Urban energy balance/boundary layer

1
Modelling at Reading

• Urban energy balance/boundary layer
• Urban canopy modelling
• LES/DNS boundary layer over cubes

DAPPLE Science Meeting Tuesday 30th November
2004, Imperial College London.
2
Urban boundary layer

• Vertical structure of boundary layer
• Thermodynamics dynamics
• Upstream conditioning

DAPPLE Science Meeting Tuesday 30th November
2004, Imperial College London.
3
Canopy model

• Mixing and transport over neighbourhood scale
• Captures variation on neighbourhood scale
• Upstream conditioning

DAPPLE Science Meeting Tuesday 30th November
2004, Imperial College London.
4
LES/DNS modelling

• Resolve all relevant scales of turbulence
• Surface with regular arrays of cubes
• Test cases compared with measurements
• Understand intermittency

DAPPLE Science Meeting Tuesday 30th November
2004, Imperial College London.
5
LES/DNS modelling
Intermittency
Snapshot during quiescent phase
Snapshot during disruptive phase
DAPPLE Science Meeting Tuesday 30th November
2004, Imperial College London.