Pregled bibliografske jedinice broj: 769007
Viscous Treatment of the Snow Phase in Eulerian-Eulerian Simulations of Drifting Snow
Viscous Treatment of the Snow Phase in Eulerian-Eulerian Simulations of Drifting Snow // 14th International Conference on Wind Engineering
Porto Alegre, Brazil, 2015. (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), ostalo)
CROSBI ID: 769007 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Viscous Treatment of the Snow Phase in Eulerian-Eulerian Simulations of Drifting Snow
Autori
Boutanious, Ziad ; Jasak, Hrvoje
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), ostalo
Skup
14th International Conference on Wind Engineering
Mjesto i datum
Porto Alegre, Brazil, 21.06.2015. - 26.06.2015
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Drifting Snow; Eulerian; Viscosity; Gamma Distribution; Wind Tunnel; Suspension Layer; Saltation Layer; Snow Flux; K-Epsilon; Particle Collision.
Sažetak
A novel viscosity model for drifting snow was developed to meet the CFD modeling requirements of drifting snow using a fully two-way coupled Eulerian-Eulerian formulation. This approach allowed explicit resolution of the saltation layer without resorting to empiricism, unlike other Eulerian-Eulerian models. Initial validations were carried out against detailed snow flux, snow transport, airflow, and turbulence measurements in a controlled experimental simulation of a non-equilibrium saltation layer in a wind tunnel using actual snow particles. The two-way coupled approach using the novel viscosity model was found capable to accurately simulate drifting snow in the saltation layer and agreed with the experimental findings in general. Recommendations were made to improve the turbulence modeling, improve the method’s accuracy in the suspension layer and to allow simulating a drifting snow phase with a particle size distribution.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
