Data evaluation of different data streams from a helicopter wind tunnel test

Abstract

A new medium size wind tunnel model was designed, manufactured, and tested in two wind tunnel test campaigns. The model was equipped with sensors in the non-rotating as well as and the rotating domain. Data were collected by two separated data acquisition systems with high sample rate. Both data streams include a time stamp and information of the current rotor azimuth position. Based on this azimuth position the data streams can be synchronized and the influences between rotor and the fuselage can be investigated for different trim conditions. The following paper evaluates the measured data from both data streams