ORBi: Perdang Jean - 2D cellular automata for turbulent convection

Reference : 2D cellular automata for turbulent convection


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Physics
	To cite this reference:	http://hdl.handle.net/2268/109717

Title :	2D cellular automata for turbulent convection
Language :	English
Author, co-author :	Perdang, Jean [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)]
	Raty, Jean-Yves [Université de Liège - ULg > Département de physique > Physique de la matière condensée]
	Tomassini, M. [> > > >]
	Lejeune, André [ > > ]
Publication date :	1994
Main document title :	Proceedings of the 6th Joint EPS-APS International Conference on Physics Computing. PC'94. Physics Computing '94
Editor :	Gruber, R.
	Tomassini, M.
Publisher :	Eur. Phys. Soc
Pages :	527-530530
Peer reviewed :	No
On invitation :	No
Audience :	International
ISBN :	2 88270 011 3
City :	Geneva
Country :	Switzerland
Event name :	6th Joint EPS-APS International Conference on Physics Computing. PC'94. Physics Computing '94
Event date :	22-26 Aug. 1994
Event organizer :	EPS-APS
Event place (city) :	Lugano
Event country :	Switzerland
Keywords :	[en] Theoretical or Mathematical/ cellular automata ; natural convection ; physics computing ; turbulence/ turbulent convection ; cellular automaton formulation ; Rayleigh-Benard convection ; standard plane-parallel shallow configuration ; hydrodynamical formulation ; Rayleigh number ; stationary roll-pattern ; hydrodynamic theory ; nonstationary turbulent flow pattern ; geometry-constrained stationary patterns ; turbulent motions/ A4725Q Convection and heat transfer A0550 Lattice theory and statistics ; Ising problems A0560 Transport processes: theory C7320 Physics and chemistry computing C4220 Automata theory
Abstract :	[en] A cellular automaton (CA) formulation is devised to simulate 2-dimensional Rayleigh-Benard convection. The model is tested in the case of a standard plane-parallel shallow configuration for which analytical solutions of the hydrodynamical formulation are available at low enough Rayleigh numbers. If we use a measure of the intensity of gravity, k, as our free parameter (the analogue of the Rayleigh number), all other model parameters being fixed, then we can reproduce the well-known stationary roll-pattern predicted by the hydrodynamic theory at low k values. At higher k values the model exhibits a nonstationary turbulent flow pattern. Our formulation is extended to less trivial geometries for which an analytic treatment in the usual hydrodynamic context is not feasible. Besides geometry-constrained stationary patterns of motion in a range of low k values, this model exhibits again turbulent motions at higher k values
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/109717

There is no file associated with this reference.

All documents in ORBi are protected by a user license.

Dspace v1.5