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Table 3

Solver settings for the 2D ABL flow.

Turbulent model Standard k–ε model with standard wall functions
Boundary conditions
   Inlet UDF for U, k, ε
   Outlet Pressure-outlet with zero pressure
   Top Symmetry
   Ground ks = 0.2, UDF for Cs
   Ground-pitch and stadium entrances ks = 0.58758, Cs = 0.5
Cell zone conditions
   Fluid: top layer Source term, x-momentum = 0.089 N/m3
Solution methods SIMPLE; second order for pressure, momentum and turbulence transport equations
Convergence criterion None (to control end of calculation)

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