Abstract
The generative mechanism of tornado, it needs surrounding phenomenon such as large-scaled instability and convective flow field, meso-cyclone (upward and rotational flow), down draft, gust front, wind shear and surrounding temperature field. According to the previous studies about modeling of tornado, tornado simulators or meteorological simulation models were used. However, tornado simulators only consider the meso-cyclone flow and meteorological models focus on more large scale area than tornados; they are difficult to present the actual flow pattern of tornado. In this study, we focused on the simulation area below the thundercloud, mount those actual phenomena and above surrounding conditions to this model, and performed more idealized simulation.
