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ISSN Druckformat: 1064-2285
ISSN Online: 2162-6561
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Pitchfork Bifurcation of the Mixed Convection in a Vertical Channel
ABSTRAKT
The steady laminar mixed convection in a two-dimensional vertical channel with locally and symmetrically heated walls is studied numerically. The fluid flows downward through the channel. The walls are thermally insulated in the upstream part, maintained at a constant temperature in the heated middle part, and thermally insulated in the downstream part. The present contribution deals, in particular, with the bifurcation from a symmetric to an asymmetric solution in such opposed flow conditions. In fact, the symmetry breaking occurs at a value of the Richardson number of about 4.5.
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Martínez-Suástegui Lorenzo, Treviño César, Cajas Juan Carlos, Steady and oscillatory laminar opposing mixed convection in a vertical channel of finite length subjected to symmetrical isothermal discrete heat sources, Physics of Fluids, 27, 6, 2015. Crossref
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PADET JACQUES, COTTA RENATO M., MLADIN EMILIA C., PADET COLETTE, Mixed thermal convection: fundamental issues and analysis of the planar case, Anais da Academia Brasileira de Ciências, 87, 3, 2015. Crossref