抄録
Recently we have enjoyed the sport "Ultimate" using flying disk in the world. We play Ultimate with seven people per team. The flying disk used in this competition isn't made in Japan. So, it is expected to develop the inexpensive and highly efficient flying disk of Ultimate. In this research, I understood the aerodynamic properties of flying disk by fluid forces measurement and Stereo-PIV measurement, CFD analysis. Also, I verified the appropriateness of CFD analysis by comparing fluid coefficients of experiment with that of CFD analysis.
