163254 20251024172258.0 doi 10.1016/j.proci.2025.105838 sideral 145769 ART-2025-145769 eng Un, Tin-Hang On the performance of the joint velocity-scalar PDF method near walls 2025 Wall modelling of turbulent reacting flows is crucial for applications such as aero-engine simulations. The velocity-scalar probability density function (PDF) method has proven effective for modelling flames in complex combustion regimes, but its application near walls is computationally expensive due to the need for wall-resolving grids, even with the aid of adaptive mesh refinement. This study aims to reduce computational cost by employing a modern wall model in large eddy simulations (LES). We demonstrate that a simple subgrid model is sufficient for a wide range of wall distances, though modification to the stochastic forcing is needed to prevent spurious pressure formation near walls. The proposed wall-modelled stochastic fields framework significantly improves upon existing methods without wall modelling. It also highlights the potential for cost savings by using wall-modelled LES-PDF. For this purpose, the Eulerian stochastic fields framework is particularly suited as it can integrate with most existing LES wall models with minimal modifications. Access copy available to the general public Unrestricted info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Navarro-Martinez, Salvador Universidad de Zaragoza (orcid)0000-0001-8342-6573 5001 600 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Mecánica de Fluidos 41 (2025), 105838 [6 pp.] Proc. Combust. Inst. PROCEEDINGS OF THE COMBUSTION INSTITUTE 1540-7489 2070702 http://zaguan.unizar.es/record/163254/files/texto_completo.pdf Versión publicada 2682603 http://zaguan.unizar.es/record/163254/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:163254 articulos driver 2025-10-24-16:55:50 ARTICLE