Results 41 to 50 of about 23,985,715 (300)

Analytical Wake Modeling in Atmospheric Boundary Layers: Accounting for Wind Veer and Thermal Stratification

Journal of Physics: Conference Series
Reliable characterization of wind turbine wakes in the presence of Atmospheric Boundary Layer (ABL) flows is crucial to accurately predict wind farm performance.
Ghanesh Narasimhan, D. Gayme, C. Meneveau   +2 more
semanticscholar   +1 more source

Review on Dynamic Inflow Sensing Layout Optimization for Large-Scale Wind Farms: Wake Modeling, Data-Driven Prediction, and Multi-Objective Uncertainty Optimization

Energies
Large-scale wind farms operate under highly unsteady atmospheric inflows, where transient turbulence, dynamic wake interactions, and inflow-wake coupling reduce energy production and exacerbate turbine loads.
Rongzhe Yang, Tenggang Cui, Zhenman Chen, Shijin Ma, Hongrui Ping, Fulong Wei, Zhenbo Gao, Guanlin Lu, Huiwen Liu, Lidong Zhang   +9 more
doaj   +1 more source

Modeling the near-wake of a vertical-axis cross-flow turbine with 2-D and 3-D RANS [PDF]

, 2016
The near-wake of a vertical-axis cross-flow turbine was modeled numerically via blade-resolved k–ω shear stress transport (SST) and Spalart–Allmaras Reynolds-averaged Navier–Stokes (RANS) models in two and three dimensions. The results for each case were
P. Bachant, M. Wosnik
semanticscholar   +1 more source

Modeling the plasma near-wakes [PDF]

AIAA Journal, 1980
An ambient unmagnetized plasma is considered in which a flat-based projectile of radius R and zero surface potential moves along its axis of symmetry at a constant mesothermal speed. The plasma cavity-filling process is likened to the transient flow associated with a radially imploding cylindrical shock seen immediately after the rupture of a ...
Liu, Vi-Cheng., Ying, S. J.
openaire   +2 more sources

Wind turbine wake dynamics subjected to atmospheric gravity waves: a measurement-driven large-eddy simulation study [PDF]

Wind Energy Science
Atmospheric gravity waves (AGWs) are large-scale wave-like flow structures commonly generated when atmospheric flows are vertically perturbed by topographical features or meteorological phenomena.
D. Feng, D. Feng, N. Dangi, S. Watson
doaj   +1 more source

Evaluation of the wind direction uncertainty and its impact on wake modeling at the Horns Rev offshore wind farm

, 2014
Accurately quantifying wind turbine wakes is a key aspect of wind farm economics in large wind farms. This paper introduces a new simulation post-processing method to address the wind direction uncertainty present in the measurements of the Horns Rev ...
Pierre-Elouan Réthoré, Mathieu Gaumond, A. Bechmann, K. Hansen, A. Peña, S. Ott, G. Larsen   +6 more
semanticscholar   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

Molecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

Network Localization of Fatigue in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Fatigue is among the most common symptoms and one of the main factors determining the quality of life in multiple sclerosis (MS). However, the neurobiological mechanisms underlying fatigue are not fully understood. Here we studied lesion locations and their connections in individuals with MS, aiming to identify brain networks ...
Olli Likitalo, Jaakko Kungshamn, Albert Bellmunt‐Gil, Silvia Tommasin, Abhineet Ojha, Matias Viitala, Juho Aaltonen, Jyrki Lötjönen, Juha Koikkalainen, Pauli Ylikotila, Patrizia Pantano, Merja Soilu‐Hänninen, Juho Joutsa   +12 more
wiley   +1 more source

Wake Modeling with the Actuator Disc Concept

, 2012
The wakes induced by the wind turbines are modeled with the finite-volume code WindSim, based on the solving of the Reynolds Averaged Navier-Stokes (RANS) equations of an Atmospheric Boundary Layer. The RANS equations of an uncompressible flow are solved
G. Crasto, A. Gravdahl, F. Castellani, E. Piccioni   +3 more
semanticscholar   +1 more source

Association of Corticospinal Tract Asymmetry With Ambulatory Ability After Intracerebral Hemorrhage

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Ambulatory ability after intracerebral hemorrhage (ICH) is important to patients. We tested whether asymmetry between ipsi‐ and contra‐lesional corticospinal tracts (CSTs) assessed by diffusion tensor imaging (DTI) is associated with post‐ICH ambulation.
Yasmin N. Aziz, Carl D. Langefeld, Mary E. Comeau, Miranda C. Marion, Tyler P. Behymer, Lee A. Gilkerson, Padmini Sekar, Weihong Yuan, Vivek Khandwala, Brady J. Williamson, Thomas Maloney, Achala Vagal, Pierce Boyne, Kari Dunning, Matthew L. Flaherty, Steven J. Kittner, Prachi Mehndiratta, Gunjan Y. Parikh, Michael L. James, David Roh, Fernando D. Testai, Farhaan S. Vahidy, James Thornton, Ranjit Bagga, Daniel Woo, Stacie L. Demel   +25 more
wiley   +1 more source