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  Partner: UNT Libraries Government Documents Department
 Decade: 1950-1959
 Serial/Series Title: NACA Technical Notes
 Collection: National Advisory Committee for Aeronautics Collection
Two-Dimensional Subsonic Compressible Flows Past Arbitrary Bodies by the Variational Method

Two-Dimensional Subsonic Compressible Flows Past Arbitrary Bodies by the Variational Method

Date: March 1951
Creator: Wang, Chi-Teh
Description: Instead of solving the nonlinear differential equation which governs the compressible flow, an approximate method of solution by means of the variational method is used. The general problem of steady irrotational flow past an arbitrary body is formulated. Two examples were carried out, namely, the flow past a circular cylinder and the flow past a thin curved surface. The variational method yields results of velocity and pressure distributions which compare excellently with those found by existing methods. These results indicate that the variational method will yield good approximate solution for flow past both thick and thin bodies at both high and low Mach numbers.
Contributing Partner: UNT Libraries Government Documents Department
Tables for the Computation of Wave Drag of Arrow Wings of Arbitrary Airfoil Section

Tables for the Computation of Wave Drag of Arrow Wings of Arbitrary Airfoil Section

Date: June 1954
Creator: Grant, Fredrick C.
Description: Tables and computing instructions for the rapid evaluation of the wave drag of delta wings and of arrow wings having a ration of the tangent of the trailing-edge sweep angle to the tangent of the leading-edge sweep angle in the range from -1.0 to 0.8. The tables cover a range of both subsonic and supersonic leading edges.
Contributing Partner: UNT Libraries Government Documents Department
Summary of 65-Series Compressor-Blade Low-Speed Cascade Data by Use of the Carpet-Plotting Technique

Summary of 65-Series Compressor-Blade Low-Speed Cascade Data by Use of the Carpet-Plotting Technique

Date: February 1957
Creator: Felix, A. Richard
Description: Carpet plots included permit the selection of the blade camber and the design angle of attack required to fulfill a design vector diagram. Other carpet plots provide means for the prediction of off-design turning angles.
Contributing Partner: UNT Libraries Government Documents Department
Reciprocity relations in aerodynamics

Reciprocity relations in aerodynamics

Date: May 1, 1952
Creator: Spreiter, John R & Heaslet, Max A
Description: None
Contributing Partner: UNT Libraries Government Documents Department
A low-speed experimental investigation of the effect of a sandpaper type of roughness on boundary-layer transition

A low-speed experimental investigation of the effect of a sandpaper type of roughness on boundary-layer transition

Date: January 1, 1958
Creator: Horton, E. A. & Vondoenhoff, A. E.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Application of a high-temperature static strain gage to the measurement of thermal stresses in a turbine stator vane

Application of a high-temperature static strain gage to the measurement of thermal stresses in a turbine stator vane

Date: March 1, 1958
Creator: Kemp, R H; Morse, C R & Hirschberg, M H
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Abnormal grain growth in M-252 and S-816 alloys

Abnormal grain growth in M-252 and S-816 alloys

Date: November 1, 1957
Creator: Decker, R F; Rush, A I; Dano, A G & Freeman, J W
Description: An experimental investigation was carried out on air- and vacuum-melted M-252 and S-816 alloys to find conditions of heating and hot-working which resulted in abnormal grain growth. The experiments were mainly limited to normal conditions of heating for hot-working and heat treatment and normal temperatures of solution treatment were used to allow grain growth after susceptibility to abnormal grain growth was developed by various experimental conditions. Results indicated that small reductions of essentially strain-free metal were the basic cause of such grain growth.
Contributing Partner: UNT Libraries Government Documents Department
Effect of prior air force over temperature operation on life of J47 buckets evaluated in a sea-level cyclic engine test

Effect of prior air force over temperature operation on life of J47 buckets evaluated in a sea-level cyclic engine test

Date: April 1, 1958
Creator: Signorelli, Robert A; Johnston, James R & Garrett, Floyd B
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Some observations relating to recovery of internal friction during fatigue of aluminum

Some observations relating to recovery of internal friction during fatigue of aluminum

Date: September 1, 1958
Creator: Valluri, S R
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Method for determining the need to rework or replace compressor rotor blades damaged by foreign objects

Method for determining the need to rework or replace compressor rotor blades damaged by foreign objects

Date: September 1, 1958
Creator: Kaufman, Albert
Description: None
Contributing Partner: UNT Libraries Government Documents Department
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