Pregled bibliografske jedinice broj: 789599
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 // The 14th International Conference on Wind Engineering
Porto Alegre, Brazil, 2015. (predavanje, nije recenziran, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 789599 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Viscous treatment of the snow phase in Eulerian-Eulerian simulations of drifting snow
Autori
Boutanios, Ziad ; Jasak, Hrvoje
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Skup
The 14th International Conference on Wind Engineering
Mjesto i datum
Porto Alegre, Brazil, 21.06.2015. - 26.06.2015
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Nije recenziran
Ključne riječi
Drifting Snow; Eulerian Viscosity; Gamma Distribution; Wind Tunnel; Suspension Layer; Saltation Layer; Snow Flux
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
