LAUSR

This study proposes a method to estimate flow speeds around a submerged vibrating body by measuring the dynamic variables of the body and performing a filtering computation. The proposed method is based on the mechanics of the vortex-induced vibration of a rigid circular cylinder and a nonlinear filtering theory (unscented Kalman filter). Three types of dynamic variables (displacement, acceleration, and hydrodynamic force) are assumed to be measured with sensors. By conducting identical twin numerical experiments, this study examines whether the proposed method accurately estimates the flow speeds with combinations of the three measured variables.