Summary
At DLR-Göttingen, theoretical models and numerical methods are being developed in joint efforts with experiments (see CEAS/Dragnet-paper by Abegg et al.). These models and methods cover the transition process from instabilities at the attachment line via the receptivity phase and the regions of linear and nonlinear disturbance growth up to the late nonlinear stages with an instability to secondary disturbances. Considerable progress towards substantiating our objective of a physically reliable transition prediction is reported. The results underline the importance of physical processes near the leading edge on the laminar-turbulent transition downstream, as well as the need for precise knowledge about environmental disturbances from measurements as an input for receptivity analysis. With the initial disturbances available, the downstream disturbance evolution into the final stages of transition can be predicted reliably using the NOLOT/PSE-code, a joint development of DLR-Göttingen and FFA, Sweden. The paper summarizes results achieved in the EC-funded program EUROTRANS [7], in GARTEUR-AG 27 and within the German DFG-program “Transition”.
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References
Balakumar P., Trivedi P.A.: Finite amplitude stability of attachment-line boundary layers, Physics of Fluids, vol. 10 (9), pp. 2228–2237, 1998.
Bertolotti F.P.: On the birth and evolution of disturbances in three-dimensional boundary layers, Proceedings: IUTAM Symposium on Nonlinear Instability and Transition in 3D Boundary Layers, Kluwer Academic Publishers, pp. 247–256, 1996.
Bertolotti F.P.: Response of the Blasius boundary layer to freestream vorticity,Physics of Fluids, vol. 9 (8), pp. 2286–2299, 1997.
Bertolotti F.P.: On the connection between crossflow vortices and attachment-line instabilities,IUTAM Symposium on Laminar-Turbulent Transition, Sedona, AZ, U.S.A., Sept. 1999, to appear with Springer.
Bieler H., Alewelt R., Hein S.: Industrielle Randbedingungen fir den aerodynamischen Entwurf von Grenzschichtabsaugesystemen, DGLR-JT-043, pp. 365–372, 1998.
Bippes H.: Basic experiments on transition in three-dimensional boundary layers dominated by crossflow instability, Progress in Aerospace Sciences, vol. 35, pp. 363–412, 1999.
EUROTRANS, European Program on Transition Prediction, Final Report“, Contract BRPR-CT-95–0069, submitted 1999.
Hein S., Hanifi A., Casalis G.: Nonlinear transition prediction, European Congress on Comp. Meth. in Appl. Sciences and Eng., ECCOMAS 2000, Barcelona, Sept. 2000.
Janke E., Balakumar P.: On the secondary instability of three-dimensional boundary layers, Theoretical and Computational Fluid Dynamics, vol. 14 (3), pp. 167–194, 2000.
Koch W.: Absolute/convective instability analysis of secondary crossflow vortices in a three-dimensional boundary layer, IUTAM Symposium on Laminar-Turbulent Transition, Se-dona, AZ, U.S.A., Sept. 1999, to appear with Springer.
Koch W., Bertolotti F.P., Stolte A., Hein S.: Nonlinear equilibrium solutions in a 3D boundary layer and their secondary instability, JFM vol. 406, pp. 131–174, 2000.
Lin R.S., Malik M.R.: On the stability of attachment-line boundary layers. Part 1: The incompressible Hiemenz flow, JFM, vol. 311, pp. 239–255, 1996.
Malik M.R., Li F., Choudhari M.M., Chang C.-L.: Secondary instability of crossflow vortices and swept wing boundary layer transition, JFM, vol. 399, pp. 85–115, 1999.
Messing R., Kloker M., Wagner S.: DNS of suction through discrete holes in a 3D boundary layer, Notes on Numerical Fluid Mechanics, vol. 72, Vieweg Press, pp. 323–330, 1999.
Spalart P.R.: Direct numerical study of leading-edge contamination,AGARD CP-483, pp. 5.1–5.13, 1988.
Theofilis V.: On linear and nonlinear instability of incompressible swept attachment line boundary layer, JFM, vol. 355, pp. 193–227, 1998.
Theofilis V.: On the verification and extension of the Górtler-Hâmmerlin assumption in 3D incompressible swept attachment line boundary layer flow, DLR-IB-223–97 A44, 1997.
Wassermann P., Kloker M.: DNS of laminar-turbulent transition in a 3D aerodynamics boundary layer flow. In E. Krause, W. Jäger (Eds.): High Performance Computing in Science and Engineering `00. Springer-Verlag, 2000.
White E.B., Saric W.S.: Application of variable leading-edge roughness for transition control on swept wings, AIAA-Paper 2000–0283, 2000.
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Janke, E. et al. (2001). Receptivity Processes and Transition Scenarios for Swept-Wing Flows with HLF Technology. In: Thiede, P. (eds) Aerodynamic Drag Reduction Technologies. Notes on Numerical Fluid Mechanics (NNFM), vol 76. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-45359-8_19
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DOI: https://doi.org/10.1007/978-3-540-45359-8_19
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