A Four-Zone Model and Nonlinear Dynamic Analysis of Solution Multiplicity of Buoyancy Ventilation in Underground Building

Table 1

Criterion for scenario 1 ((k is fixed, α is control parameter, and k > 0).

k	α	Realization 1	Realization 2
		No	Stable
		Saddle point of index 2	Stable
		Saddle-focus point of index 2	Stable
		Stable	Stable
		Stable	Saddle-focus point of index 2
		Stable	Saddle point of index 2
		Stable	No