Numerical investigation of roll convection stability
| Autor: | V V Kolmychkov, Yu. P. Popov, Olga Semenovna Mazhorova, O. V. Shcheritsa |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Fluid Flow and Transfer Processes
Physics Convection Basis (linear algebra) Mechanical Engineering Prandtl number General Physics and Astronomy Thermodynamics Rayleigh number Mechanics Stability (probability) Physics::Fluid Dynamics symbols.namesake Flow (mathematics) symbols Wavenumber Rayleigh–Bénard convection |
| Zdroj: | Fluid Dynamics. 44:490-501 |
| ISSN: | 1573-8507 0015-4628 |
| DOI: | 10.1134/s0015462809040024 |
| Popis: | This study is devoted to the mathematical modeling of Rayleigh-Benard convection in a rectangular cavity with rigid boundaries. The stability of the roll motion induced by an initial disturbance of special form is studied on the basis of two-dimensional and three-dimensional calculations. Different patterns of flow restructuring with respect to the wavenumber are analyzed on the Rayleigh number range Ra = 1708–7000 for the Prandtl numbers Pr = 1 and 0.71. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|