Tests on the afwal 65° Delta wing at NLR: A study of vortex flow development between Mach =0,4 and 4

As part of the US/European Vortex Flow Experiment force and pressure measurements have been carried out in the transonic and supersonic wind tunnels of NLR on a 65° swept delta wing configuration. The larger part of the experimental results concerns a configuration with a sharp and one with a rounded leading edge, both tested over a range of...

Half-model testing in the NLR high speed tunnel HST : its technique and application

An evaluation is presented of the half-model test technique based on a systematic comparison of halfmodel test results with the corresponding full-model data. It is shown that the most important problems with this technique originate from half-model mounting and wall interference effects. At present, these effects can only be determined...