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Reynolds stress modeling in computational simulations of the urban atmospheric boundary layer flow (CROSBI ID 586789)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Juretić, Franjo ; Kozmar, Hrvoje Reynolds stress modeling in computational simulations of the urban atmospheric boundary layer flow // Proceedings of the 7th International Congress of Croatian Society of Mechanics / Virag, Zdravko ; Kozmar, Hrvoje ; Smojver, Ivica (ur.). Zagreb: Studio Hrg, 2012

Podaci o odgovornosti

Juretić, Franjo ; Kozmar, Hrvoje

engleski

Reynolds stress modeling in computational simulations of the urban atmospheric boundary layer flow

A new approach for determining the physically valid boundary conditions has been developed to allow for an appropriate treatment of Reynolds stress modeling in computational simulations of the urban ABL flow using the k-ε turbulence model. The obtained computational results agree very well with the experimental results. In particular, the calculated mean velocity, Reynolds stress and turbulence kinetic energy profiles remain within ±10% of the experimental results. It is expected that the proposed approach would improve computational simulation of the ABL flow due to an appropriate treatment of Reynolds stress modeling as well as turbulence kinetic energy that declines with increasing height, in agreement with atmospheric conditions. However, this procedure is not yet a mature approach for everyday use. Future work would attempt to make the proposed procedure more appropriate for Computational Wind Engineering (CWE) calculations by adding a physically-valid set of source terms in the momentum equation.

Urban atmospheric boundary layer flow; atmospheric turbulence; Reynolds stress; computational simulation

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Podaci o prilogu

2012.

objavljeno

Podaci o matičnoj publikaciji

Proceedings of the 7th International Congress of Croatian Society of Mechanics

Virag, Zdravko ; Kozmar, Hrvoje ; Smojver, Ivica

Zagreb: Studio Hrg

978-953-6986-06-4

Podaci o skupu

7th International Congress of Croatian Society of Mechanics

predavanje

22.05.2012-25.05.2012

Zadar, Hrvatska

Povezanost rada

Fizika, Strojarstvo, Temeljne tehničke znanosti