Schlieren imaging and the real world
Two approaches are presented that allow one to place typically abstract visualizations of compressible flows or other transparent objects with refractive index variations into a realistic and easily accessible context, without the need for a large-scale optical system. Such visualizations are of great value in an educational environment, e.g., for the demonstration of flow physics and concepts to students and/or laypersons. Time-resolved visualizations offer further possibilities to demonstrate graphically the difference between what is seen with the naked eye and what is revealed in a visualization.
compressible flows density-sensitive flow visualization front lighting