+ 2019 ALBUS – Atmospheric Lattice Boltzmann Urban Simulation – Application for operational modelling of microclimate & air pollution

Project promoter

Lionel SOULHAC Professor INSA Lyon

lionel.soulhac@nullinsa-lyon.fr

Member laboratorie(s)


DURATION : 3 ans

FUNDING :  221 800 €

INDUSTRIAL SECTOR : Automobile

PLATFORM INGENIERIE@LYON : Energy/ Environnement

Area(s) of search

OBJECTIVE

The general objective of the ALBUS (Atmospheric Lattice Boltzmann Urban Simulation) project, supported by the LMFA and CETHIL laboratories, is to develop software tools for numerical simulation of the micro-scale urban atmosphere. These software will be designed to be used in engineering studies and operational management by economic actors (industrialists, consulting firms and service companies) and public services (government agencies and local authorities) in the fields of urban microclimate and atmospheric pollution.

The Lattice Boltzmann Method (LBM) of computational fluid dynamics (with Large Eddy Simulation resolved turbulence) is one of the most efficient methods for simulating turbulent flows in complex geometry. Although it is now widely used in the automotive and aerospace fields, this approach has been little applied to atmospheric flows. The aim of the ALBUS project is to use this innovative high-fidelity approach to characterize and parameterize specific processes upstream of the development of two operational software tools:
  • An urban microclimate simulation software that can provide district or city-wide temperature maps, to study the energy environment of a building or to assess the impact of a new urban development (greenway, neighborhood reconfiguration, green walls, etc.), in a process of adaptation of the city to climate change.
  • A very high-resolution simulation software for the dispersion of pollutants, to describe the concentrations in urban areas at the individual scale (resolution of a few meters), significantly improving the validity of the results without increasing the time required. This software could be applied for operational use in the context of air quality (daily pollution and pollution peaks) and risk management (industrial accident, transport of hazardous materials or terrorist attack).
The functionalities and optimized simulation time of these two tools can be valuable for use in an engineering context.

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Partnerships : M2P2, Aix Marseille Université & CITI, INSA/INRIA

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