Embed Size (px)
DESCRIPTION
Modelling of Complex Urban Systems and Areas of Possible Improvements. Dr Žarko Stevanović Belgrade University Institute of Nuclear Sciences - VINČA zare @ vinca.rs. MODELLING - CONCEPT. Natural Phenomena. Modelling. Quantification - CFD. NATURAL PHENOMENA. - PowerPoint PPT Presentation
Citation preview
Blue Green Dream © 2012. All rights reserved.2013.
Modelling of Complex Urban Systems and Areas of Possible Improvements
Dr Žarko Stevanović
Belgrade University
Institute of Nuclear Sciences - VINČA
Blue Green Dream © 2012. All rights reserved.2013.
MODELLING - CONCEPTMODELLING - CONCEPT
Natural Phenomena
ModellingModelling
Quantification - CFD
Blue Green Dream © 2012. All rights reserved.2013.
NATURAL PHENOMENA
• Fluid Flow (Air Movement, Turbulence, Buoyancy)• Heat Transfer (Conduction, Convection, Radiation)• Mass Transfer (Pollution Dispersion)• Phase Changes (Vaporization, Solidification)• Combustion (Heat and Smoke Realize)• etc.
Blue Green Dream © 2012. All rights reserved.2013.
MODELLING BUILT ENVIRONMENT - SCOPEMODELLING BUILT ENVIRONMENT - SCOPEAdaptations
•Urban design: heat islands and street canyon effects
•Building design and adaptations for protection against temperature, pollution, fire and flood risks
Mitigation
•Urban design, structure and organization to promote low GHG emissions and healthy living
•Energy efficiency / Low carbon design of buildings: impact on indoor environments
Blue Green Dream © 2012. All rights reserved.2013.
Heat Islands EffectsHeat Islands EffectsR
ura
l A
reas
Urb
an A
reas
Blue Green Dream © 2012. All rights reserved.2013.
Street Canyon EffectsStreet Canyon Effects
Isolated Roughness FlowIsolated Roughness Flow
Wake Interface FlowWake Interface Flow Skimming FlowSkimming Flow
Blue Green Dream © 2012. All rights reserved.2013.
Urban Pollution EffectsUrban Pollution Effects
Point source pollution :- Chimney
Line source pollution: – Urban Traffic
Blue Green Dream © 2012. All rights reserved.2013.
Experimental:
•Wind – tunnel investigation
Modelling:
•Computational Fluid Dynamics ( CFD )
MODELLING BUILT ENVIRONMENT - METHODOLOGIESMODELLING BUILT ENVIRONMENT - METHODOLOGIES
Blue Green Dream © 2012. All rights reserved.2013.
Experimental – Wind TunnelExperimental – Wind Tunnel
Blue Green Dream © 2012. All rights reserved.2013.
CFD –CFD – E E X A M P L E SX A M P L E S
Blue Green Dream © 2012. All rights reserved.2013.
Heat Islands EffectsHeat Islands EffectsUrban Model:•Buildings•Streets•Greenery•Water Surfaces
Ž. Stevanović, 2013
Surface – FasadeTemperatures
Blue Green Dream © 2012. All rights reserved.2013.
Street Canyon EffectsStreet Canyon EffectsUrban Model of Glasgow City Center
Surface – Fasade Air Velocity
Hor
izon
tal c
om
pone
nts
of v
eloc
ity v
ecto
r a
t th
e G
eorg
e S
quar
e
D. Mumović and Ž. Stevanović, 2002
Blue Green Dream © 2012. All rights reserved.2013.
Urban PollutionUrban Pollution Effects EffectsUrban Model of Copenhagen City Center
Surface – Fasade NOx Distribution
New
bui
ldin
g fa
sade
NO
x di
strib
utio
n –
Na
tura
l ven
tila
tion
stud
y
Ž. Stevanović, 2008
Blue Green Dream © 2012. All rights reserved.2013.
Outdoor / Indoor ImpactOutdoor / Indoor Impact
Ž. Stevanović, 2008
Fasade Design DetailesNatural Ventilation Study
Velocity Vectors andAir Stream Lines
Blue Green Dream © 2012. All rights reserved.2013.
Indoor Thermal ComfortIndoor Thermal Comfort
Open Office Model
Predicted Mean VoteDistribution
Ž. Stevanović, 2012
Blue Green Dream © 2012. All rights reserved.2013.
Indoor Air Indoor Air QualityQuality
Theatre “Terazije” - Belgrade Model
Iso-surface of CO2 concentration
M. Kavgić and Ž. Stevanović, 2007
Blue Green Dream © 2012. All rights reserved.2013.
Indoor Risk Fire AssessmentIndoor Risk Fire Assessment
Visualization of 100 Visualization of 100 ooC C temperature isotemperature iso--surface, surface, spreading during the firespreading during the fire
3D Geometry of Belgrade AirportTerminal 2
Ž. Stevanović, 2006
Blue Green Dream © 2012. All rights reserved.2013.
Contact details
Dr Žarko Stevanović
www.vinca.rs
[email protected]+381 63 8468 799
