Results 31 to 40 of about 117,422 (348)
Turbulent-laminar patterns in shear flows without walls [PDF]
, 2016 Turbulent-laminar intermittency, typically in the form of bands and spots, is a ubiquitous feature of the route to turbulence in wall-bounded shear flows.
Barkley, Dwight +2 more
core +6 more sources
Analytical theory of forced rotating sheared turbulence: The perpendicular case [PDF]
, 2008 Rotation and shear flows are ubiquitous features of many astrophysical and geophysical bodies. To understand their origin and effect on turbulent transport in these systems, we consider a forced turbulence and investigate the combined effect of rotation ...
A. A. Townsend +14 more
core +5 more sources
Effects of System Rotation on Turbulence Structure: A Review Relevant to Turbomachinery Flows
International Journal of Rotating Machinery, 1998 Turbomachine rotor flows may be affected by system rotation in various ways. Coriolis and centrifugal forces are responsible for (i) modification of the structure of turbulence in boundary layers and free shear layers, (ii) the generation of secondary ...
James P. Johnston
doaj +1 more source
Subcritical Turbulent Transition in Rotating and Curved Shear Flows [PDF]
, 2005 16 pages, 2 figures, refereed proceeding of the Bristol 2004 Conference on Laminar Turbulent Transition and Finite Amplitude ...
Longaretti, P-Y., Dauchot, O.
openaire +2 more sources
International Journal of Renewable Energy Development, 2018 Flows through a vertical axis wind turbine (VAWT) are very complex due to their inherent unsteadiness caused by large variations of the angle of attacks as the turbine is rotating and changing its azimuth angles simultaneously.
Jaruwan Chaiyanupong, Tawit Chitsomboon
doaj +1 more source
International Journal of Sediment ResearchSediment transport in open channels plays a significant role in shaping turbulent flow structures, influencing sediment dynamics and flow resistance. Transport regimes are classified into equilibrium, where sediment inflow and outflow are balanced, and ...
Bambang Agus Kironoto +3 more
doaj +1 more source
Drag Reduction in Turbulent Flows by Polymer and Fiber Additives
KONA Powder and Particle Journal, 2020 This article provides a review of the recent progress in understanding and predicting additives-induced drag reduction (DR) in turbulent wall-bounded shear flows.
Cristian Marchioli, Marina Campolo
doaj +1 more source
A reinforcement‐learning approach for individual pitch control
Wind Energy, 2022 Individual pitch control has shown great capability of alleviating the oscillating loads experienced by wind turbine blades due to wind shear, atmospheric turbulence, yaw misalignment, or wake impingement.
Marion Coquelet +3 more
doaj +1 more source
Scientific Reports, 2017 The flow instabilities of solutions of high molecular weight DNA in the entangled semi-dilute concentration regime were investigated using optical coherence tomography velocimetry, a technique that provides high spatial (probe volumes of 3.4 pL) and ...
A. V. Malm, T. A. Waigh
doaj +1 more source
Shear Number as a Practical Tool for Flow Regime Evaluation and Education
FluidsTurbulence is a complex and challenging concept, often simplified for students through the use of the Reynolds Number (Re), used to indicate when flow transitions from laminar to turbulent occurs.
Kazys Almenas +3 more
doaj +1 more source