Results 31 to 40 of about 29,832 (302)
Nature of laminar-turbulence intermittency in shear flows. [PDF]
Physical review. E, Statistical, nonlinear, and soft matter physics, 2013 In pipe, channel, and boundary layer flows turbulence first occurs intermittently in space and time: at moderate Reynolds numbers domains of disordered turbulent motion are separated by quiescent laminar regions.
Marc Avila, B. Hof
semanticscholar +1 more source
Supertransient Magnetohydrodynamic Turbulence in Keplerian Shear Flows [PDF]
Physical Review Letters, 2010 4 pages, 5 figures, accepted for publication in Physical Review ...
Rempel, Erico L. +2 more
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Heat Transfer in Turbulent Shear Flow [PDF]
Journal of the Aeronautical Sciences, 1956 A new and relatively simple description is proposed for the velocity profile in turbulent flow close to a smooth wall. Heat transfer coefficients are calculated from the description and are shown to agree better with experiment than other theories. The analysis is extended to transport processes in liquids where the viscosity has a large variation ...
openaire +2 more sources
Polymer stress tensor in turbulent shear flows [PDF]
Physical Review E, 2005 The interaction of polymers with turbulent shear flows is examined. We focus on the structure of the elastic stress tensor, which is proportional to the polymer conformation tensor. We examine this object in turbulent flows of increasing complexity.
L'vov, Victor S. +3 more
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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
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Clustering and turbulence modulation in particle laden shear flows
Journal of Fluid Mechanics, 2011 Turbulent fluctuations induce the commonplace phenomenology on the transport of small inertial particles known as clustering. Particles spread disuniformly and form aggregates where their local concentration is much higher than it is in nearby ...
P. Gualtieri +3 more
semanticscholar +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
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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
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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
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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
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