7.3.2.2.4 Mass conservation (strike)

According to the ``common'' model, the gate velocity decreases when the plunger diameter increases. Conversely, the gate velocity increases when the plunger diameter decreases<sup>9</sup>. 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.