Articles producció científicaEnginyeria Mecànica

Computational fluid dynamics challenge on indoor dispersion of pathogen-laden aerosols

  • Identification data

    Identifier:  imarina:9448908
    Authors:  Pallares, Jordi; Fabregat, Alexandre; Lavrinenko, Akim; Marques, Nelson; Santos, Bruno; Mosca, Gabriele; Vega, Pedro Obando; Ravnik, Jure; Vovk, Nejc; Fraga, Bruno; Monka, Aleksandra; Martinez, Manuel; Mestre-Curto, Naomi; de Souza, Francisco Jose; Fontes, Douglas; Juengling, Natalie; Niessner, Jennifer; Castilla, Robert; Garcia-Vilchez, Merce; Fletcher, David F; Inthavong, Kiao; Hribersek, Matjaz; Steinmann, Paul; Wedel, Jana; Duchaine, Florent; Sankurantripati, Shriram; Amari, Leo; Janiga, Gabor; Marchioli, Cristian; Cito, Salvatore
    Abstract:
    This paper presents and discusses the results of the "2024 International Computational Fluid Dynamics Challenge on the long-range indoor dispersion of pathogen-laden aerosols" aimed at assessing the ability of different computational codes and turbulence models to reproduce the dispersion of particles produced by a turbulent natural convection flow enclosed in a room sized cubical cavity. A total of 12 research groups from ten different countries have conducted 15 simulations of the same flow configuration by solving the Reynolds averaged Navier-Stokes (RANS) equations, the unsteady Reynolds averaged Navier-Stokes (URANS) equations or using scale adaptive simulations (SAS), large-eddy simulations (LES), or hybrid (URANS-LES) techniques. Results for the velocity field and the particle dispersion provided by the different simulations are compared extensively, including the reference results provided by a direct numerical simulation (DNS). In general, LES and hybrid methods reproduce the time-averaged flow field correctly, the spatial distribution of the turbulence kinetic energy, and the particle dispersion. The performance of SAS is similar to that of LES and hybrid methods while the predictions of the RANS and URANS simulations exhibit larger deviations with respect to DNS. In general, the particle dispersion is better reproduced by simulations that capture correctly the spatial distribution of the turbulence kinetic energy.
  • Others:

    Link to the original source: https://pubs.aip.org/aip/pof/article-abstract/37/2/025226/3337454/Computational-fluid-dynamics-challenge-on-indoor?redirectedFrom=fulltext
    APA: Pallares, Jordi; Fabregat, Alexandre; Lavrinenko, Akim; Marques, Nelson; Santos, Bruno; Mosca, Gabriele; Vega, Pedro Obando; Ravnik, Jure; Vovk, Nejc; (2025). Computational fluid dynamics challenge on indoor dispersion of pathogen-laden aerosols. PHYSICS OF FLUIDS, 37(2), 025226-. DOI: 10.1063/5.0252665
    Paper original source: PHYSICS OF FLUIDS. 37 (2): 025226-
    Article's DOI: 10.1063/5.0252665
    Journal publication year: 2025-02-01
    Entity: Universitat Rovira i Virgili
    Paper version: info:eu-repo/semantics/acceptedVersion
    Record's date: 2026-05-09
    URV's Author/s: Cito, Salvatore / Fabregat Tomàs, Alexandre / Martínez del Álamo, Manuel / Pallarés Curto, Jorge María
    Department: Enginyeria Mecànica
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Publication Type: Journal Publications
    Author, as appears in the article.: Pallares, Jordi; Fabregat, Alexandre; Lavrinenko, Akim; Marques, Nelson; Santos, Bruno; Mosca, Gabriele; Vega, Pedro Obando; Ravnik, Jure; Vovk, Nejc; Fraga, Bruno; Monka, Aleksandra; Martinez, Manuel; Mestre-Curto, Naomi; de Souza, Francisco Jose; Fontes, Douglas; Juengling, Natalie; Niessner, Jennifer; Castilla, Robert; Garcia-Vilchez, Merce; Fletcher, David F; Inthavong, Kiao; Hribersek, Matjaz; Steinmann, Paul; Wedel, Jana; Duchaine, Florent; Sankurantripati, Shriram; Amari, Leo; Janiga, Gabor; Marchioli, Cristian; Cito, Salvatore
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Thematic Areas: Physics, fluids & plasmas, Mechanics of materials, Mechanics, Mechanical engineering, Fluid flow and transfer processes, Engineering (miscellaneous), Engenharias iii, Condensed matter physics, Computational mechanics, Astronomia / física
    Author's mail: salvatore.cito@urv.cat, salvatore.cito@urv.cat, alexandre.fabregat@urv.cat, alexandre.fabregat@urv.cat, alexandre.fabregat@urv.cat, manuel.martinezd@urv.cat, manuel.martinezd@urv.cat, manuel.martinezd@urv.cat, jordi.pallares@urv.cat, jordi.pallares@urv.cat
  • Keywords:

    Simulation
    Ran
    Particulate matter
    Natural-convection
    Les
    Flow
    Cfd
    Cavity
    Air
    Computational Mechanics
    Condensed Matter Physics
    Engineering (Miscellaneous)
    Fluid Flow and Transfer Processes
    Mechanical Engineering
    Mechanics
    Mechanics of Materials
    Physics
    Fluids & Plasmas
    Engenharias iii
    Astronomia / física
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