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measure of mixedness

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Old   November 17, 2005, 10:27
Default measure of mixedness
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I am modelling a mixer, so it is a rotational flow. I am quite new to numerical modelling.

I need to find a way to measure the level of mixing within in the flow, i.e. how homogenous the mixture is.

I have found a definition which is a ratio vorticity and strain rate tensor, but I have to write a fortran code to calculate it....which is incredibly scary for me!!

I was wondering if there was another way of measuring mixedness without having to write a fortran code, or to calculate the mixedness using the strain rate and vorticity.

I am quite desperate here, so any suggestions would be welcome.

Also if I have calculates values in the post registers, whats the best way of extracting them?

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Old   November 22, 2005, 11:15
Default Re: measure of mixedness
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How are you modelling the flow? Pressumably it is two liquids, are you using VOF? Cant you just look at the scalar concentrations?
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Old   January 7, 2006, 16:19
Default Re: measure of mixedness
bob moffat
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Sam, I am also interested in defining a measure for mixedness. I haven't found anything in the literature that looks useful for my problem. If you get some interesting responses would you please pass them on to me? Thanks. Bob
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