A laboratory investigation of the structure of tornado-like vortices through measurement of surface pressure

The goal of this research has been to explore the structure of tornado-like vortices by making measurements of static surface pressure. Instantaneous surface pressure profiles were obtained for five different swirl ratios. Comparisons are made between those surface pressure profiles obtained in this research and those previously obtained in similar research experiments. Estimates of the radius of the pressure core are also made and compared with values previously obtained.