Results 251 to 260 of about 9,758,243 (289)

Scalings and structures in turbulent Couette-Taylor flow

Physical Review E, 2001
The scaling of velocity structure functions in Couette-Taylor flow [Lewis and Swinney, Phys. Rev. E 59, 5457 (1999)] is revisited to obtain more accurate values of the scaling exponents for the Reynolds number range investigated, 12,000 to 540,000 (Taylor Reynolds numbers ...
Z S, She, K, Ren, G S, Lewis, H L, Swinney   +3 more
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Tracking space-filling structures in turbulent flows

2015 IEEE 5th Symposium on Large Data Analysis and Visualization (LDAV), 2015
We present a novel approach for tracking space-filling features, i.e. a set of features which covers the entire domain. In contrast to previous work, we determine the assignment between features from successive time steps by computing a globally optimal, maximum-weight, maximal matching on a weighted, bi-partite graph.
Andrea Schnorr, Jens Henrik Göbbert, Torsten W. Kuhlen, Bernd Hentschel 0001   +3 more
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On the fine structure of turbulent flows

Journal of Fluid Mechanics, 1957
The turbulence produced by a multiplicity of small air jets has been investigated and comparisons are made with other turbulent flows. The eddy Reynolds number is large (Rλ = 250). The energy spectrum was measured, as well as the skewness and kurtosis of ∂u/∂x.
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Coherent structures of turbulence in wall-bounded turbulent flows

2011
Dottorato di Ricerca in Ingegneria Idraulica per l Ambiente e il Territorio, Ciclo XXII,a.a ...
Ciliberti, Stefania Angela, Macchione, Francesco, Alfonsi, Giancarlo   +2 more
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Propagating structures in wall-bounded turbulent flows

Theoretical and Computational Fluid Dynamics, 1991
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sirovich, L., Ball, K. S., Handler, R. A.   +2 more
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On the Turbulence Structure in Compressible Turbulent Isothermal Channel Flow

2004
Direct numerical simulations of isothermal channel flow, with Mach numbers ranging from M = 0.3 to M = 3 and Reynolds numbers ranging from Re τ = 180 to Re τ = 560 have been performed. Their statistical analysis shows that changes in the turbulent stress peak values are linked to the changes in the corresponding pressure strain components.
S. Sarkar, H. Foysi, R. Friedrich
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Vortex structures in turbulent flow

2000
Abstract It is an honour to be invited to lecture in this magnificent hall of the University of Edinburgh, where I was privileged to study mathematics and physics in the great era of Aitken, Edge, Schlapp, Kemmer and Nisbet. I matriculated here in 1953.
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Entrainment and the structure of turbulent flow

Journal of Fluid Mechanics, 1970
Although the entrainment of non-turbulent fluid into a turbulent flow occurs across sharply defined boundaries, its rate is not determined solely by the turbulent motion adjacent to the interface but depends on overall properties of the flow, in particular, on those that control the energy balance.
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The Analytic Structure of Turbulent Flows

1984
The topics discussed include (i) the relation between the Painleve property and integrability, (ii) high-frequency intermittency and complex-time singularities, (iii) possible real singularities of the 3-D Euler equations and how they can traced by going into the complex domain, (iv) short time behaviour of non-linear PDE’s with entire initial data.
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Coherent structures in turbulent flow

2007
It is customary to say that the problem of turbulence remains the outstanding challenge of fluid dynamics, but in fact the concerted efforts of many scientists and engineers over the years have led to a considerable body of useful knowledge. The three processes of cataloguing, curve fitting and 'postdicting' are well under control.
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