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how to define surface site density?

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Old   April 27, 2018, 16:31
Default how to define surface site density?
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Weiqiang Liu
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Hi all,

I 've been doing a simulation of three way catalytic by importing chemkin surface mechanism into Fluent. there are two kinds of surface site in the mechanism namely Pt and Rh and there is a comment in mechanism that says the surface of composed of 75% Pt and 25% Rh. In addition, there is only one surface site density defined in mechanism file which is 2.72E-9.

So my question is how can I define this site density in Fluent.
my though is to define Pt site with surface density of (2.72E-9)*3/4 and Rh site with surface density of (2.72E-9)/4. Is it right?

Can somebody help me? Thanks very much!

weiqiang
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Old   May 5, 2020, 15:41
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Vidushi
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Sir, Could you figure out? I also have the same query.
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Old   June 13, 2020, 22:13
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I think you're right

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