Download or read book General Theory of Wave drag Reduction for Combinations Employing Quasi cylindrical Bodies with an Application to Swept wing and Body Combinations written by Jack N. Nielsen and published by . This book was released on 1955 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The wing-body interference theory of NACA TN 2677 applied to symmetrical wings in combination with quasi-cylindrical bodies permits the direct calculation of pressure-distribution changes produced by body shape changes. This theory is used to determine the relative magnitued of the wave-drag reduction produced by changes in cylinder cross-sectional area and that produced changes in cross-sectional shape (without change in area). The body distortion is expressed as a Fourier series, and an integral equation is derived for the body shape for minimum drag for each Fourier component. Thus the wave-drag reductions for the various Fourier harmonics are independent and additive.

Download or read book Technical Note National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1957 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1957 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes the Committee's Technical reports no. 1-1058, reprinted in v. 1-37.

Download or read book Index of NACA Technical Publications written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1956 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Selected Listing of NASA Scientific and Technical Reports for written by and published by . This book was released on 1954 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1956 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report written by and published by . This book was released on 1956 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Abstracts and Reclassification Notice written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1954 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cooperative Investigation of Relationship Between Static and Fatigue Properties of Wrought N 155 Alloy at Elevated Temperatures written by Clyde C. Swett and published by . This book was released on 1956 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NACA Research Memorandum written by and published by . This book was released on 19?? with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experimental Study of Heat Transfer to Small Cylinders in a Subsonic High temperature Gas Stream written by George E. Glawe and published by . This book was released on 1957 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Nusselt-Reynolds number relation for cylindrical thermocouple wires in crossflow was obtained from the experimental determination of time constants. Tests were conducted in exhaust gas over a temperature range of 2000 to 3400 R, a Mach number range of 0.3 to 0.8, and a static-pressure range from 2/3 to 1-1/3 atmospheres, yielding a Reynolds number range of 450 to 3000. The correlation obtained is Nu=(0.428 plus or minus 0.003) times the square root of Re with average deviations of a single observation of 8.5 percent. This relation is the same as one previously reported for room-temperature conditions.

Download or read book NACA Conference on Aircraft Loads Structures and Flutter written by and published by . This book was released on 1957 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Captive Flight Loads and Separation Trajectories of Airborne Stores written by Dale E. Knutsen and published by . This book was released on 1968 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Note written by and published by . This book was released on 1956 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tables of Characteristic Functions for Solving Boundary value Problems of the Wave Equation with Application to Supersonic Interference written by Jack Norman Nielsen and published by . This book was released on 1957 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tables are presented containing 69,000 values of a set of characteristic functions which first arose in problems of supersonic wing-body interference. The tables are useful in problems of supersonic flow involving aerodynamic shapes which are wholly or in part quasi-cylinders of nearly circular cross section. A number of uses are described in the aerodynamics of bodies alone, body-body or shock-body interference, wing-body interference, the vortex-panel interference. Three illustrative examples are worked out in detail. First, the pressure field due to fuselage indentation is calculated and presented in a form independent of Mach number. Secondly, the tables are applied to a problem involving a previously unpublished solution to the Navier-Stokes equations; namely, the boundary-layer profiles of a circular cylinder moved impulsively with a constant axial force in a viscous incompressible fluid. In the final example, the wave drag of corrugated circular cylinders is calculated as a function of the number of corrugations and their wave length. Several nonaerodynamic applications are pointed out in the fields of acoustics and heat conduction. Generally speaking, the tables are applicable to boundary-value problems of the second kind involving the wave equation in three dimensions with approximately circular cylindrical boundaries or involving the unsteady heat-conduction equation in two space dimensions with nearly circular boundaries.

Download or read book Discharge Coefficients for Combustor liner Air entry Holes written by Ralph T. Dittrich and published by . This book was released on 1956 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was conducted to determine the effects of various geometric and flow factors on the discharge coefficients for circular holes having flow parallel to the plane of the hole. The geometric and flow factors considered were hole diameter, wall thickness at the hole, parallel-fllow duct height, boundary-layer thickness, parallel-flow velocity, static-pressure level, and pressure ratio across the test hole.

Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1956 with total page 1640 pages. Available in PDF, EPUB and Kindle. Book excerpt: