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Old 6th July 2007, 05:04   #12 (permalink)
ananthkamath
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Join Date: Jul 2005
Location: Detroit, Michigan
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I found this through google:

http://www.fluent.us/direct/dieselnet-listing/ex185.pdf

You can see in Fig. 3 that the velocity loss through the cat is negligible, and the contours prove that the velocity in the headers is the same as that in the cat. But the pressure loss is considerable as in Fig. 4. Is this enough to hurt flow and thus power? We dont know yet.
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