 5, pp. 2161 - 2171
Daily vertical migrations of zooplankton have been shown to affect nutrient distributions and dissolved gas concentrations in lakes and oceans via active... 
OXYGEN | ANIMALS | POPULATION | KRILL | BEHAVIOR | OCEANOGRAPHY | NITROGEN | TURBULENCE | DIFFUSION | ZOOPLANKTON | LIMNOLOGY | OPEN-OCEAN
Journal Article
Journal of Fluid Mechanics, ISSN 0022-1120, 3/2009, Volume 623, pp. 75 - 84
We use a dynamical systems approach to identify coherent structures from often chaotic motions of inertial particles in open flows. We show that particle... 
MECHANICS | MOTION | FLUID | PHYSICS, FLUIDS & PLASMAS | SPHERE | AURELIA-AURITA | EQUATION | FLOW | Aquatic life | Predation | Fluid dynamics | Invertebrates | Dynamical systems
Journal Article
Journal of Experimental Biology, ISSN 0022-0949, 09/2005, Volume 208, Issue 18, pp. 3519 - 3532
The transfer of momentum from an animal to fluid in its wake is fundamental to many swimming and flying modes of locomotion. Hence, properties of the wake are... 
Locomotion | Flying | Swimming | Vortex | Force | Wake | vortex | VORTICES | locomotion | VELOCITY-FIELDS | FLAPPING FLIGHT | JET PROPULSION | DRIFT | swimming | FLUID DYNAMIC FORCES | TRANSPORT | wake | flying | BIOLOGY | BODIES | force | DISPLACEMENT | DERIVATIVES | Models, Theoretical | Swimming - physiology | Biomechanical Phenomena | Animals | Time Factors | Water Movements
Journal Article
Energy Policy, ISSN 0301-4215, 01/2018, Volume 112, pp. 258 - 271
Most of the scholarly focus to date has been on large horizontal axis rather than vertical axis wind turbines. It may be possible to improve the efficiency of... 
Wind energy | Vertical axis wind turbine | Public opinion | Bird kill | Wind farm | ENERGY | ENERGY & FUELS | POLITICS | NIMBYISM | POWER | ATTITUDES | SUPPORT | ENVIRONMENTAL SCIENCES | CALIFORNIA | FARM | ACCEPTANCE | ECONOMICS | ENVIRONMENTAL STUDIES | PERCEPTIONS | Surveys | Air-turbines | Design and construction
Journal Article
Journal of Turbulence, ISSN 1468-5248, 04/2017, Volume 18, Issue 4, pp. 373 - 389
Large eddy simulation (LES) is coupled with a turbine model to study the structure of the wake behind a vertical-axis wind turbine (VAWT). In the simulations,... 
large eddy simulation | self-similarity | Vertical-axis wind turbine | wake model | TUNNEL | MECHANICS | LARGE-EDDY SIMULATION | PHYSICS, FLUIDS & PLASMAS | TURBULENCE | MODEL | Large eddy simulation | Vertical axis wind turbines | Computational fluid dynamics | Computer simulation | Wakes | Mathematical models | Turbines | Self-similarity
Journal Article
Journal of Fluid Mechanics, ISSN 0022-1120, 01/2017, Volume 811, pp. 468 - 486
We present a frame-invariant method for detecting coherent structures from Lagrangian flow trajectories that can he sparse in number, as is the case in many... 
general fluid mechanics | nonlinear dynamical systems | low-dimensional models | MECHANICS | PHYSICS, FLUIDS & PLASMAS | FIELD | PARTICLE TRACKING | DYNAMICS | Fluid mechanics | Eulers equations | Flow velocity | Lagrange multiplier | Kinematics
Journal Article
Journal of Fluid Mechanics, ISSN 0022-1120, 02/2014, Volume 740, pp. 61 - 96
The formation and pinch-off of non-axisymmetric vortex rings is considered experimentally. Vortex rings are generated using a non-circular piston-cylinder... 
wakes/jets | biological fluid dynamics | vortex flows | PHYSICS, FLUIDS & PLASMAS | MODEL LEFT-VENTRICLE | FORMATION NUMBER | FLUID-MECHANICS | PARTICLE IMAGE VELOCIMETRY | ELLIPTIC JETS | MECHANICS | 2-DIMENSIONAL TURBULENCE | WAKE DYNAMICS | SWIMMING PERFORMANCE | LAGRANGIAN COHERENT STRUCTURES | MITRAL-VALVE | Atoms & subatomic particles | Velocity | Vortices
Journal Article
Measurement Science and Technology, ISSN 0957-0233, 05/2018, Volume 29, Issue 7, p. 75401
We develop and characterize an image processing algorithm to adapt single-camera defocusing digital particle image velocimetry (DDPIV) for three-dimensional... 
image processing | natural particulate | DDPIV | 3D PTV | zooplankton | INSTRUMENTS & INSTRUMENTATION | ENGINEERING, MULTIDISCIPLINARY | FLUID | DPIV | PARTICLE-IMAGE-VELOCIMETRY | FLOW
Journal Article
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, ISSN 0027-8424, 07/2019, Volume 116, Issue 29, pp. 14495 - 14500
Journal Article