Results 11 to 20 of about 11,700 (212)

Transient growth in Taylor-Couette flow [PDF]

Physics of Fluids, 2002
Transient growth due to non-normality is investigated for the Taylor-Couette problem with counter-rotating cylinders as a function of aspect ratio eta and Reynolds number Re. For all Re < 500, transient growth is enhanced by curvature, i.e.
Faisst H., Hristina Hristova, Joseph D. D., Laurette S. Tuckerman, Marcus P. S., Meseguer A., Peter J. Schmid, Prigent A., Sébastien Roch, Tagg R., Tagg R., Tillmark N., Wright T. G.   +12 more
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Hydromagnetic Taylor--Couette flow: wavy modes [PDF]

Journal of Fluid Mechanics, 2002
We investigate magnetic Taylor--Couette flow in the presence of an imposed axial magnetic field. First we calculate nonlinear steady axisymmetric solutions and determine how their strength depends on the applied magnetic field.
Barenghi, Carlo F., Willis, Ashley P.
core   +5 more sources

Transient Turbulence in Taylor-Couette Flow [PDF]

Physical Review E, 2009
Recent studies have brought into question the view that at sufficiently high Reynolds number turbulence is an asymptotic state. We present the first direct observation of the decay of turbulent states in Taylor-Couette flow with lifetimes spanning five ...
Borrero-Echeverry, Daniel, Schatz, Michael F., Tagg, Randall   +2 more
core   +3 more sources

Optimal Taylor-Couette flow: Radius ratio dependence [PDF]

Journal of Fluid Mechanics, 2013
Taylor-Couette flow with independently rotating inner (i) and outer (o) cylinders is explored numerically and experimentally to determine the effects of the radius ratio {\eta} on the system response. Numerical simulations reach Reynolds numbers of up to
Grossmann, Siegfried, Huisman, Sander G., Jannink, Tim J. G., Lohse, Detlef, Monico, Rodolfo Ostilla, Sun, Chao, van Gils, Dennis P. M., Verzicco, Roberto   +7 more
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Optimal Taylor-Couette flow: direct numerical simulations [PDF]

Journal of Fluid Mechanics, 2012
We numerically simulate turbulent Taylor-Couette flow for independently rotating inner and outer cylinders, focusing on the analogy with turbulent Rayleigh-B\'enard flow.
Chandrasekhar, Detlef Lohse, Drazin, Richard J. A. M. Stevens, Roberto Verzicco, Rodolfo Ostilla, Siegfried Grossmann, Strogatz   +7 more
core   +7 more sources

Destabilizing Taylor-Couette flow with suction [PDF]

Physics of Fluids, 2010
We consider the effect of radial fluid injection and suction on Taylor-Couette flow. Injection at the outer cylinder and suction at the inner cylinder generally results in a linearly unstable steady spiralling flow, even for cylindrical shears that are ...
Basile Gallet, Batchelor G. K., Chandrasekhar S., Charles R. Doering, Edward A. Spiegel, Malkus W. V. R., Spiegel E. A.   +6 more
core   +2 more sources

Direct Numerical Simulation of turbulent Taylor-Couette flow [PDF]

European Journal of Mechanics - B/Fluids, 2007
The direct numerical simulation (DNS) of the Taylor--Couette flow in the fully turbulent regime is described. The numerical method extends the work by Quadrio & Luchini (Eur. J. Mech.
Andereck, Batchelor, Bech, Bilgen, Coles, Davide Pirrò, De Graaf, Del Álamo, Dubrulle, Eckhardt, Fasel, Haim, Hamilton, Kim, Komminaho, Koschmieder, Lathrop, Lele, Lewis, Luchini, Maurizio Quadrio, Moser, Moser, Orszag, Panton, Patel, Quadrio, Schultz, Smith, Snyder, Tagg, Taylor, Thomas, Townsend, Townsend   +34 more
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Continuous Synthesis of 2-Methoxyhydroquinone from Vanillin in a Taylor-Couette Disc Contactor. [PDF]

ChemSusChem
This study investigates continuous synthesis of 2‐methoxyhydroquinone (MHQ) from vanillin in a Taylor‐Couette disc contactor (TCDC). The TCDC, a stirred column reactor utilizing Taylor vortices for intense mixing, achieved efficient phase separation and hydraulic stability.
Grafschafter A, Rudelstorfer G, Wickenhauser D, Leypold C, Schlemmer W, Spirk S, Lux S.   +6 more
europepmc   +2 more sources

Stably stratified Taylor–Couette flows

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2023
Stably stratified Taylor–Couette flow has attracted much attention due to its relevance as a canonical example of the interplay among rotation, stable stratification, shear and container boundaries, as well as its potential applications in geophysics and astrophysics.
Jose M. Lopez, Juan M. Lopez, Francisco Marques   +2 more
openaire   +5 more sources

Stratified Taylor–Couette flow: nonlinear dynamics [PDF]

Journal of Fluid Mechanics, 2021
A series of experiments on stratified Taylor–Couette flow in short aspect ratio wide-gap annuli found an intriguing and not-well-understood dynamics: nonlinear coherent structures appearing and disappearing periodically, along with density layering reminiscent of staircase profiles. A detailed numerical study is presented of the nonlinear dynamics near
Juan M. Lopez, Francisco Marques
openaire   +4 more sources