Advances in Laminar Turbulent Transition Modelling (Les avancees dans la modelisation de la transition laminaire turbulente)
RTO educational notes
NATO RESEARCH AND TECHNOLOGY ORGANIZATION NEUILLY-SUR-SEINE (FRANCE)
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Accurate modeling of the laminar-turbulent transition process remains a fundamental issue for the detailed description of the flow around wings, aircraft bodies and control surfaces, as well as for prediction of air vehicles drag, control surfaces effectiveness, and aerodynamic noise generation. AGARDFDP Lecture Series have been held at the VKI on flow stability and transition in 1984 and 1993 The purpose of this RTO-AVTVKI Lecture Series proceedings is to revisit the subject in view of the latest advances made in these last fourteen years and their potential on aircraft design, specially taking into account the increased capabilities in numerical simulations and in nonintrusive optical measurement techniques, allowing detailed use of DNS data or of experimental data to understand more deeply the turbulent transition mechanisms, as a necessary prerequisite for a more accurate modeling. The covered topics include a broad view of stability theory and different transition phenomena and scenarios. Subjects include receptivity of boundary layer to disturbances, by-pass mechanisms which anticipate transition, growth of 3D instabilities and their breakdown mechanisms, progress in parabolized Navier Stokes methods, and transition prediction and control.
- Operations Research
- Fluid Mechanics