# What is a facet value

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 November 25, 2003, 12:09 What is a facet value #1 Tom Guest   Posts: n/a Hi. What is the difference between an average facet value and an average area value? Cheers Tom

 December 1, 2003, 13:51 Re: What is a facet value #2 ap Guest   Posts: n/a A facet value is evaluated on the face of the cell, an average area weighted value is the average value on the selected surface. Hi ap

 December 2, 2003, 05:21 Re: What is a facet value #3 Tom Guest   Posts: n/a Thank you for your answer. The reason for the question is that I have an outlet surface. If I calculate the facet value for the surface and the average value for the surface I do not get the same result. Do you know why there is a difference?

 December 4, 2003, 13:48 Re: What is a facet value #4 Ming Guest   Posts: n/a I think it is like this. Assume all your surface is composed of 3 faces of different area, i.e. 2, 3, 5 M^2. Assume the variable of your interest in these faces are 12, 15, and 18 Pa (assume pressure) Then: Average value based on surface area will be (2*12 +3*15 +5*18)/(2+3+5) Average facet value will be (12*1 +15*1 +18*1)/(1+1+1) where the number 1 reprents facet.

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