Verification and validation considerations regarding the qualification of numerical schemes for LES for dilution problems

Large-eddy simulation of the turbulent free-surface flow in an unbaffled stirred tank reactor

“…Convection terms are handled with an adaptation of the flux-corrected transport (FCT) formulation of Kuzmin and Turek (2002). Its main features are reported by Ducros et al (2010). The resulting scheme is both robust and accurate, since a minimal amount of numerical diffusion is added to ensure the computation stability (Kuzmin and Turek, 2002).…”

Effectiveness of directional airflow in reducing containment failures in hospital isolation rooms generated by door opening

“…Wall-Adapting Local Eddy-viscosity (WALE) model was used in the simulations. This model was designed to function well even near solid surfaces (Nicoud, 1999) and it has been successfully used in various modelling scenarios (Jayaraju, 2009;Ducros et al, 2010;Lin et al, 2013). Second order backward Euler and bounded central difference schemes were used in the simulations for time and spatial discretization respectively.…”

CFD analysis of intra and inter fuel assembly mixing

“…For RANS calculation, a finite-element based 2 nd order upwind scheme is used to discretise the convection term (called ef_stab). Ducros et al (2010) give detailed information on this scheme. The complete numerical scheme for RANS calculations is summarized in For LES, the convection term is discretized by a 2 nd order centered scheme developed by Kuzmin and Turek (2004) for scalar transport.…”