schlieren technique
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Background Oriented Schlieren technique — Background Oriented Schlieren (BOS) is a novel technique for flow visualization of density gradients in fluids using the Gladstone Dale relation between density and refractive index of the fluid.BOS simplifies the visualization process by… … Wikipedia
Schlieren — (from German; singular schliere ) are optical inhomogeneities in transparent material not visible to the human eye. Schlieren physics developed out of the need to produce high quality lenses void of these inhomogeneities. These inhomogeneities… … Wikipedia
Schlieren photography — is a visual process that is used to photograph the flow of fluids of varying density. Invented by the German physicist August Toepler in 1864 to study supersonic motion, it is widely used in aeronautical engineering to photograph the flow of air… … Wikipedia
schlieren photography — noun The technique of photographing a flow of air or other gas, the variations in refractive index according to density being made apparent under a special type of illumination, often used in the testing of models in wind tunnels • • • Main Entry … Useful english dictionary
Efecto Schlieren — Saltar a navegación, búsqueda Para consultar otros usos del término schlieren, véase Schlieren (desambiguación). Fotografía schlieren en color, que muestra las diferencias de densidades del aire caliente sobre la punta de un soldador caliente … Wikipedia Español
Liquid crystal — Schlieren texture of liquid crystal nematic phase Liquid crystals (LCs) are a state of matter that have properties between those of a conventional liquid and those of a solid crystal.[1] For instance, an LC may flow like a liquid, but its… … Wikipedia
Shadowgraph — is an optical method that reveals non uniformities in transparent media like air, water, or glass. It is related to, but simpler than, the schlieren and schlieren photography methods that perform a similar function.In principle, we cannot… … Wikipedia
High speed photography — [ Eadweard Muybridge, first published in 1887.] High Speed Photography is the science of taking pictures of very fast phenomena. In 1948, the Society of Motion Picture and Television Engineers (SMPTE) defined high speed photography as any set of… … Wikipedia
motion-picture technology — Introduction the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… … Universalium
Mach wave — In fluid dynamics, a Mach wave is a pressure wave traveling with the speed of sound caused by a slight change of pressure added to a compressible flow. These weak waves can combine in supersonic flow to become a shock wave if sufficient Mach… … Wikipedia
Fiat Ferroviaria — était une société du groupe italien Fiat S.P.A. spécialisée dans le domaine ferroviaire et tramviaire qui a été vendue au groupe français Alstom en 2000. La division Fiat Ferroviaria est réputée dans le monde pour avoir notamment conçu et réalisé … Wikipédia en Français
