Download or read book Considerations on the Effect of Wind tunnel Walls on Oscillating Air Forces for Two dimensional Subsonic Compressible Flow written by Harry L. Runyan and published by . This book was released on 1951 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper treats the effect of wind-tunnel walls on the oscillating two-dimensional air forces in a compressible medium. The walls are simulated by the usual method of placing impages at appropriate distances above and below the wing. An important result shown is that, for certain conditions of wing frequency, tunnel height, and Mach number, the tunnel and wing may form a resonant system so that the forces on the wing are greatly changed from the condition of no tunnel walls.
Download or read book Considerations on the Effect of Wind tunnel Walls on Oscillating Air Forces for Two dimensional Subsonic Compressible Flow written by Harry L. Runyan and published by . This book was released on 1953 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper treats the effect of wind-tunnel walls on the oscillating two-dimensional air forces in a compressible medium. The walls are simulated by the usual method of placing impages at appropriate distances above and below the wing. An important result shown is that, for certain conditions of wing frequency, tunnel height, and Mach number, the tunnel and wing may form a resonant system so that the forces on the wing are greatly changed from the condition of no tunnel walls.
Download or read book A Theoretical and Experimental Study of Wind tunnel wall Effects on Oscillating Air Forces for Two dimensional Subsonic Compressible Flow written by Harry L. Runyan and published by . This book was released on 1953 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theoretical and Experimental Investigation of the Effect of Tunnel Walls on the Forces on an Oscillating Airfoil in Two dimensional Subsonic Compressible Flow written by A. E. Potter and published by . This book was released on 1956 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 1953 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Technical Notes 1947 1953 written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1954 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relationship of Metal Surfaces to Heat aging Properties of Adhesive Bonds written by J. M. Black and published by . This book was released on 1958 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was made to determine the probable causes of deterioration of each of several adhesives in bonds to stainless steel at temperatures from 400 to 550 degrees F. Prellminary studies of aluminum surfaces on which ions of metals used in staLnless steel were introduced showed that iron was probably catalyzing a thermal deterioration of the adhesive. The resistance of FPL-878 adhesive to thermal deterioration at 550 degrees F on steel was improved signiffcantly by treating the steel surface to be bonded with either zinc or cerium naphthenate and firing at 1,200 degrees F. The addition of manganese dioxide to the adhesive also increased its resistance to thermal deterioration. A study of the thermal-aging properties of five different chemical types of adhesives on stainless steel and alumina revealed that a phenol-nitrile rubber adhesive was superior to a phenol-epoxy adhesive on steel, but this order was reversed on alumina. These and other observations indicated probable specific relationships among the chemical structure of the adhesive, the metal adherend, and the resultant thermal stability of bonds after aging at high temperatures.
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 1958 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1961 with total page 1096 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theoretical and Experimental Investigation of the Effect of Tunnel Walls on the Forces on an Oscillating Airfoil in Two dimensional Subsonic Compressible Flow written by Harry L. Runyan and published by . This book was released on 1955 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents a theoretical and experimental investigation of the effect of wind-tunnel walls on the air forces on an oscillating wing in two-dimensional subsonic compressible flow. A method of solving an integral equation which relates the downwash on a wing to the unknown loading is given, and some comparisons are made between the theoretical results and the experimental results. A resonance condition, which was predicted by theory in a previous report (NACA Rep. 1150), is shown experimentally to exist. In addition, application of the analysis is made to a number of examples in order to illustrate the influence of walls due to variations in frequency of oscillation, Mach number, and ratio of tunnel height to wing semichord.
Download or read book Some Effects of Control Profile and Control Trailing edge Angle on the Oscillating Hinge moment and Flutter Characteristics of Flap type Controls at Transonic Speeds written by William C. Moseley and published by . This book was released on 1960 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Determination of the Pressure Distribution on a Rectangular Wing Oscillating in the First Bending Mode for Mach Numbers from 0 24 to 1 30 written by Henry C. Lessing and published by . This book was released on 1960 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Compilation of Research Reports of Physical Research Division Dynamic Loads Division Loads Division 1921 1973 written by Gloria R. Champine and published by . This book was released on 1977 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1961 with total page 1188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Blade section Thickness Ratios on the Aerodynamic Characteristics of Related Full scale Propellers at Mach Numbers Up to 0 65 written by A. J. Eggers and published by . This book was released on 1953 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Method of Calibrating Airspeed Installations on Airplanes at Transonic and Supersonic Speeds by the Use of Accelerometer and Attitude angle Measurements written by Carl Kaplan and published by . This book was released on 1953 with total page 252 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 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
