Ventilation fan,Schlieren image. Cook next to a fryer with a ventilation fan (top) extracting the cooking fumes. The hot fumes have been revealed by Schlieren photography,a way of visualizing density changes in transparent materials. The density change (here caused by heat and convection turbulence) causes light passing through the air to bend (refract). The imaging method alters the colour or brightness of this refracted light. The method is being used to ensure efficient design to conserve heat energy. Photographed by the world's only (as of 2003) full-scale Schlieren system,developed by Gary Settles,professor of mechanical engineering at Pennsylvania State University,USA | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Settles, Dr. Gary |
Bildgröße: | 3488 px × 4406 px |
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Eigentums-Rechte: | nicht erforderlich |
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