Numerical simulation of wind load and wind field characteristics of special-shaped open roof
Taking the special-shaped open roof of a hospital as the study object,the distribution of the flow field around it and the distribution of the mean wind load are analyzed.By adopting Realizable k-ε turbulence mod-el,the corresponding simplified model is established according to the main characteristics of the roof cover,and simulation analysis is carried out.The results show that there is a special positional relationship between the shaped open roof cover and the main building,resulting in a vortex easily formed between the roof cover and the rear building very easily.When the front side of the roof is directly facing the wind direction,the airflow will be affected by the blocking effect,which makes the wind load on the windward side of the roof relatively small,and at this time,the coefficient of body shape is about 0.1.When the side of the roof is facing the wind direction,the airflow is relatively unobstructed and the roof surface is mainly subject to wind suction.The re-sults of the study can provide a reference for the early design of building programs.
special-shaped open roofshape coefficientnumerical simulationwind load
万方数据
维普
