A Wiener-Laguerre Model of VIV Forces Given Recent Cylinder Velocities

Figure 8

Statistics of the distance between vectors of Laguerre coefficients (“𝜏 distance”, black) and vectors of Laguerre coefficients and forces (“𝜏-f distance”, red). the four red curves, from left to right correspond to an added random noise to the force with standard deviation 0, 1×10⁷, 2×10⁷, and 10×10⁷ [N/m].