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Application of Numerical Optimization to the Design of Supercritical Airfoils without Drag-Creep
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1977 by SAE International in United States
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Recent applications of numerical optimization to the design of advanced airfoils for transonic aircraft have shown that low-drag sections can be developed for a given design Mach number without an accompanying drag increase at lower Mach numbers. This is achieved by imposing a constraint on the drag coefficient at an off-design Mach number while the drag at the design Mach number is the objective function. Such a procedure doubles the computation time over that for single design-point problems, but the final result is worth the increased cost of computation. The ability to treat such multiple design-point problems by numerical optimization has been enhanced by the development of improved airfoil shape functions. Such functions permit a considerable increase in the range of profiles attainable during the optimization process.
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CitationHicks, R. and Vanderplaats, G., "Application of Numerical Optimization to the Design of Supercritical Airfoils without Drag-Creep," SAE Technical Paper 770440, 1977, https://doi.org/10.4271/770440.
- Bauer F., Garabedian P., and Korn D., “Supercritical Wing Sections.” Lecture Notes in Economics and Mathematical Systems. Vol. 66, Springer-Verlag, 1972.
- Nieuwland G. Y., “Transonic Potential Flow Around a Family of Quasi-Elliptical Aerofoil Sections.” National Aerospace Laboratory, Technical Report T. 172, 1967.
- Arlinger B., “An Exact Method of Two Dimensional Airfoil Design.” Saab TN 67, 1970.
- Steger Joseph L. and Klineberg John J., “A Finite Difference Method for Transonic Airfoil Design.” AIAA Journal, Vol. 11, No. 5, May 1973.
- Hicks Raymond M., Murman Earll M., and Vanderplaats Garret N., “An Assessment of Airfoil Design by Numerical Optimization.” NASA TM X-3092, 1974.
- Hicks Raymond M. and Vanderplaats Garret N., “Application of Numerical Optimization to the Design of Low-Speed Airfoils.” NASA TM X-3213, 1975.
- Hicks Raymond M. and Vanderplaats Garret N., “Design of Low-Speed Airfoils by Numerical Optimization.” SAE Paper 750524, 1975.
- Hicks Raymond M., Vanderplaats Garret N., Murman Earll M., and King Rosa R., “Airfoil Section Drag Reduction at Transonic Speeds by Numerical Optimization.” SAE Paper 760477, April 6-9, 1976.
- Eggleston B., and Jones D. J., “The Design of Lifting Supercritical Airfoils Using Numerical Optimization Methods,” Presented at Canadian Symposium on Fluid Dynamics, University of British Columbia, May 1976.
- Vanderplaats Garret N. and Hicks Raymond M., “Numerical Airfoil Optimization Using a Reduced Number of Design Coordinates.” NASA TM X-73,151, 1976.
- Vanderplaats Garret N., Hicks Raymond M., and Murman Earll M., “Application of Numerical Optimization Techniques to Airfoil Design.” NASA Conference on Aerodynamic Analysis Requiring Advanced Computers, Langley Research Center, Virginia. NASA SP-347, Part II, 1975.
- Vanderplaats Garret N., “CONMIN-A Fortran Program for Constrained Function Minimization.” NASA TM X-62,282, 1973.
- Bauer F., Garabedian P., Korn D., and Jameson A., “Supercritical Wing Sections II.” Lecture Notes in Economics and Mathematical Systems. Vol. 108, Springer-Verlag, 1975.