What has happened? The phenomenon is related to the differences between laminar and turbulent boundary layer. The boundary layer and its interaction with the local pressure gradient plays a major role ...

The tunnel operating conditions were chosen to give a Reynolds number range so that at the lowest Reynolds number the flow will be laminar (even on the tunnel walls), and at the highest Reynolds ...

Abstract: This study investigates the effect of flow velocity and building surface temperature ... models : comparison with multi-layer and slab models", Boundary Layer Meteorology -101,329-358.