The solution of conjugated multiphase heat and mass transfer problems
1979; Elsevier BV; Volume: 34; Issue: 6 Linguagem: Inglês
10.1016/0009-2509(79)85133-7
ISSN1873-4405
AutoresE. James Davis, Sudhakar K. Venkatesh,
Tópico(s)Computational Fluid Dynamics and Aerodynamics
ResumoThree types of conjugated boundary value problems that arise when heat and/or mass are transferred between contiguous phases are analyzed by means of integral equation formulations. The systems are classified according to the type of differential equation that describes the temperature or concentration field in a phase, and systematic methods of solution are illustrated for each type of conjugated system. These include parabolic-parabolic systems, illustrated by a laminar gas/laminar liquid gas absorption problem, and parabolic-elliptic systems of which heat transfer from a thick-walled tube to a laminar flow is an example. The third type, which is more frequently encountered in chemical engineering, involves the conjugation of a partial differential equation with an ordinary differential equation. The temperature distribution in the falling film reactor is examined from this point of view.
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