Fluidyn -PANAIR A Three-Dimensional tool to simulate Atmospheric Dispersion of Urban and Peri- Urban...

fluidyn-PANAIR

A Three-Dimensional tool to simulate Atmospheric Dispersion of Urban and Peri-

Urban Pollution

fluidyn – PANAIR

Fluidyn-PANAIRFluidyn-PANAIRFluidyn-PANAIRFluidyn-PANAIR

fluidyn-PANAIR

3-D fluid dynamic software3-D fluid dynamic software

Air Quality of Urban areasAir Quality of Urban areas

Pollutant dispersion into the atmospherePollutant dispersion into the atmosphere

Various weather conditionsVarious weather conditions

Assess the impact of any changes in the existing infrastructure Assess the impact of any changes in the existing infrastructure

Effects of pollution due to upcoming projectsEffects of pollution due to upcoming projects

MethodologiesMethodologies

fluidyn-PANAIR

Puff model for source identificationPuff model for source identification

Pre- and Post- Processor integrated with SolverPre- and Post- Processor integrated with Solver

Higher order numerical scheme for greater Higher order numerical scheme for greater

accuracyaccuracy

Manual mesh generatorManual mesh generator

Multiple Sources and pollutants Multiple Sources and pollutants

Transient emissions Transient emissions

Fully interactive user friendly graphical interfaceFully interactive user friendly graphical interface

Multi-windows interactive presentationMulti-windows interactive presentation

Video animationVideo animation

FeaturesFeatures

fluidyn-PANAIR

Estimation of concentration of Gas and Particle pollutantsEstimation of concentration of Gas and Particle pollutants

Simulation of pollutant dispersion in complex network of Simulation of pollutant dispersion in complex network of roads and building sites roads and building sites

Natural convection in the urban canopyNatural convection in the urban canopy

Impact analysis of site with respect to Air qualityImpact analysis of site with respect to Air quality

Visual representation of air quality for different weather Visual representation of air quality for different weather situations situations

FeaturesFeatures

fluidyn-PANAIR

Informations Informations Sources:Sources:• GIS FilesGIS Files• Monitoring Network Monitoring Network • Population dataPopulation data

PRE-PROCESSORPRE-PROCESSOR

Terrain Model Terrain Model

Weather DataWeather Data

Emissions InventoryEmissions Inventory

PROCESSORPROCESSOR

MeshMesh

Meteorological Meteorological ProcessingProcessing

Pollutants- DispersionPollutants- Dispersionby Fluid dynamicsby Fluid dynamics

Sub-models types:Sub-models types:• Heat RadiationHeat Radiation• Pollutant depositionPollutant deposition• Turbulence Turbulence

POST-PROCESSORPOST-PROCESSOR

Wind FieldWind Field

Pollutants MappingPollutants Mapping

Concentrations EvolutionConcentrations Evolution

Use:Use:• Urban Road PlanningUrban Road Planning• Air quality predictionAir quality prediction• Emission managementEmission management

fluidyn-PANAIR

Forest region

Altitude curves

Water Body

Monitor Points

Sub Options For Tracing/Modifying Terrain Objects

TopographyTopography

fluidyn-PANAIR

List of Pollutants

Properties of sulfur dioxide

PANAIR

Chemical databaseChemical database

fluidyn-PANAIR

Urban Areas

Point Source

To add,delete,modify,copy/move and to feed/show data for an added source

EmissionEmission

fluidyn-PANAIR

Weather dataWeather data

fluidyn-PANAIR

To set simulation parameters

To select models and start simulation

Additional simulation options

Simulation optionsSimulation options

fluidyn-PANAIR

Contours

Grid

Velocity Vectors

XY PlotSurface Plot

ResultsResults

fluidyn-PANAIR

Example : velocity fieldsExample : velocity fields

fluidyn-PANAIR

Example : altitude contoursExample : altitude contours

fluidyn-PANAIR

Example : concentration contoursExample : concentration contours

fluidyn-PANAIR

CASE STUDY – 4

“Urban Air Quality Modeling for CITY OF LYON”

fluidyn-PANAIR

Meteorological DataMeteorological Data::Hourly meteorological data extracted from the 15 Hourly meteorological data extracted from the 15

minutes observations at four weather stationsminutes observations at four weather stations

Emission SourceEmission Source::The fugitive emissions from anthropogenic activities, The fugitive emissions from anthropogenic activities,

small scale industries and miscellaneous sources small scale industries and miscellaneous sources added. added.

