000163254 001__ 163254 000163254 005__ 20251024172258.0 000163254 0247_ $$2doi$$a10.1016/j.proci.2025.105838 000163254 0248_ $$2sideral$$a145769 000163254 037__ $$aART-2025-145769 000163254 041__ $$aeng 000163254 100__ $$aUn, Tin-Hang 000163254 245__ $$aOn the performance of the joint velocity-scalar PDF method near walls 000163254 260__ $$c2025 000163254 5060_ $$aAccess copy available to the general public$$fUnrestricted 000163254 5203_ $$aWall 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. 000163254 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 000163254 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000163254 700__ $$0(orcid)0000-0001-8342-6573$$aNavarro-Martinez, Salvador$$uUniversidad de Zaragoza 000163254 7102_ $$15001$$2600$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Mecánica de Fluidos 000163254 773__ $$g41 (2025), 105838 [6 pp.]$$pProc. Combust. Inst.$$tPROCEEDINGS OF THE COMBUSTION INSTITUTE$$x1540-7489 000163254 8564_ $$s2070702$$uhttps://zaguan.unizar.es/record/163254/files/texto_completo.pdf$$yVersión publicada 000163254 8564_ $$s2682603$$uhttps://zaguan.unizar.es/record/163254/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000163254 909CO $$ooai:zaguan.unizar.es:163254$$particulos$$pdriver 000163254 951__ $$a2025-10-24-16:55:50 000163254 980__ $$aARTICLE