Investigations on reductions of friction on wings, in particular by means of boundary layer suction

Investigations on reductions of friction on wings, in particular by means of boundary layer suction

Date: August 1, 1947
Creator: Pfenninger, W.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
On the design of airfoils in which the transition of the boundary layer is delayed

On the design of airfoils in which the transition of the boundary layer is delayed

Date: October 1, 1952
Creator: Tani, I.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Investigations relating to the extension of laminar flow by means of boundary-layer suction through slots

Investigations relating to the extension of laminar flow by means of boundary-layer suction through slots

Date: October 1, 1949
Creator: Loftin, L. K., Jr.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
AVA monographs.  B:  Boundary layer

AVA monographs. B: Boundary layer

Date: April 1, 1948
Creator: Holstein, H.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Pressure Distribution on Joukowski Wings

Pressure Distribution on Joukowski Wings

Date: December 1, 1979
Creator: Blumenthal, O.
Description: The hydrodynamics and mathematical models as applied to the potential flow about a Joukowski wing are presented.
Contributing Partner: UNT Libraries Government Documents Department
Elements of the Wing Section Theory and of the Wing Theory

Elements of the Wing Section Theory and of the Wing Theory

Date: December 1, 1979
Creator: Munk, Max M.
Description: Results are presented of the theory of wings and of wing sections which are of immediate practical value. They are proven and demonstrated by the use of the simple conceptions of kinetic energy and momentum only.
Contributing Partner: UNT Libraries Government Documents Department
Flow and Force Equations for a Body Revolving in a Fluid

Flow and Force Equations for a Body Revolving in a Fluid

Date: December 1, 1979
Creator: Zahm, A. F.
Description: A general method for finding the steady flow velocity relative to a body in plane curvilinear motion, whence the pressure is found by Bernoulli's energy principle is described. Integration of the pressure supplies basic formulas for the zonal forces and moments on the revolving body. The application of the steady flow method for calculating the velocity and pressure at all points of the flow inside and outside an ellipsoid and some of its limiting forms is presented and graphs those quantities for the latter forms. In some useful cases experimental pressures are plotted for comparison with theoretical. The pressure, and thence the zonal force and moment, on hulls in plane curvilinear flight are calculated. General equations for the resultant fluid forces and moments on trisymmetrical bodies moving through a perfect fluid are derived. Formulas for potential coefficients and inertia coefficients for an ellipsoid and its limiting forms are presented.
Contributing Partner: UNT Libraries Government Documents Department
The Inertia Coefficients of an Airship in a Frictionless Fluid

The Inertia Coefficients of an Airship in a Frictionless Fluid

Date: December 1, 1979
Creator: Bateman, H.
Description: The apparent inertia of an airship hull is examined. The exact solution of the aerodynamical problem is studied for hulls of various shapes with special attention given to the case of an ellipsoidal hull. So that the results for the ellipsoidal hull may be readily adapted to other cases, they are expressed in terms of the area and perimeter of the largest cross section perpendicular to the direction of motion by means of a formula involving a coefficient kappa which varies only slowly when the shape of the hull is changed, being 0.637 for a circular or elliptic disk, 0.5 for a sphere, and about 0.25 for a spheroid of fineness ratio. The case of rotation of an airship hull is investigated and a coefficient is defined with the same advantages as the corresponding coefficient for rectilinear motion.
Contributing Partner: UNT Libraries Government Documents Department
The Aerodynamic Forces on Airship Hulls

The Aerodynamic Forces on Airship Hulls

Date: December 1, 1979
Creator: Munk, M. M.
Description: The new method for making computations in connection with the study of rigid airships, which was used in the investigation of Navy's ZR-1 by the special subcommittee of the National Advisory Committee for Aeronautics appointed for this purpose is presented. The general theory of the air forces on airship hulls of the type mentioned is described and an attempt was made to develop the results from the very fundamentals of mechanics.
Contributing Partner: UNT Libraries Government Documents Department
A method for calculating the lift and center of pressure of wing-body-tail combinations at subsonic, transonic, and supersonic speeds

A method for calculating the lift and center of pressure of wing-body-tail combinations at subsonic, transonic, and supersonic speeds

Date: November 12, 1953
Creator: Nielsen, Jack Norman
Description: None
Contributing Partner: UNT Libraries Government Documents Department
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