The Kamm tail wing (cut-off wing) is a special wing shape with a truncated rear end, designed to reduce air resistance in cars and airplanes. This study investigates the flow characteristics around a cut-off wing using particle image velocimetry (PIV) in a wind tunnel. NACA0018 wing was used, and the Reynolds stress, time series data and Probablly density function was measured. Results showed that different phenomena occur between cut-off wings and uncut wings.
Tsukamotomo et al. (Wed,) studied this question.