Implementation of an immersed boundary method in the Meso-NH v5.2 model: applications to an idealized urban environment

This study describes the numerical implementation, verification and validation of an immersed boundary method (IBM) in the atmospheric solver Meso-NH for applications to urban flow modeling. The IBM represents the fluid-solid interface by means of a level-set function and models the obstacles as par...

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Veröffentlicht in:	Geoscientific Model Development 2019-07, Vol.12 (6), p.2607-2633
Hauptverfasser:	Auguste, Franck, Réa, Géraldine, Paoli, Roberto, Lac, Christine, Masson, Valery, Cariolle, Daniel
Format:	Artikel
Sprache:	eng
Schlagworte:	Atmospheric boundary layer Atmospheric models Barriers Benchmarking Bluff bodies Boundary layer stability Boundary layers Climatology Computational fluid dynamics Computer simulation Earth Sciences Fluid flow Fluxes Incompressibility Iterative methods Large eddy simulation Large eddy simulations Methods Mirror point Neutral stability Novels Oceanic eddies Permeability Planetary boundary layer Poisson equation Roughness Sciences of the Universe Technology application Turbulent flow Turbulent fluctuations Turbulent fluxes Urban environments
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Beschreibung
Zusammenfassung:	This study describes the numerical implementation, verification and validation of an immersed boundary method (IBM) in the atmospheric solver Meso-NH for applications to urban flow modeling. The IBM represents the fluid-solid interface by means of a level-set function and models the obstacles as part of the resolved scales.
ISSN:	1991-9603 1991-959X 1991-962X 1991-9603 1991-962X 1991-959X
DOI:	10.5194/gmd-12-2607-2019