On Moderate-Rayleigh-Number Convection in an Inclined Porous Layer
نویسندگان
چکیده
منابع مشابه
High-Rayleigh-number convection in a fluid-saturated porous layer
By JESSE OTERO, LUBOMIRA A. DONTCHEVA, HANS JOHNSTON, RODNEY A. WORTHING, ALEXANDER KURGANOV, GUERGANA PETROVA AND CHARLES R. DOERING 3,7 Department of Mathematics, Ohio State University, Columbus, OH 43210, USA Department of Computer Science & Engineering, University of Washington, Seattle, WA 98195-2350, USA Department of Mathematics, University of Michigan, Ann Arbor, MI 48109-1109, USA Brea...
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High-resolution numerical simulations of statistically steady convection in a threedimensional porous medium are presented for Rayleigh numbers Ra 6 2 × 104. Measurements of the Nusselt number Nu in the range 1750 6 Ra 6 2× 104 are well fitted by a relationship of the form Nu= α3Ra+ β3, for α3= 9.6× 10−3 and β3= 4.6. This fit indicates that the classical linear scaling Nu∼ Ra is attained, and t...
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We report experiments on thermally driven convection in an inclined layer of large aspect ratio in a fluid of Prandtl number sigma approximately 1. We observed a number of new nonlinear, mostly spatiotemporally chaotic, states. At small angles of inclination we found longitudinal rolls, subharmonic oscillations, Busse oscillations, undulation chaos, and crawling rolls. At larger angles, in the ...
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Priya Subramanian1,2,†, Oliver Brausch3, Karen E. Daniels4, Eberhard Bodenschatz1, Tobias M. Schneider1,5 and Werner Pesch3 1Max-Planck Institute for Dynamics and Self-Organization, Göttingen 37077, Germany 2School of Mathematics, University of Leeds, Leeds LS2 9JT, UK 3Universität Bayreuth, Theoretische Physik I, Bayreuth 95447, Germany 4Department of Physics, North Carolina State University, ...
متن کاملDefect turbulence in inclined layer convection.
We report experimental results on the defect turbulent state of undulation chaos in inclined layer convection of a fluid with Prandtl number approximately 1. By measuring defect density and undulation wave number, we find that the onset of undulation chaos coincides with the theoretically predicted onset for stable, stationary undulations. At stronger driving, we observe a competition between o...
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ژورنال
عنوان ژورنال: Fluids
سال: 2019
ISSN: 2311-5521
DOI: 10.3390/fluids4020101