A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The hydraulics of doorway exchange flows
AbstractThe exchange flow through an opening (such as a doorway) in a portion, separating spaces containing fluid of different densities, is described in terms of two-layer hydraulics. The approach is based on the development, by Dalziel [Ph.D. thesis, Cambridge University1988; J. Fluid Mech. (in press)], for a two-layer system of the functional formalism of Gill [J. Fluid Mech. 80,641–671 (1977)]. It is shown that the opening can act as a hydraulic control in a fashion analogous to a weir in single-layer channel flows. It is shown that hydraulic theory predicts the observed phenomenon that the upper (warmer) layer in doorway exchange flow is thinner than the lower (cooler) layer. The predictions for exchange rates and interface heights are compared with laboratory experiments. The effect of a forced net flow through the opening is also considered.
The hydraulics of doorway exchange flows
AbstractThe exchange flow through an opening (such as a doorway) in a portion, separating spaces containing fluid of different densities, is described in terms of two-layer hydraulics. The approach is based on the development, by Dalziel [Ph.D. thesis, Cambridge University1988; J. Fluid Mech. (in press)], for a two-layer system of the functional formalism of Gill [J. Fluid Mech. 80,641–671 (1977)]. It is shown that the opening can act as a hydraulic control in a fashion analogous to a weir in single-layer channel flows. It is shown that hydraulic theory predicts the observed phenomenon that the upper (warmer) layer in doorway exchange flow is thinner than the lower (cooler) layer. The predictions for exchange rates and interface heights are compared with laboratory experiments. The effect of a forced net flow through the opening is also considered.
The hydraulics of doorway exchange flows
Dalziel, S.B. (author) / Lane-Serff, G.F. (author)
Building and Environment ; 26 ; 121-135
1991-01-01
15 pages
Article (Journal)
Electronic Resource
English
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