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fluidyn-PANAIR
A Three-Dimensional tool to simulate Atmospheric Dispersion of Urban and Peri-
Urban Pollution
fluidyn – PANAIR
Fluidyn-PANAIRFluidyn-PANAIRFluidyn-PANAIRFluidyn-PANAIR
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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
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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
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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
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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
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fluidyn-PANAIR
Forest region
Altitude curves
Water Body
Monitor Points
Sub Options For Tracing/Modifying Terrain Objects
TopographyTopography
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List of Pollutants
Properties of sulfur dioxide
PANAIR
Chemical databaseChemical database
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Urban Areas
Point Source
To add,delete,modify,copy/move and to feed/show data for an added source
EmissionEmission
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Weather dataWeather data
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To set simulation parameters
To select models and start simulation
Additional simulation options
Simulation optionsSimulation options
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Contours
Grid
Velocity Vectors
XY PlotSurface Plot
ResultsResults
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Example : velocity fieldsExample : velocity fields
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Example : altitude contoursExample : altitude contours
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Example : concentration contoursExample : concentration contours
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CASE STUDY – 4
“Urban Air Quality Modeling for CITY OF LYON”
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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
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Example : city of Lyon, FranceExample : city of Lyon, France
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Road network & vehicular count
Example : city of Lyon, FranceExample : city of Lyon, France
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Example : zoom on road networkExample : zoom on road network
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Example : velocity vectorsExample : velocity vectors
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Example : velocity vectorsExample : velocity vectors
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Example : PM10 resultsExample : PM10 results
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Example : SO2 resultsExample : SO2 results
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Example : results in vertical planeExample : results in vertical plane
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Example : isosurface resultsExample : isosurface results
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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
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Comparison with measuresComparison with measures
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LAMExample : city of Greenwich, UKExample : city of Greenwich, UK
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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
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Topographical features and Computational Domain
Example : city of Greenwich, UKExample : city of Greenwich, UK
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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
Example : city of Greenwich, UKExample : city of Greenwich, UK
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Example : city of Greenwich, UKExample : city of Greenwich, UK
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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, ,
Example : city of Greenwich, UKExample : city of Greenwich, UK
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Total Road Network on the Computational Domain Considered
Example : city of Greenwich, UKExample : city of Greenwich, UK
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3-D view of Computational domain with body fitted mesh
Example : city of Greenwich, UKExample : city of Greenwich, UK
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Example : altitude contoursExample : altitude contours
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Example : velocity vectorsExample : velocity vectors
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Example : velocity vectorsExample : velocity vectors
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Example : turbulence contoursExample : turbulence contours
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Example : concentration contoursExample : concentration contours
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Example : zoom on a crossingExample : zoom on a crossing
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Example : zoom on a crossingExample : zoom on a crossing
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Example : zoom on a crossingExample : zoom on a crossing
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Horizontal and vertical mesh
Zoomed view of the mesh
Example : zoom on a crossingExample : zoom on a crossing
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Example : zoom on a crossingExample : zoom on a crossing
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Contours of concentrationsExample : zoom on a crossingExample : zoom on a crossing
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Road impact (street scale)
CONCENTRATIONS OF NOx
Example : zoom on a roadExample : zoom on a road
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FOR MORE INFORMATION….FOR MORE INFORMATION….
http://www.fluidyn.comhttp://www.fluidyn.com
[email protected]@fluidyn.com