Accession Number:

AD0724688

Title:

Environmental Tests of Meteorological Radiosondes Including Dynamic Temperature and Humidity Simulation in a Wind Tunnel

Descriptive Note:

Final rept. 23 Sep-20 Nov 1970

Corporate Author:

ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN

Personal Author(s):

Report Date:

1971-06-01

Pagination or Media Count:

66.0

Abstract:

An experimental investigation of the performance of meteorological radiosondes subjected to controlled variations of humidity and temperature in an environmental wind tunnel is described. Dynamic variations in temperature between -60 and 40C and in relative humidity between 0 and 100 percent, representative of those encountered in atmospheric flight were simulated by injecting liquid nitrogen or steam, respectively, into the wind-tunnel air supply. Tests were conducted at free-stream velocities of 15 and 75 ftsec duplicating the average ascent and descent rates, respectively, of balloon-borne rawinsondes and dropsondes. Free-stream static pressures appropriate to the 300- and 700-mb levels were employed.

Subject Categories:

  • Meteorology
  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE