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NUMERICAL STUDY OF RAYLEIGH-BE´NARD CONVECTION IN A CYLINDER

التفاصيل البيبلوغرافية
العنوان: NUMERICAL STUDY OF RAYLEIGH-BE´NARD CONVECTION IN A CYLINDER
المؤلفون: S. S. Leong
المصدر: Numerical Heat Transfer, Part A: Applications. 41:673-683
بيانات النشر: Informa UK Limited, 2002.
سنة النشر: 2002
مصطلحات موضوعية: Convection, Numerical Analysis, Mathematical analysis, Prandtl number, Geometry, Vorticity, Condensed Matter Physics, Nusselt number, Physics::Fluid Dynamics, symbols.namesake, Alternating direction implicit method, Flow (mathematics), symbols, Cylinder, Rayleigh–Bénard convection, Mathematics
الوصف: Numerical solutions of the three-dimensional equations for Rayleigh-Benard convection in a vertical cylinder are presented. The energy and vorticity transport equations are solved using the Samarskii-Andreyev alternating direction implicit (ADI) scheme. A fast Fourier transform algorithm is used to solve for the vector potential. Solutions are presented for aspect ratios of 2 and 4, a Prandtl number Pr = 7, and Rayleigh numbers 12 h Ra h 37500. A conductive (no motion) state exists when Ra h Ra c = 1860. For Ra > Ra c , there are four main types of flow structures. These are concentric, radial, parallel, and cross rolls. The Nusselt number depends on the type of flow structure.
تدمد: 1521-0634
1040-7782
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::c6a4d13bdb214f8d0760c1ad1278035a
https://doi.org/10.1080/104077802317418287
رقم الأكسشن: edsair.doi...........c6a4d13bdb214f8d0760c1ad1278035a
قاعدة البيانات: OpenAIRE
الوصف
تدمد:15210634
10407782