Accession Number : AD0717727

Title :   Research on Advanced Gasdynamic Test Facilities. Part I. Studies of the Isentropic-Compression Tube as a Means for Producing Hypervelocity Test Flows.

Descriptive Note : Final technical rept. 1 Jul 66-30 Jun 70,

Corporate Author : CORNELL AERONAUTICAL LAB INC BUFFALO N Y AERODYNAMIC RESEARCH DEPT

Personal Author(s) : Stoddard,Frank J.

Report Date : OCT 1970

Pagination or Media Count : 75

Abstract : The report summarizes research conducted on the use of isentropic-compression techniques for producing hypervelocity test flows. The results of experiments in the pilot isentropic-compression tube are reported and compared with theoretical predictions. It is shown that the experimental results are, in general, in agreement with the theoretical performance predictions for both the isentropic-flow and the free-piston shock-tube mode of operation. Theoretical estimates of the performance of a large-scale high-pressure facility are given which indicate that such a facility would be extremely versatile and capable of performance far exceeding that of existing short-duration high-speed test facilities. The report provides a complete documentation of the research conducted including previously unpublished work recently completed. (Author)

Descriptors :   (*HYPERSONIC WIND TUNNELS, DESIGN), (*COMPRESSORS, SHOCK TUBES), PIPES, ENTROPY, THEORY, EXPERIMENTAL DATA, FLIGHT SIMULATORS, REYNOLDS NUMBER, PISTONS, HELIUM, DISSOCIATION

Subject Categories : Test Facilities, Equipment and Methods
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE