Sightseeing Tower Vent Flow Around The Experimental Study And Numerical Analysis

In recent years, the immemorial technique of natural ventilation has reacquired recognitions because of appearance of various problems of the applications air conditioning application. When design the ventilating system of The Hangzhou Bay Bridge sightseeing tower, the designer pay much attention to natural ventilation and aeration technique, they hope take feasible constitution of air inlet and outlet, shutter and so on to adjust airstream, through opening and close of the shutter and choosing the position of air inlet and outlet, which adapt to the affect of wind speed and wind direction changing at season. It makes use of wind efficaciously and in the person of design thinking of ecological architecture.The keystone of calculation for natural ventilation on wind pressure pressure lies in confirming wind pressure coefficient. This paper put wind pressure coefficient and its influencing factor to research by wind tunnel test and numeric analysis, and give the domain of the area of positive pressure and negative pressure aroused by wind field of the sightseeing tower building, further more, form a credible estimate of wind pressure coefficient in ventilation opening. In addition, using the method of numerical modeling, the paper analyses the testing results of wind tunnel test and compares with the testing results, and that process a comparing calculation and analyse for wind pressure distribution of the sightseeing tower by adopting k—ω model, improved κ—e model, Realizible model and Large Eddy Simulation model and another turbulent current model.