Variety modes and chaos in natural ventilation or smoke venting system

This paper refers to the existence of the variety modes and 'Chaos' in building natural ventilation or smoke venting, systems, and provides the some computational instances by means of the network model. And it is pointed out that the multiplicity of the variety modes might have the potential factor violative to the resident safety Or comfort Chaos characteristics in the ventilation systems are illustrated by the maps in which Just a little change of initial values of calculation results in the quite another solution. The verification of the variety modes in the ventilation system done by the CFD calculation is as an additional remark