ADVANCED CFD ANALYSIS OF 14-BIS AIRCRAFT
Leonardo Ostan Bitencourt, Ramon Morais de Freitas, Grégori Pogorzelski, João Paulo Mesquita Luiz, F. Azevedo · 2005
The present work describes the preliminary results of a CFD-based first analysis of the 14-Bis aircraft aerody- namics. The discretised fluid domain was built around a simplified geometric CAD model of this airplane and the proper boundary conditions were prescribed according to reported historical flight conditions. An implicit, Navier-Stokes solu- tion algorithm, for which both time-marching scheme and spatial discretisation are 2nd order accurate, was used to solve the turbulent flow on unstructured grids. The test cases are concerned with lift and drag prediction, parametric flight speed and longitudinal stability analysis. The preliminary results lead to qualitative agreement with historical reports, although a different computational flight speed has been determined.