Lagrangian Scheme for Scalar Advection-Diffusion. Application to Pollutant Transport

Autor:	Benoît Trouette, Georges Halim Atallah, Stéphane Vincent
Rok vydání:	2021
Předmět:	Physics::Fluid Dynamics Physics symbols.namesake Flow (mathematics) Advection symbols Scalar (physics) Applied mathematics Eulerian path Péclet number Numerical diffusion Diffusion (business) Vortex
Zdroj:	Notes on Numerical Fluid Mechanics and Multidisciplinary Design ISBN: 9783030658199
DOI:	10.1007/978-3-030-65820-5_23
Popis:	A Lagrangian scheme devoted to the approximation of advection term in advection-diffusion equation (ADE) is proposed to deal with large values of Peclet number. Advection and diffusion of circular concentration in a vortex flow are considered for validation purpose. The Lagrangian scheme reduces the numerical diffusion to almost computer error and provides better results than other Eulerian classical schemes of the literature. The injection of a pollutant in a cavity is finally illustrated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3874c977af258ba2ddf72b5bc0f49111 https://doi.org/10.1007/978-3-030-65820-5_23 Zobrazit plný text záznamu