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Mach disk |
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Mach disk [′mäk ‚disk] (fluid mechanics) A structure visible on a schlieren photograph of a supersonic air jet exhausting from a nozzle at low pressure into higher-pressure air at rest; it is formed by the focusing and strengthening of oblique shock waves emanating from the edges of the nozzle as they approach the jet axis. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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