Schedule 1 [J091p-10] Study on the effect of upstream prism size on wake galloping of square prism 〇Kyou Tsukumo1, Kazunori Takai1, Toshinori Sato1, Toshihiro Haniu1, Shin-ichi Morita1 (1. 北見工業大学) Keywords:Wake galloping、Square prism、Response characteristics、Tandem and staggered arrangement