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Stability analysis of some fully developed mixed convection flows in a vertical channel
Author(s) -
Miklavčič M.
Publication year - 2015
Publication title -
zamm ‐ journal of applied mathematics and mechanics / zeitschrift für angewandte mathematik und mechanik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.449
H-Index - 51
eISSN - 1521-4001
pISSN - 0044-2267
DOI - 10.1002/zamm.201400248
Subject(s) - combined forced and natural convection , mechanics , natural convection , isothermal process , convection , convection cell , flow (mathematics) , temperature gradient , plane (geometry) , pressure gradient , instability , vertical plane , materials science , thermodynamics , physics , meteorology , geometry , mathematics , engineering , structural engineering
Stability of fully developed mixed convection flows, with significant viscous dissipation, in a vertical channel bounded by isothermal plane walls having the same temperature and subject to pressure gradient is investigated. It is shown that one of the dual solutions is always unstable and that both are unstable when the total flow rate is big enough. The completely passive natural convection flow is shown to be unstable.