An example of vertical flow can be seen by adding a hallway above the kitchen and living in the example (TwoCompartmentStep4). Add
COMPA,UpstairsHallway,9.6,2.4,2.4,0,0,2.4,GYPSUM,OFF,GYPSUM
for the compartment and
HVENT,3,4,1,1,2,1,1,2,0,3,0.1
VVENT,3,2,2,2,1
for the stairway and upstairs window (VerticalFlow) . The Smokeview rendition should look like
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with the vertical flow vent used to represent the stairwell. This is similar to the conditions that occurred in the Sharon, PA fire in 1987 (1). And the upper layer temperature and carbon monoxide concentration are
(1) Full Scale Simulation of a Fatal Fire and Comparison of Results With Two Multiroom Models, Levine, R. S.; Nelson, H. E., NISTIR 90-4268 (1990).
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