Wind tunnel simulation of TTU flow and building roof pressure

A study of approach wind flow and wind-induced pressure on a 1:50 geometric al scale model of the Texas Tech University test building was performed in a boundary layer wind tunnel at Colorado State University. The model and fu ll-scale flow parameters and pressure coefficients are presented for low-tu rbulence nominal flow. The comparison of the model and prototype building p oint pressure exhibits a better agreement for most of the pressure taps, in cluding the critical corner region, than other reported wind tunnel results . The study shows a significant reduction in the extreme peak pressure at c ritical locations due to low-pass filtering with a relatively high-frequenc y cut-off. This points out to the importance of proper selection of the fre quency range for low-pass filtering and sampling of the pressure signals. ( C) 1998 Elsevier Science Ltd. All rights reserved.