engleski

A novel steady RANS model for the computational modeling of the homogeneous atmospheric boundary layer flow over hilly terrain

A new computational model for the simulation of the neutrally- stratified atmospheric boundary layer (ABL) is developed. It is based on the implementation of the wind-source term in the momentum equation of the steady Reynolds-averaged Navier- Stokes (RANS) model. The wind-source term allows for establishing the profiles of the mean velocity, Reynolds shear stress and turbulent kinetic energy for various terrain exposures. The obtained computational results are in good agreement with the available wind-tunnel measurements.

Atmospheric Boundary Layer ; RANS turbulence modelling ; Hilly terrain ; Pressure coefficient distribution ; Speed-up ratio ; Separation and reattachment points

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