This work aims at investigating an acetone/air aerosol swirling jet through an Eulerian-Lagrangian Reynolds-averaged Navier-Stokes (RANS) approach under uncertainty. The uncertainty is related to three parameters: the inflow velocity dissipation, a blending coefficient between two dispersion models, and the turbulent Schmidt number. Uncertainty is propagated via a Polynomial Chaos Expansion (PCE) representation, which allows for the visualization of confidence bars associated with numerical results, to be compared with reference Direct Numerical Simulation (DNS) data.
uncertainty quantification analysis of RANS of spray swirling jets / Liberatori, Jacopo; Petrocchi, Andrea; MALPICA GALASSI, Riccardo; Im, HONG GEUN; Valorani, Mauro; Ciottoli, Pietro Paolo. - (2021). (Intervento presentato al convegno 18th International Conference on Flow Dynamics (ICFD2021) tenutosi a Virtual Event).
uncertainty quantification analysis of RANS of spray swirling jets
Jacopo Liberatori
Primo
;Andrea PetrocchiSecondo
;Riccardo Malpica Galassi;Hong G. Im;Mauro ValoraniPenultimo
;Pietro Paolo CiottoliUltimo
2021
Abstract
This work aims at investigating an acetone/air aerosol swirling jet through an Eulerian-Lagrangian Reynolds-averaged Navier-Stokes (RANS) approach under uncertainty. The uncertainty is related to three parameters: the inflow velocity dissipation, a blending coefficient between two dispersion models, and the turbulent Schmidt number. Uncertainty is propagated via a Polynomial Chaos Expansion (PCE) representation, which allows for the visualization of confidence bars associated with numerical results, to be compared with reference Direct Numerical Simulation (DNS) data.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
