Numerical simulation of the interaction of wingtip vortices and engine jets in the near field
The near wake of a rectangular wing/engine configuration is investigated using numerical simulations. The analysis focuses on the interaction of the engine jet and the wingtip vortex in the near wake. Numerical issues such as discretizations, acceleration techniques and boundary conditions are discussed in detail. A new one-equation turbulence model is derived, which gives more accurate results than other one-equation turbulence models especially for free shear and vortical flows that are essential in the wake flow problem. Several fundamental flows are simulated numerically and the findings are compared with experimental data to validate the newly developed methods and to ensure the general quality of the numerical results. The thesis analyzes the interaction between the wingtip vortex and the engine jet in the near wake. Physical aspects of the influence of the engine jet on the formation and development of the wingtip vortex at varying thrust and engine positions are documented and discussed on the basis of qualitative and quantitative analyses of the wake flow.
info:eu-repo/classification/ddc/620, Ingenieurwissenschaften, numerische Simulation, Wirbel, Turbulenz, Nacahlauf
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