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Old   February 11, 2006, 15:26
Default Sclieren Image.
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Could anyone explain to me what a long time exposure (and short time exposure) schlieren means in the context of an inert flow and most expecially in a combusting premixed flame.

Also, does anyone know how to use Fieldview to create Sclieren images?

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Old   February 12, 2006, 10:12
Default Re: Sclieren Image.
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Schlieren images are obtained by displaying the magnitude of the vector gradient of the density.
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Old   February 12, 2006, 15:26
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Although strictly this is only true for a two-dimensional flow (in 3D the real Schlieren image is an integration through the flow in the viewing direction).

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