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of 10
pro vyhledávání: '"550"'
Publikováno v:
Journal of Fluid Mechanics. 852:678-709
Drag control using a newly developed spanwise opposed wall-jet forcing (SOJF) method is studied via direct numerical simulation of the incompressible Navier–Stokes equations in a turbulent channel flow (at the friction Reynolds numbers $Re_{\unicod
Publikováno v:
Journal of Fluid Mechanics. 927
We employ a resolvent-based methodology to estimate velocity and pressure fluctuations within turbulent channel flows at friction Reynolds numbers of approximately 180, 550 and 1000 using measurements of shear stress and pressure at the walls, taken
Publikováno v:
Journal of Fluid Mechanics. 815:333-360
Several recent studies have demonstrated how large-scale vortices may arise spontaneously in rotating planar convection. Here we examine the dynamo properties of such flows in rotating Boussinesq convection. For moderate values of the magnetic Reynol
Publikováno v:
Journal of Fluid Mechanics. 213:377
Natural convection in a cube of fluid-saturated porous medium having a constant temperature top and bottom is studied numerically. In the first of two special cases considered, the vertical sides are insulated. In this case, the numerical simulations
Autor:
Andrea Cimarelli, Carlo Massimo Casciola, Philipp Schlatter, E. De Angelis, Alessandro Talamelli, Geert Brethouwer
Publikováno v:
Journal of Fluid Mechanics. 771:407-423
Direct numerical simulations of turbulent channel flows at friction Reynolds numbers (Re) of 550, 1000 and 1500 are used to analyse the turbulent production, transfer and dissipation mechanisms in the compound space of scales and wall distances by me
Autor:
Peter Bartello, Steven M. Tobias
Publikováno v:
Journal of Fluid Mechanics. 725:1-22
In this article we present direct numerical simulations of stratified flow at resolutions of up to $204{8}^{2} \times 513$, to explore scalings for the dynamics of stably stratified turbulence. Recent work suggests that for strong enough stratificati
Autor:
Xuesong Wu
Publikováno v:
Journal of Fluid Mechanics. 689:279-316
In two previous papers (Wu, J. Fluid Mech., vol. 453, 2002, p. 289, and Wu & Hogg, J. Fluid Mech., vol. 550, 2006, p. 307), a formal asymptotic procedure was developed to calculate the sound radiated by unsteady boundary-layer flows that are describe
Publikováno v:
Journal of Fluid Mechanics. 274:1-21
It is shown experimentally that free shear flows can be substantially altered through direct control of the large coherent vortices present in the flow.First, flow-visualization experiments are conducted in Kalliroscope fluid at Reynolds number 550.
An investigation of transition to turbulence in bounded oscillatory Stokes flows Part 1. Experiments
Publikováno v:
Journal of Fluid Mechanics. 225:395-422
Experimental results on flow-field statistics are presented for turbulent oscillatory flow in a circular pipe for the range of Reynolds numbers Reδ = U0δ/ν (U0 = amplitude of cross-sectional mean velocity, δ = (2ν/ω)½) = Stokes layer thickness
Publikováno v:
Journal of Fluid Mechanics
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2006, 566 (november), pp.11-45. ⟨10.1017/s0022112006001303⟩
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2006, 566 (november), pp.11-45. ⟨10.1017/s0022112006001303⟩
International audience; The objective of the study is first to examine the optimal transient growth of Görtler-Hämmerlin perturbations in swept Hiemenz flow. This configuration constitutes a model of the flow in the attachment-line boundary layer a