Wind-induced interference effects on long-span spherical shell for coal storage

Wind tunnel tests on two paratactic rigid models of long-span spherical shell for coal storage were carried out to study the wind-induced interference effects. Based on the Reynolds-averaged N-S equations and Reynolds stress equation model (RSM), the numerical simulation of mean wind pressure distribution was performed. The numerical results are found to be in good agreement with the experimental results. On this basis, the wind-induced static force and dynamic interference effects between the two spherical shells were discussed. The results show that the main static interference effect is the obstruction, which reduces the flow energy and improves the flow turbulence. The main dynamic interference effect is the increasing effect, and when the shell is on the downstream side of the interfering building, the dynamic interference effect is bigger.