Results 21 to 30 of about 10,643 (314)
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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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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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 ...
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A visual study of turbulent shear flow
Journal of Fluid Mechanics, 1973 The outer region of a turbulent boundary layer along a flat plate was photographed and analysed; in addition, limited observations of the wall area were also made. The technique involved suspending very small solid particles in water and photographing their motion with a high-speed camera moving with the flow.The single most important event observed in
S. G. Nychas +2 more
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Angewandte Chemie, EarlyView.Fluorescence image of the coronal slice of mouse brain where multiple neurochemicals have been measured in vivo with a nanodialysis platform coupled to CE‐MS to reveal strong millimeter‐scale spatial chemical gradients. Formation and maintenance of such local chemical compartments in the otherwise diffusion‐homogeneous cortex indicates strong ...
Weihua Shi +5 more
wiley +2 more sources
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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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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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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Structure of unsteady stably stratified turbulence with mean shear.
, 2004 The statistics of unsteady turbulence with uniform stratification N (Brunt–Väisälä frequency) and shear α(=dU1/dx3) are analysed over the entire time range (00 and \it Ri>0.25 respectively, oscillatory momentum and positive and negative density fluxes ...
Hanazaki, H +7 more
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A Robust Control Approach to Understanding Nonlinear Mechanisms in Shear Flow Turbulence [PDF]
, 2010 A robust control framework is used to investigate a streamwise constant projection of the Navier Stokes equations for plane Couette flow. Study of this streamwise constant model is motivated by both numerical and experimental observations that suggest ...
Gayme, Dennice F. Maynard
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