Effect of Support on Wind Flow Field Around Array of Two Inline Buildings

In the present study turbulent wind flow field around inline surface-mounted and supported buildings has been investigated numerically. In order to model turbulence, re-normalization group k‑ε and realizable k‑ε turbulence models are employed. According to the numerical simulations, stream-wise velocity profiles around single surface-mounted and supported buildings are compared with the experimental data. Consequently, the validated model with realizable k‑ε turbulence models is used to simulate flow field around two inline surface-mounted and supported buildings. Results have been reported for two Reynolds numbers (17000, 170000). Approximately, same velocity field was observed for non-supported buildings at two flow Reynolds numbers. Although, for supported buildings small difference is observed in the velocity profile under and above the building. Comparison of results for non-supported and supported buildings shows that behind the supported buildings the near ground reversed flow region was removed and lead to the lower drag force on such building. Moreover, supports increase the reattachment length on the upstream building.