Naslov
An atmospheric gravitational vortex as a flow object: improvement of the three-layer model

Autori
Nižetić, Sandro

Izvornik
Geofizika (0352-3659) 27 (2010), I; 1-20

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
gravitational vortex; solar chimney; numerical modelling.

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 Ninic 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.

Izvorni jezik
Engleski

Znanstvena područja
Temeljne tehničke znanosti

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