Flow field show meter (schlieren apparatus) can be used to investigate lit medium density and temperature distribution in the medium the refractive index change of general optical instrument.To learn the requiredDiscussion of air density change qualitative material to supply by testing a really active images for the purpose.Such as discussion stratified flow, supersonic flow, shock, heat transfer and mass transfer, and natural and forced, burning, the flame, demolition, plasma and some chemical reactions, etcThe subject of the change in the flow field density science research category.Is now running of aeronautics and astronautics preliminary test of the main test from one of the equipment.
