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A solution to a benchmark problem for a three-dimensional mixed convection flow in a horizontal rectangular channel heated from below and cooled from above (Poiseuille-Rayleigh-Bénard flow) is proposed. This flow is a steady thermoconvec-tive longitudinal roll flow in a large aspect ratio channel at moderate Reynolds and Rayleigh numbers (Re=50, Ra=5000)(More)
A solution to a benchmark problem for a three-dimensional mixed convection flow in a horizontal rectangular channel heated from below and cooled from above (Poiseuille-Rayleigh-Bénard flow) is proposed. This flow is a steady thermoconvec-tive longitudinal roll flow in a large aspect ratio channel at moderate Reynolds and Rayleigh numbers (Re=50, Ra=5000)(More)
______________________________ Simulation numérique et stabilité des écoulements de convection mixte en conduite rectangulaire chauffée par le bas ______________________________ Soutenue le 9 juillet 1997, devant le jury composé de: Mots-clés Poiseuille-Bénard Lagrangien augmenté Stabilité linéaire Convection mixte Conditions aux limites ouvertes(More)
A 58 year-old man who lived in Africa for 17 years, presented, four years after returning to western France, acute confusion and weight loss. He had no fever and no immunosuppression. Clinical examination revealed Babinski sign, mucosal ulcerations of the mouth and hepatomegaly. The lumbar puncture revealed a meningitis and MRI showed a few parenchymal(More)
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