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According to the ``common'' model, the gate velocity decreases when the
plunger diameter increases.
Conversely, the gate velocity increases when the plunger diameter decreases9.
According to equation () the liquid metal
flow rate at the gate increases as well.
However, according to the ``common'' diagram, the plunger
can move only in
a finite velocity lets say in the extreme case 10.
Therefore, the flow rate at the plunger tip decreases.
Clearly, these diametrically opposing trends cannot coexist.
Either the ``common'' diagram wrong or the mass balance concept is
wrong, take your pick.
Genick Bar-Meir ||| www.potto.org
copyright Dec , 2006
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