Sclieren Image.

February 11, 2006, 14:26

Hello,

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?

Thanks.

February 12, 2006, 09:12

Schlieren images are obtained by displaying the magnitude of the vector gradient of the density.

February 12, 2006, 14:26

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).

February 11, 2006, 14:26	Sclieren Image.	#1
MM? Guest Posts: n/a	Hello, 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? Thanks.

February 12, 2006, 09:12	Re: Sclieren Image.	#2
Ahmed Guest Posts: n/a	Schlieren images are obtained by displaying the magnitude of the vector gradient of the density.

February 12, 2006, 14:26	Re: Sclieren Image.	#3
AnotherCFDUser Guest Posts: n/a	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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