Using wavenumber spectra measured on a cyclic plate to deduce the convective velocity of a Corcos turbulent boundary loading

Turbulent boundary layers exert a partially coherent pressure loading upon the surfaces over which they pass. Considering such a surface and the wavenumber spectrum associated with turbulent loading together as a system, we seek to determine the convective velocity of turbulence features passing over the surface based on the vibration measured on the side of the surface opposite the flow. We consider in our model a simulated circumferentially connected Corcos-coherent loading applied to a 2-D semi-periodic plate as a proxy for flow over a cylinder. The wave number space transfer function of the plate is used in connection with the spectrum measured on the interior side as the basis of an inverse problem to determine the convective velocity. [SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525.]