Engineering Mechanics

Proceedings Vol. 7 (2001)

INŽENÝRSKÁ MECHANIKA 2001

ENGINEERING MECHANICS 2001

Copyright © 2001 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Prague

 

Zúñiga-González I., Maršík F.
pages 306 - +6p, full text

Two-phase flow in a partially closed nonadiabatic axisymmetric vertical channel is simulated by pressure relaxation technique. The lower end of the channel (cooling tower) is located in a certain inlet height from the flat plate (ground). The injection of cooling water caused the nonadiabatic character of the flow. The finite volume method is implemented assuming a laminar and turbulent viscous incompressible flow with phase transition in a staggered grid arrangement. The main aspects analysed were: the stability of the pressure-velocity coupling, the dependence on the grid size variation and on the variation of the under-relaxation parameters, and the droplet radius variation. The effects of the inlet height and of the channel geometry (channel is taken as a rotational hyperboloid) on the flow velocity and on the wet air transport can be discussed.

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