Background Oriented Schlieren Demonstrations
Abstract
In this project report we present the application of a novel schlieren technique for two different tests. The optical method is referred to as "Background Oriented Schlieren" (BOS) in the following. Additionally the differences between BOS and an extension of it, the reference-free stereoscopic arrangement (BOSS in the following), will be discussed. Experimental studies have been carried out to investigate a supersonic jet in an anechoic chamber of NASA Langley and details of the vortex generation next to the blade tips of an Sikorsky UH60 of AFDD at Ames. The background oriented techniques seem to well complete other optical techniques like shadowgraphy or focussing schlieren methods and yield additional quantitative information. Furthermore, they allow - in contrast to laser based techniques - to study the Reynolds-number depending vortex development in fill-scale flight tests more easily.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2000
- Accession Number
- ADA389440
Entities
People
- H. Richard
- M. Raffel