Overview
ViGYAN's Low Speed Wind Tunnel
For models requiring changes in angle of attack or yaw angle, the model support mechanism allows the model attitude to be varied in the range of -10 to +90 degrees of pitch and -20 to +20 degrees of yaw, accurate to 0.1 degree. It features a closed-loop control system integrated with the data acquisition system for repeatable, efficient conduct of testing operations.
Instrumentation and Control
A robust instrumentation and control-system and a LabVIEW-based data acquisition system provide measurement and reduction of tunnel conditions, balance loads and other analog channels. This system is part of a control room network with workstations for customers to view, plot and process data immediately after each run, as well as allow access to previous runs, tests or customer-supplied comparison data.
Data-reduction procedures, instrumentation and balance wiring/connectors, and data formats are based on those widely used at NASA Langley Research Center (LaRC) to facilitate easy movement of models, balances, and data between ViGYAN and LaRC. Statistical process control procedures are also in place to monitor data quality in the facility; this information is provided to customers as it is available and analyzed.