This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Application of Linear Stability Theory in Laminar Flow Design
Annotation ability available
Sector:
Language:
English
Abstract
The linear stability of fully three-dimensional supersonic boundary layers formed over swept-wing configurations is investigated using a modified version of the linear stability code COSAL. Configurations studied include a highly swept leading-edge model to be utilized for transition studies in the LARC Low-disturbance Mach 3.5 Pilot Tunnel. The model is a representation of the leading edge of a laminar flow control wing for the F-16XL aircraft. In addition, the region over a laminar flow control glove fitted on the mid-portion of an F-16XL wing was studied. For each configuration, estimates of the location of the onset of transition were computed using linear stability theory and the eN method. The effectiveness of suction in stabilizing the boundary layer over the F-16XL wing glove was also investigated.
Authors
Citation
Iyer, V. and Spall, R., "Application of Linear Stability Theory in Laminar Flow Design," SAE Technical Paper 912116, 1991, https://doi.org/10.4271/912116.Also In
References
- Harris, R.V. Hefner, J.N. “NASA laminar flow program-past, present and future,” NASA CP 2487 1987 1 25
- Malik, M.R. “Stability Theory for Laminar Flow Control Design,” Progress in Astronautics and Aeronautics 123 1990
- Malik, M.R. “COSAL-A Black Box Compressible Stability Code for Transition Prediction in Three-Dimensional Boundary-Layers,” NASA CR-1659925 May 1982
- Dagenhart, J.R. Private Communications
- Iyer, V. “Assessment of Meanflow Solutions for Instability Analysis of Transitioning Flows,” AIAA-91-1638 June 1991
- Thomas, J. Taylor, S. Anderson, W. “Navier-Stokes Computation of Vortical Flows Over Low Aspect Ratio Wings,” AIAA-87-0207 Jan. 1987
- Iyer, V. “Computation of three-dimensional compressible boundary layers to fourth-order accuracy on wings and fuselages,” NASA CR 4269 Jan. 1990
- Woan, C.J. Gingrich, P.B. George, M.W. “CFD Validation f a Supersonic Laminar Flow Cotrol Concept” AIAA 91-0188
- Malik, M.R. Orszag, S.A. “Efficient Computation of the Stability of Three-Dimensional Boundary-Layers,” AIAA 81-1277 1981
- Gaster, M. “A Note on the Relation Between Temporally Increasing and Spatially Increasing Disturbances in Hydrodynamic Stability,” J. Fluid Mech. 14 1962 222 224