Geofizika, Vol. 27 No. 1, 2010.
Izvorni znanstveni članak
An atmospheric gravitational vortex as a flow object: improvement of the three-layer model
Sandro Nižetić
Sažetak
An improved physical and analytical three-layer model of gravitational vortex columns (GVCs) for solar chimney power plants is developed in this paper. In essence, this model represents a further improvement and upgrade of the three-layer model proposed in Ninić et al. (2009). The improvements of the three-layer model deal with internal friction, variable vertical velocity (by height) in the central GVC spiraling upward flow, and variable angular momentum of the downdraft shell. A numerical solution of the improved model is given as a characteristic case and is compared to the elementary GVC model. The results show that the introduced improvements are important parameters for further analysis of gravitational vortex columns.
Ključne riječi
Gravitational vortex; solar chimney; numerical modelling
Hrčak ID:
57730
URI
Datum izdavanja:
30.6.2010.
Posjeta: 1.419 *