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Author : Chuan-Tau Edward Lan
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (31 download)
Download or read book Calculation of Vortex Lift Effect for Cambered Wings by the Suction Analogy written by Chuan-Tau Edward Lan and published by . This book was released on 1981 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Chaun-Pau Edward Lan
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (317 download)
Download or read book Calculation of Vortex Lift Effect for Cambered Wings by the Suction Analogy written by Chaun-Pau Edward Lan and published by . This book was released on 1981 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: An improved version of Woodward's chord plane aerodynamic panel method for subsonic and supersonic flow is developed for cambered wings exhibiting edge separated vortex flow, including those with leading edge vortex flaps. The exact relation between leading edge thrust and suction force in potential flow is derived. Instead of assuming the rotated suction force to be normal to wing surface at the leading edge, new orientation for the rotated suction force is determined through consideration of the momentum principle. The supersonic suction analogy method is improved by using an effective angle of attack defined through a semi-empirical method. Comparisons of predicted results with available data in subsonic and supersonic flow are presented.
Author : Chuan-Tau Edward Lan
Publisher :
ISBN 13 :
Total Pages : 122 pages
Book Rating : 4.:/5 (13 download)
Download or read book VORCAM written by Chuan-Tau Edward Lan and published by . This book was released on 1981 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Edward C. Polhamus
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (31 download)
Download or read book Application of the Leading-edge-suction Analogy of Vortex Lift to the Drag Due to Lift of Sharp-edge Delta Wings written by Edward C. Polhamus and published by . This book was released on 1968 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 138 pages
Book Rating : 4.:/5 (317 download)
Download or read book Calculation of Lateral-directional Stability Derivatives of Wings by a Nonplanar Quasi-vortex-lattice Method written by and published by . This book was released on 1981 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Melvin H. Snyder
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (31 download)
Download or read book Application of the Leading-edge-suction Analogy to Prediction of Longitudinal Load Distribution and Pitching Moments for Sharp-edged Delta Wings written by Melvin H. Snyder and published by . This book was released on 1972 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The leading-edge-suction analogy of Polhamus has been used to develop the longitudinal load distribution of the vortex lift for delta wings. This distribution is shown to be similar in shape to that of the potential-flow longitudinal loading for delta wings having aspect ratios of 2 or less. The totals of the two theoretical distributions for delta wings with an aspect ratio near 1 are in good agreement with the experimentally determined loadings over the angle-of-attack range from 0 to 30 deg. The corresponding predicted pitching moments show slightly more stability than those measured, because of loss of lift near the wing tips.
Author :
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ISBN 13 :
Total Pages : 166 pages
Book Rating : 4.F/5 ( download)
Download or read book NASA Technical Paper written by and published by . This book was released on 1992 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 952 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Chuan-Tau Edward Lan
Publisher :
ISBN 13 :
Total Pages : 332 pages
Book Rating : 4.3/5 (91 download)
Download or read book Calculation of High Angle of Attack Aerodynamics of Fighter Configurations written by Chuan-Tau Edward Lan and published by . This book was released on 1991 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: A computational method for unsteady aerodynamics of fighter configurations at high angles of attack is developed. The leading-edge vortices are represented by free vortex filaments which are adjusted iteratively to satisfy the force-free condition. The small-disturbance, unsteady potential equation is solved in the frequency domain for motions in pitching, plunging, flapping, side movement, rolling, and yawing oscillation in compressible flow. Computed results in rolling moment coefficients due to side acceleration are compared with data for 60-deg and 80-deg delta wings. Lateral-directional characteristics for an F-106b configuration are also compared with data obtained in forced oscillation tests. It is shown that reasonable results can be obtained by the present unsteady flow method, but not by steady flow theory. Calculation of dynamic stall effects on a rectangular wing of aspect ratio 4 is demonstrated by using experimental section data. Although no data for the wing are available, the results appear plausible. Industrial usage of this has produced mixed results. At this time, the use of these methods in a production manner is recommended.
Author :
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (317 download)
Download or read book Effects of Jets, Wakes, and Vortices on Lifting Surfaces written by and published by . This book was released on 1976 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 584 pages
Book Rating : 4.F/5 ( download)
Download or read book NASA Tech Briefs written by and published by . This book was released on 1982 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 444 pages
Book Rating : 4.3/5 (21 download)
Download or read book COSMIC Software Catalog written by and published by . This book was released on 1987 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Chuan-Tau Edward Lan
Publisher :
ISBN 13 :
Total Pages : 264 pages
Book Rating : 4.:/5 (317 download)
Download or read book VORSTAB: A Computer Program for Calculating Lateral-directional Stability Derivatives with Vortex Flow Effect written by Chuan-Tau Edward Lan and published by . This book was released on 1985 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : Elsevier Publishing Company
ISBN 13 :
Total Pages : 574 pages
Book Rating : 4.3/5 (91 download)
Download or read book The Software Catalog written by and published by Elsevier Publishing Company. This book was released on 1985 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 478 pages
Book Rating : 4.3/5 (91 download)
Download or read book NASA Technical Note written by and published by . This book was released on 1973 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Harry W. Carlson
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.:/5 (31 download)
Download or read book Validation of a Pair of Computer Codes for Estimation and Optimization of Subsonic Aerodynamic Performance of Simple Hinged-flap Systems for Thin Swept Wings written by Harry W. Carlson and published by . This book was released on 1988 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 388 pages
Book Rating : 4.:/5 (318 download)
Download or read book Journal of Aircraft written by and published by . This book was released on 1997 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
