CFD simulation of flow around angle of attack and sideslip angle vanes on a BAe Jetstream 3102 - Part 2

Abstract

A previous study analysing the local flow around angle of attack and sideslip angle vanes on a BAe Jetstream 3102 turboprop is extended to study the additional effects of bank angle. A full matrix of CFD simulations is carried out to investigate how the introduction of a bank angle affects vane performance for a range of flight conditions. An updated calibration method to convert the raw vane readings into true values of angle of attack and sideslip, incorporating a correction factor as a function of the bank angle, is presented. The results are shown to be accurate for a wide range of flight configurations. Uncertainty analysis indicates that raw vanes reading errors should be below ±0.1°±0.1° to ensure that total calibration errors are restricted to less than 2%2% for angle of attack and 5%5% for sideslip angle.