Integral Length Scale vs Turbulent Length Scale
I have a paper that specifies an integral length scale, L.
The input option for fluent is for a turbulent length scale, l.
The paper does not specify how the value, L, was measured, though I assume it was a trait of the turbulence grid.
My question: is there a "standard" approach to convert L to l for use in Fluent. Granted this may not be correct, but at least it is standard.
I have the same question.
If I know that for external flow in area with low buildings L=140m.
What turbulent length scale should I define in CFD?
I have some impression that AIJ may have some materials about this, you could find from it.
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