後流中における高層建物の動的挙動(その2)

Abstract

A series of wind tunnel experiments were continuously performed to investigate theinteraction effects between neighboring tall buildings with different sizes in a high turbulentboundary layer over urban area comparing with the previous results in a low turbulent flowover open contry terrain.The along and cross wind responses of the downtsream building under an interferingupstream building in a high turbulent flow were not found to be enlarged compared to thoseof the isolated building. This is because the vortices produced by an upstream building werenot formed clearly and consequently the velocity fluctuation and the wake deformation, I.E., the switching in a wake region were decreased. The buffeting factor that is the responseratio of the down stream building to the isolated building and the influenced area formedby an upstream building were reduced with an increasing of turbulence intensity.