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Dispersion of Air Pollution and Penetration into the Local Environment

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Presentation on theme: "Dispersion of Air Pollution and Penetration into the Local Environment"— Presentation transcript:

1 Dispersion of Air Pollution and Penetration into the Local Environment Alan Robins Hong Chang Phil Hancock

2 Wind Tunnel Activities
Field study simulations Field site modelling sensitivity studies Generic studies Wind & turbulence field mapping Dispersion measurements for point & line sources Flux & fluctuation measurements Data set generation for model evaluation

3 Preparatory Work - I Boundary layer simulation - devices and scale
at 1:200 - street-side buildings typically mm tall Surface roughness? Coarse and detailed models Level of detail? 5mm  1m 2mm  0.4m

4 Preparatory Work - II Model construction maps
plans, 3 levels of detail Needed for computational and wind tunnel studies common format suppliers?

5 Field Site

6

7 Infoterra Data Co-ordinates of roof corners, plus maximum spot height
500m diameter

8 Infoterra Data with Overlay
Interpretation of digital data - by eye and time consuming

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