Многофазное течение. Superficial velocity

[vl 327]

В чем разница между просто Velocity и Superficial velocity?

Что именно вляется скоростью фазы или среды?

[Dick 0]

Из мануала:

Multiphase results files contain the vector variable Fluid.Superficial Velocity defined as Fluid.Volume Fraction multiplied by Fluid.Velocity. This is sometimes also referred to as the fluid volume flux. The components of this vector variable are available as scalar variables (e.g., Fluid.Superficial Velocity X).

It is useful to use this variable for vector plots in separated multiphase flow, as you will only see a vector where a significant amount of that phase exists.