Domain Level Fluid Flow
Two Phase Flow Moving Mesh interface is a predefined physics interface coupling between a Single-Phase Flow interface and the Moving Mesh interface. Within the domains corresponding to individual phases the fluid flow is solved using the Navier–Stokes equations as in the Laminar Flow interface. The general form for the isothermal Navier–Stokes equations is:
where:
•
ρ
is the density (SI unit: kg/m
3
)
•
u
is the velocity vector (SI unit: m/s)
•
p
is pressure (SI unit: Pa)
•
F
is the volume force vector (SI unit: N/m
3
)
•
τ
is the viscous stress tensor (SI unit: Pa).
For a Newtonian fluid the viscous stress tensor,
τ
, is given by:
(4-18)
The dynamic viscosity
μ
(SI unit: Pa·s) is allowed to depend on the thermodynamic state but not on the velocity field.
Theory for the Single-Phase Flow Interfaces
