Accession Number : AD0660134

Title :   IRREVERSIBLE FLOW IN RESERVOIR AND THROAT SECTIONS OF WIND TUNNELS WITH CONSTRICTED-ARC HEATERS,

Corporate Author : ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AIR FORCE STATION TENN

Personal Author(s) : Potter,J. Leith ; Arney,George D. , Jr. ; Carden,William H. ; Kinslow,Max

Report Date : SEP 1964

Pagination or Media Count : 45

Abstract : Characteristics of flows in reservoir and throat sections of arc-heated wind tunnels are discussed under four main headings: flow uniformity, thermo-chemical equilibrium, heat loss, and flow steadiness. The influence of typical variations in structural design and flow properties is shown by presentation of experimental data and related theoretical analysis. The principal variables were enthalpy, pressure, reservoir size, nozzle throat diameter, mass flux, and, to a lesser extent, gas medium. Quantitative values of these variables, in general, correspond to operating conditions of a continuous-type, arc-heated, low-density, hypersonic wind tunnel. (Author)

Descriptors :   (*WIND TUNNELS, AERODYNAMIC CHARACTERISTICS), (*ARC HEATERS, WIND TUNNELS), (*GAS FLOW, IRREVERSIBLE PROCESSES), WIND TUNNEL NOZZLES, FROZEN EQUILIBRIUM FLOW, THERMOCHEMISTRY, NONEQUILIBRIUM FLOW, NOZZLE GAS FLOW, HEAT TRANSFER, STABILITY, VIBRATION, MOLECULAR PROPERTIES, ENTHALPY, NOZZLE THROATS, HYPERSONIC FLOW, DISSOCIATION

Subject Categories : Aerodynamics
      Test Facilities, Equipment and Methods
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE