Many routes to turbulent convection
WebUsing automated laser-Doppler methods we have identified four distinct sequences of instabilities leading to turbulent convection at low Prandtl number (2·5–5·0), in fluid layers of small horizontal extent. Contour maps of the structure of the time-averaged velocity field, in conjunction with high-resolution power spectral analysis, demonstrate that several … Web01. nov 2024. · These bifurcations have been found in various convection including Rayleigh-Bénard convection and thermocapillary convection. Gollub and Benson have …
Many routes to turbulent convection
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Web01. jan 2007. · Many routes to turbulent convection. Article. Full-text available. Oct 1980; J FLUID MECH; J. P. Gollub; Stephen Benson; Using automated laser-Doppler methods … Web25. okt 2024. · where Pr = ν / κ is the Prandtl number and C is a dimensionless prefactor. Eq. 1 is referred to as the “geostrophic turbulence” scaling law of rapidly rotating …
Web01. jan 2005. · R. H. Kraichnan: Turbulent thermal convection of arbitrary Prandtl number. Phys. Fluids 5, 1374–1389 (1962) Google Scholar L. N. Howard: Heat transport by … WebMany routes to turbulent convection - Volume 100 Issue 3. To save this article to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your …
Web01. jan 1981. · This chapter discusses the transition to turbulence in thermal convection with and without rotation. Thermal convection in a layer heated from below and Taylor vortices between differentially rotating coaxial cylinders are the classical examples of fluid systems that exhibit a slow onset of turbulence. ... Many routes to turbulent … Web21. apr 2006. · With increasing Rayleigh number R convection evolves from steady S to chaotic NP through the sequence of bifurcations S→P (1) →QP 2 →P (2) →NP, where P …
Web30. apr 2024. · Interaction of surface radiation and turbulent natural convection of differentially heated enclosures with different positions of heat source and sink has been assessed systematically. The mass, momentum and energy equations have been solved in two-dimensional cartesian coordinates. ... Gollub J P and Benson S V 1980 Many …
WebA number of routes to nonperiodic motion were identified by varying the geometrical aspect ratio, Prandtl number, and mean flow. Automated laser-Doppler methods have been … resin used for downhole toolsWebTurbulence models are usually classified by the number of additional PDE’s that are used to model the turbulent viscosity. The turbulent viscosity is a parameter of the flow and not the fluid. As mentioned before, one of the most important properties of a turbulent flow is its ability to efficiently mix momentum and scalars, like temperature. resin used to make varnish crossword clueWebRoutes to chaos and turbulence. A computational introduction BY JOHN ARGYRIS, GUNTER FAUST AND MARIA HAASE ... characterizes the geometry of the convection … proteins nutrition factsWebThe Route of Transition to Turbulence: Solution of Global Nonlinear Navier–Stokes Equation. References. 11 - Mixed Convection Flow. Published online by Cambridge … resin urn plantersWeb11. mar 2024. · Turbulent convection in horizontally extended systems comprises vortices and plumes on many time and length scales. These structures interact nonlinearly to self-organize into slowly evolving turbulent superstructures, which are horizontally more extended than in height. We use a U-shaped deep-learning algorithm to generate a time … resin urethaneresin urn moldWeb09. maj 2016. · Moreover, the bifurcation route of the thermocapillary convection changes very sensitively by the aspect ratio of the liquid layer. With the increasing Reynolds number (applied temperature difference), ... “ Many routes to turbulent convection,” J. Fluid Mech. 100, 449 (1980). resin utf-8