Users Guide for the National Transonic Facility Research Data System


Book Description

The National Transonic Facility is a complex cryogenic wind tunnel facility. This report briefly describes the facility, the data systems, and the instrumentation used to acquire research data. The computational methods and equations are discussed in detail and many references are listed for those who need additional technical information. This report is intended to be a user's guide, not a programmer's guide; therefore, the data reduction code itself is not documented. The purpose of this report is to assist personnel involved in conducting a test in the National Transonic Facility. Foster, Jean M. and Adcock, Jerry B. Langley Research Center...







Reynolds Number Effects on the Performance of Lateral Control Devices


Book Description

The influence of Reynolds number on the performance of outboard spoilers and ailerons was investigated on a generic subsonic transport configuration in the National Transonic facility over a chord Reynolds number range from 3x100000 to 30 x1000000 and a Mach number range from 0.50 to 0.94. Spoiler deflection angles of 0°, 10°, 15° and 20° and aileron deflection angles of -10°, 0° and 10° were tested. Aeroelastic effects were minimized by testing at constant normalized dynamic presuure conditions over intermediate Reynolds number ranges.