A concept is presented for the numerical simulation of trimmed aircraft flight in steady-state conditions under the influence of working engines. An important ingredient in this process is the numerical engine boundary treatment. The engine boundary fluxes were computed following the flux-difference scheme of Roe in combination with an engine-specific definition of the fluid state. An elementary prototype configuration was considered first to verify the steady-state trim procedure in 2D. The desired flight equilibrium was found in a few Newton iterations controlling the engine, the pitch angle and the angle of the horizontal tail plane. Subsequently, a 3D configuration of a generic transport aircraft was considered in cruise conditions. As a first step towards the computation of a steady-state flight equilibrium, the CFD simulation has been performed for an initial configuration with working engines.
CITATION STYLE
Stück, A., & Heinrich, R. (2016). Towards the simulation of trimmed flight conditions with active engines. In Notes on Numerical Fluid Mechanics and Multidisciplinary Design (Vol. 132, pp. 597–606). Springer Verlag. https://doi.org/10.1007/978-3-319-27279-5_52
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