  Preliminary aeroacoustic investigations in competitive industries require
rapid numerical simulation techniques to gain initial insight into the flow and
acoustic field. Although there are capabilities to resolve virtually all
turbulence length scales, these techniques are often impractical in early
stages of component development. Therefore, the flow field is typically
assessed by a Reynolds-averaged Navier Stokes Simulation. Building upon the
results of that flow simulation, a stochastic approach to reconstruct the
turbulent velocity fluctuations. In conjunction with a hybrid aeroacoustic
workflow, this approach is useful in early stage virtual prototyping of
aeroacoustic applications. In this working paper, we present the SNGR algorithm
of CFS-Data, the open-source pre-post-processing part of openCFS, with a focus
on the computation of aeroacoustic sources.
