Tunnel Interference from Pressure Measurements on Control Surfaces

摘要

Interference due to tunnel walls has been evaluated from pressure measurements on control surfaces by a method due to Capelier, Chevallier and Bouniod, using a simple exponential type of decay for extrapolating the pressure coefficients beyond the measurement stations to + or - infinity, respectively. The method has been validated against data presented at an AGARD meeting on Transonic Test Sections at NASA Langley, which discussed the merits of the various methods for evaluating the wall interference from pressure measurements.