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Assessment of discretization schemes applied to the transport of a passive scalar in a ventilated enclosure

Abstract : This paper is a comparative study of classical spatial discretization schemes applied to an experimental case. Numerical simulations are performed according to large cell Péclet numbers. This should show the limitations of some schemes such as the upwind-difference scheme (numerical diffusion) or the central-difference scheme (overshoot and undershoot) for large cell Péclet number. However, in the case of the transport of tracer gas concentration in a ventilated enclosure, we show here that these kinds of schemes are a priori sufficient.
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Submitted on : Friday, September 4, 2020 - 4:51:44 PM
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Georges Halim Atallah, Emmanuel Belut, Sullivan Lechêne, Benoît Trouette, Stéphane Vincent. Assessment of discretization schemes applied to the transport of a passive scalar in a ventilated enclosure. 19th International Conference on Numerical Analysis and Applied Mathematics ICNAAM, Sep 2019, Rhodes, Greece. ⟨hal-02657733⟩

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