...
A share of total pipe cross-section area occupied by moving
-phase is called an
-
phase phase hold-up and defined as:
| LaTeX Math Block |
|---|
|
s_\alpha = \frac{A_\alpha}{A} |
...
The actual average cross-sectional velocity of moving
-phase is called
in-situ velocity velocity and defined as:
| LaTeX Math Block |
|---|
|
u_\alpha = \frac{q_\alpha}{A_\alpha} |
where
is the volumetric
-phase flowrate through cross-sectional area
.
The superficial velocity velocity of
-phase is defined as the
...
The difference between velocities of
-phase and
-phase is called
interfacial phase slippage:
| LaTeX Math Block |
|---|
|
u_{\alpha_1 \alpha_2} = u_{\alpha_1} - u_{\alpha_2} |
...
