Dynamic Mesh Deformation with Radial Basis Functions for the Non-Linear Frequency Domain Method

Three-Dimensional Aeroelastic Solutions via the Nonlinear Frequency-Domain Method

“…The FFTV approach has the advantage of being very simple to implement and computationally efficient, but its accuracy is dependent on the number of modes N employed to represent the grid position in time [78]. By opposition, since the RBFV method relies directly on the mathematics of the deformation, the computed mesh velocities are exact.…”

“…The method employed herein for the computation of the mesh velocities was previously developed by the present author and his advisor [78]. First, it is convenient to consider the displacement vector of an arbitrary mesh point, defined in section 4.1.1, as a position vector having its origin on the point in the undeformed grid and its other end on the point in the deformed grid.…”