Stack emissions from large scale industries like Power Stack emissions from large scale industries like Power Plants are considered separately as point Plants are considered separately as point sources. sources.

Example : city of Lyon, FranceExample : city of Lyon, France

fluidyn-PANAIR


fluidyn-PANAIR

Road network & vehicular count


fluidyn-PANAIR

Example : zoom on road networkExample : zoom on road network

fluidyn-PANAIR

Example : velocity vectorsExample : velocity vectors

fluidyn-PANAIR

Example : PM10 resultsExample : PM10 results

fluidyn-PANAIR

Example : SO2 resultsExample : SO2 results

fluidyn-PANAIR

Example : results in vertical planeExample : results in vertical plane

fluidyn-PANAIR

Example : isosurface resultsExample : isosurface results

fluidyn-PANAIR

M4 - BERTHELOT: NOx

0

20

40

60

80

100

120

140

160

0 5 10 15 20 25 30

Time in Hrs.

Co

nc. in

mic

ro g

m/c

um

MonitoredPredicted

Comparison with measuresComparison with measures

fluidyn-PANAIR

Comparison with measuresComparison with measures

fluidyn-PANAIR

LAMExample : city of Greenwich, UKExample : city of Greenwich, UK

fluidyn-PANAIR

• The topographical features include altitude contours, The topographical features include altitude contours, green zones, road network and water bodiesgreen zones, road network and water bodies

• Terrain undulations from 10 m up to 100 mTerrain undulations from 10 m up to 100 m

• Size of the study domainSize of the study domain : 22.7 Km (E-W direction) : 22.7 Km (E-W direction) 17.36 Km (N-S direction) 17.36 Km (N-S direction)

• Surface of the domainSurface of the domain : 390 km: 390 km22

• Height of the DomainHeight of the Domain : 650.0 m: 650.0 m

Example : city of Greenwich, UKExample : city of Greenwich, UK

fluidyn-PANAIR

Topographical features and Computational Domain


fluidyn-PANAIR

Data, recorded by London Weather CenterData, recorded by London Weather Center

Hourly meteorological data from 1989 to 1998Hourly meteorological data from 1989 to 1998

Wind rose data for 16 sectorsWind rose data for 16 sectors


fluidyn-PANAIR


fluidyn-PANAIR

• 3544 Roads3544 Roads

• Data depending on traffic, car speed, % of heavy vehiclesData depending on traffic, car speed, % of heavy vehicles

• Industrial sources : 78Industrial sources : 78

• SOSO22, C, C66HH66, CO, CO, CO, CO22, PM, PM1010, C, C33HH88, CH, CH44, Smoke, NMVOC, TSP and , Smoke, NMVOC, TSP and

NONOxx, ,


fluidyn-PANAIR

Total Road Network on the Computational Domain Considered


fluidyn-PANAIR

3-D view of Computational domain with body fitted mesh


fluidyn-PANAIR

Example : altitude contoursExample : altitude contours

fluidyn-PANAIR

Example : velocity vectorsExample : velocity vectors

fluidyn-PANAIR

Example : turbulence contoursExample : turbulence contours

fluidyn-PANAIR

Example : concentration contoursExample : concentration contours

fluidyn-PANAIR

Example : zoom on a crossingExample : zoom on a crossing

fluidyn-PANAIR

Horizontal and vertical mesh

Zoomed view of the mesh


fluidyn-PANAIR


fluidyn-PANAIR

Contours of concentrationsExample : zoom on a crossingExample : zoom on a crossing

fluidyn-PANAIR

Road impact (street scale)

CONCENTRATIONS OF NOx

Example : zoom on a roadExample : zoom on a road

fluidyn-PANAIR

FOR MORE INFORMATION….FOR MORE INFORMATION….

http://www.fluidyn.comhttp://www.fluidyn.com

[email protected]@fluidyn.com

Fluidyn -PANAIR A Three-Dimensional tool to simulate Atmospheric Dispersion of Urban and Peri- Urban...

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