Download or read book The Calculation of Downwash Behind Supersonic Wings with an Application to Triangular Plan Forms written by Max A. Heaslet and published by . This book was released on 1948 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method is developed, consistent with the assumptions of small perturbation theory, which provides a means of determining for a known load distribution, the downwash behind a wing in supersonic flow. THe analysis is based upon the use of supersonic doublets which are distributed over the plan form and wake of the wing in a manner determined from the wing loading.
Download or read book Downwash Behind Wings at Supersonic Speeds written by Willi Jacobs and published by . This book was released on 1955 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Prediction of Downwash Behind Swept wing Airplanes at Subsonic Speed written by John DeYoung and published by . This book was released on 1955 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: A rapid method for estimating the downwash behind swept-wing airplanes is presented. The basic assumption is that of a flat horizontal sheet of vortices trailing behind the wing. The integrations for the downwash are handled in a manner similar to both Multhopp's and Weissinger's approximate integrations in their span-loading calculations. The principal effects of rolling-up of the wake are treated as corrections to the flat-sheet wake. A simple approximate correction for the effect of the fuselage is applied. The agreement with available experimental data taken behind airplane models is good. Computing forms are included together with charts of pertinent functions, so as to enable simple direct application.
Download or read book The Calculation of Downwash Behind Wings of Arbitrary Plan Form at Supersonic Speeds written by John C. Martin and published by . This book was released on 1950 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications include calculations of the downwash from a pitching rectangular wing and an expression for the local angle of attack necessary to give a specified load distribution.
Download or read book Effect of Downwash on the Estimated Elevator Deflection Required for Trim of the XS 1 Airplane at Supersonic Speeds written by James T. Matthews and published by . This book was released on 1948 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains the results of an investigation to determine from linearized theory, which has recently become available, the downwash at supersonic speeds at the tail of the XS-1 airplane and the effect of the downwash on the elevator deflection required for trim. The results are presented in the form of curves showing the variation of downwash angle with angle of attack and elevator deflection required for trim plotted against Mach number. The calculations indicate that increasing up-elevator deflection is required with increasing Mach number (unstable variation) in level flight between Mach numbers of 1.1 and 1.6. A slight reduction in up-elevator deflection occurs between Mach numbers of 1.6 and 2.0. The stabilizer angle has a similar variation, that is, unstable up to a Mach number of about 1.6 and then becoming slightly stable up to a Mach number of 2.0. The reduction of downwash with increasing Mach number is not the main cause of the increase in up-elevator deflection. The main reasons for this trend are that the pitching-moment coefficients due to the wing camber, the wing lift, and the lift of the stabilizer are all in a nose-down direction, and as the Mach number increases, these pitching-moment coefficients apparently decrease less rapidly than the elevator effectiveness.
Download or read book Charts for Estimating Downwash Behind Rectangular Trapezoidal and Triangular Wings at Supersonic Speeds written by Rudolph C. Haefeli and published by . This book was released on 1950 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: A procedure is indicated to correct for the displacement and the distortion of the trailing vortex sheet. The downwash behind wings with flaps is briefly considered.
Download or read book Method for Calculating Downwash Field Due to Lifting Surfaces at Subsonic and Supersonic Speeds written by Sidney M. Harmon and published by . This book was released on 1951 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method utilizing source singularities is presented for obtaining the linearized downwash field due to lifting wings at subsonic and supersonic speeds. The method is applied to derive generalized formulas for the downwash field due to uniformly loaded swept and rectangular wings at subsonic and supersonic speeds. The utilization of these formulas to obtain the downwash due to wings of arbitrary loading is indicated.
Download or read book The Calculation of Downwash Behind Supersonic Wings with an Application to Triangular Plan Forms written by Maxwell Alfred Heaslet and published by . This book was released on 1948 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method is developed, consistent with the assumptions of small perturbation theory, which provides a means of determining for a known load distribution, the downwash behind a wing in supersonic flow. THe analysis is based upon the use of supersonic doublets which are distributed over the plan form and wake of the wing in a manner determined from the wing loading.
Download or read book The Downwash Distribution Behind a Delta Wing at Supersonic Speeds written by George M. Palmer and published by . This book was released on 1947 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Downwash Distribution Behind a Wing with an Angle of Attack Discontinuity at Supersonic Speeds written by W. E. Gasich and published by . This book was released on 1948 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Analysis of Pressure Studies and Experimental and Theoretical Downwash and Sidewash Behind Five Pointed Tip Wings at Supersonic Speeds written by William B. Boatright and published by . This book was released on 1958 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerodynamic Components of Aircraft at High Speeds written by Allen F. Donovan and published by Princeton University Press. This book was released on 2015-12-08 with total page 863 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume VII of the High Speed Aerodynamics and Jet Propulsion series. It deals with applications to specific components of the complete aircraft. Sections of the volume include: aerodynamics of wings at high speed, aerodynamics of bodies at high speed, interaction problems, propellers at high speed, diffusers and nozzles, and nonsteady wing characteristics. Originally published in 1957. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
Download or read book Tables for Rapid Estimation of Downwash and Sidewash Behind Wings Performing Various Motions at Supersonic Speeds with List of References written by and published by . This book was released on 1959 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Line vortex Theory for Calculation of Supersonic Downwash written by Harold Mirels and published by . This book was released on 1949 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: A bent lifting line and an unbent lifting line (horseshoe-vortex system) are used to compute downwash behind triangular wings. An unbent lifting line is used to compute downwash behind rectangular wings. The results are compared with the exact linearlized solutions.
Download or read book The Calculation of Downwash Behind Supersonic Wings with an Application to Triangular Plan Forms written by Harvard Lomax and published by . This book was released on 1950 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Charts for the Conical Part of the Downwash Field of Swept Wings at Supersonic Speeds written by Jack N. Nielsen and published by . This book was released on 1948 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical expressions have been derived for the downwash throughout the entire induced flow field of lifting triangles of infinite chord with the leading edges either in front of or behind the Mach cone. Downwash charts have been prepared from which the downwash field may be determined for any practical combination of leading-edge sweep angle and flight Mach number. These charts for the lifting triangle of infinite chord are basic to the solutioin for the downwash field of any finite swept wing wherein the contributions of the tips and trailing edges are to be determined by the method of lift cancellation as employed by Lagerstrom and others.
Download or read book An Analysis of Pressure Studies and Experimental and Theoretical Downwash and Sidewash Behind Five Pointed tip Wings at Supersonic Speeds written by William B. Boatright and published by . This book was released on 1954 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:
