Study of Experimental Technique of Oil Flow with Emphasis on Quantitative Determination of the Flow Position Parameters on the Surface

摘要

This paper discusses the reliability of the flow pattern obtained with the surface oil flow technique in detail. It successfully introduces a mathematical method to determine the 3-D coordinates of a surface point based on a single photograph. The flow separation positions of the classical plate and blunt cone model were calculated. The results indicate that in most cases the surface oil flow technique can be applied not only as a qualitative but also a quantitative experimental technique.