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 Decade: 1940-1949
 Year: 1947
 Collection: National Advisory Committee for Aeronautics Collection
Application of the analogy between water flow with a free surface and two-dimensional compressible gas flow

Application of the analogy between water flow with a free surface and two-dimensional compressible gas flow

Date: January 1, 1947
Creator: Orlin, W James; Lindner, Norman J & Butterly, Jack G
Description: The theory of the hydraulic analogy -- that is, the analogy between water flow with a free surface and two-dimensional compressible gas flow -- and the limitations and conditions of the analogy are discussed. A test was run using the hydraulic analogy as applied to the flow about circular cylinders of various diameters at subsonic velocities extending into the supercritical range. The apparatus and techniques used in this application are described and criticized. Reasonably satisfactory agreement of pressure distributions and flow fields existed between water and air flow about corresponding bodies. This agreement indicated the possibility of extending experimental compressibility research by new methods.
Contributing Partner: UNT Libraries Government Documents Department
Application of the analogy between water flow with a free surface and two-dimensional compressible gas flow

Application of the analogy between water flow with a free surface and two-dimensional compressible gas flow

Date: February 1, 1947
Creator: Orlin, W James; Lindner, Norman J & Bitterly, Jack G
Description: The theory of hydraulic analogy, that is, the analogy between water flow with a free surface and two-dimensional compressible gas flow and the limitations and conditions of the analogy are discussed. A test run was made using the hydraulic analogy as applied to the flow about circular cylinders at various diameters at subsonic velocities extending to the super critical range. The apparatus and techniques used in this application are described and criticized. Reasonably satisfactory agreement of pressure distributions and flow fields existed between water and airflow about corresponding bodies. This agreement indicated the possibility of extending experimental compressibility research by new methods.
Contributing Partner: UNT Libraries Government Documents Department
Appreciation and determination of the hydrodynamic qualities of seaplanes

Appreciation and determination of the hydrodynamic qualities of seaplanes

Date: May 1, 1947
Creator: Parkinson, John B
Description: None
Contributing Partner: UNT Libraries Government Documents Department
An approximate method for calculating the effect of surface roughness on the drag of an airplane

An approximate method for calculating the effect of surface roughness on the drag of an airplane

Date: July 23, 1947
Creator: Hall, Charles F & Fitzgerald, Fred F
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Axial-flow fan and compressor blade design data on 52.5 degrees stagger and further verification of cascade data by rotor tests

Axial-flow fan and compressor blade design data on 52.5 degrees stagger and further verification of cascade data by rotor tests

Date: April 1, 1947
Creator: Bogdonoff, Seymour M & Hess, Eugene E
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Bearing strength of some sand-cast magnesium alloys

Bearing strength of some sand-cast magnesium alloys

Date: February 1, 1947
Creator: Moore, R L
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Bending stresses due to torsion in a tapered box beam

Bending stresses due to torsion in a tapered box beam

Date: May 1, 1947
Creator: Kruszewski, Edwin T
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Boundary-induced upwash for yawed and swept-back wings in closed circular wind tunnels

Boundary-induced upwash for yawed and swept-back wings in closed circular wind tunnels

Date: May 1, 1947
Creator: Eisenstadt, Bertram J
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Boundary-layer momentum equations for three-dimensional flow

Boundary-layer momentum equations for three-dimensional flow

Date: October 1, 1947
Creator: Tetervin, Neal
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Buckling stresses of simply supported rectangular flat plates in shear

Buckling stresses of simply supported rectangular flat plates in shear

Date: March 1, 1947
Creator: Stein, Manuel & Neff, John
Description: None
Contributing Partner: UNT Libraries Government Documents Department