Results 61 to 70 of about 1,146 (113)

Scaling Transition of Active Turbulence from Two to Three Dimensions

Advanced Science
Turbulent flows are observed in low‐Reynolds active fluids, which display similar phenomenology to the classical inertial turbulence but are of a different nature.
Da Wei, Yaochen Yang, Xuefeng Wei, Ramin Golestanian, Ming Li, Fanlong Meng, Yi Peng   +6 more
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Pseudospectrum in Rectangular Mini/Micro Channel Fluidics Linear Transition to Turbulence

IEEE Access
Recent years have seen a significant increase in interest in rectangular mini/micro channels, such as those found in high-power research reactors with plate-type fuels, high-performance microelectronic cooling systems, photovoltaic panel cooling systems,
Bahri Uzunoglu
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Aging and memory of transitional turbulence

Nature Communications
Abstract The recent classification of the onset of turbulence as a directed percolation (DP) phase transition has been applied to all major shear flows including pipe, channel, Couette and boundary layer flows. A cornerstone of the DP analogy is the memoryless (Poisson) property of turbulent sites.
Vasudevan Mukund, Chaitanya S. Paranjape, Michael Philip Sitte, Gökhan Yalnız, Björn Hof   +4 more
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Turbulent transition [PDF]

Nature Photonics, 2013
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Transition to turbulence [PDF]

Nature Physics, 2016
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Editorial: Recent advances in hydrodynamic instability and transition to turbulence

Theoretical and Applied Mechanics Letters, 2015
Luca Brandt
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Turbulence Transition in Pipe Flow

Annual Review of Fluid Mechanics, 2007
Pipe flow is a prominent example among the shear flows that undergo transition to turbulence without mediation by a linear instability of the laminar profile. Experiments on pipe flow, as well as plane Couette and plane Poiseuille flow, show that triggering turbulence depends sensitively on initial conditions, that between the laminar and the ...
Eckhardt, Bruno, Schneider, Tobias M, Hof, B, Westerweel, J   +3 more
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Transition Toward Developed Turbulence

Physical Review Letters, 1994
Using an axisymmetric jet with helium at low temperatures we have studied the velocity intermittency on a large range of Taylor scale based Reynolds number Rλ. The results show for the first time evidence for a transition between two types of turbulence in a jet. Above the transition (Rλ>180) a clear separation occurs between small and large scales: in
Chabaud, B., Naert, Antoine, Peinke, J., Chillà, F., Castaing, B., Hébral, B.   +5 more
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Laminar-Turbulent Transition and Turbulence

2014
The state of the boundary layer, laminar or turbulent, influences the drag, the performance of the wing, of stabilization and control devices etc., and the flight characteristics of an airplane. A given flight vehicle is considered as “transition insensitive”, if the location of laminar-turbulent transition does not affect these items.
Ernst Heinrich Hirschel, Jean Cousteix, Wilhelm Kordulla   +2 more
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The transition to turbulence

Physics Today, 1978
Fluid flows have been studied systematically for more than a century and their equations of motion are well known, yet the transition from laminar flow to turbulent flow remains an enigma. The difficulty lies in the intractability of the nonlinear hydrodynamic equations that express the conservation of mass, momentum and energy for a fluid continuum ...
Swinney, Harry L., Gollub, Jerry P.
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