Concept

Modélisation de la dispersion atmosphérique

Publications associées (221)

Effect of pre-aerated approach flow on delector-generated jets

Flip buckets are terminal spillway elements, generating free jets for energy dissipation. Deflectors are an alternative to flip buckets with constructional ease yet of similar hydraulic features. A first experimental study published at the 33rd IAHR Congre ...

2011

Large-eddy simulation of atmospheric boundary layer flow through wind turbines and wind farms

Fernando Porté Agel, Yu-Ting Wu, Hao Lu

Accurate prediction of atmospheric boundary layer (ABL) flow and its interactions with wind turbines and wind farms is critical for optimizing the design (turbine siting) of wind energy projects. Large-eddy simulation (LES) can potentially provide the kind ...

Elsevier2011

Large eddy simulation study of scalar transport in fully developed wind-turbine array boundary layers

Marc Parlange, Charles Vivant Ignacio Meneveau, Marc Calaf Bracons

become larger, they begin to attain scales at which two-way interactions with the atmospheric boundary layer (ABL) must be taken into account. Several studies have shown that there is a quantifiable effect of wind farms on the local meteorology, mainly thr ...

American Institute of Physics2011

Chute aerators: Pre-aerated approach flow

Michael Pfister

Long spillways often include more than one chute aerator to assure an appropriate cavitation protection. The first aerator guarantees sufficient bottom air concentration along a limited streamwise distance attributed to deaeration. Further downstream, the ...

2011

Improving the Turbulence Coupling between High Resolution Numerical Weather Prediction Models and Lagrangian Particle Dispersion Models

Balazs Szintai

For the modelling of the transport and diffusion of atmospheric pollutants during accidental releases, sophisticated emergency response systems are used. These modelling systems usually consist of three main parts. The atmospheric flow conditions can be si ...

EPFL2010

Dispersion of fast ions in models of anisotropic plasma turbulence

Paolo Ricci, Kyle Gustafson

oral conference presentation ...

2010

Dispersion of fast ions in models of anisotropic plasma turbulence

Paolo Ricci, Kyle Gustafson

poster presentation ...

2010

Optimal Methodology to Generate Road Traffic Emissions for Air Quality Modeling

Quoc Bang Ho

Growing population, consuming a large amount of energy such as combustion of fossil fuel, increasing pollutant emissions in the atmosphere are the threats to the sustainable development of our planet in general, and of the air quality in particular. Accord ...

EPFL2010

Development of the Jungfraujoch UV DIAL Lidar to Observe the Vertical Ozone Distribution in the Context of Stratosphere Troposphere Exchange and Long Range Transport

Marcel Bartlome

Tropospheric ozone is a climate relevant greenhouse gas, as well as an atmospheric pollutant. Its abundance in the troposphere is mainly governed by the influx of stratospheric air masses and the photochemical production due to anthropogenic and biogenic o ...

EPFL2010

A Simple Model for the Afternoon and Early-Evening Decay of Turbulence over Different Land Surfaces

Marc Parlange, Chad Higgins, Eric Richard Pardyjak, Daniel Nadeau

Recent years have seen an increasing interest in the late-afternoon transition between the convective and stable regimes of the atmospheric boundary layer. There are several differences between the two regimes. On one hand, the convective boundary layer is ...

2010

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