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non-uniform-distribution nucleation sites

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Old   September 29, 2013, 13:08
Question non-uniform-distribution nucleation sites
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why we have non-uniform-distribution nucleation site in RPI wall boiling model?

I would be grateful if you could answer my question about RPI wall boiling model.
what parameter in RPI model in fluent cause non-uniform-distribution of nucleation site density in boiling boundary?
after using this model for a horizontal plate with a constant heat flux we have non-uniform-distribution for vapor volume fraction.
I know everything about bubble frequency, heat flux partitioning, nucleation site density and speciic area for quench part. but how on a boundary in computational domain, a cell is specified as nucleation site while the neighbor cell is not? we know that both are located on the same boundary with same total heat flux.

check this
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boling, fluent, rpi

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