pisoFoam.C File Reference

Transient solver for incompressible, turbulent flow, using the PISO algorithm. More...

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Detailed Description

Transient solver for incompressible, turbulent flow, using the PISO algorithm.

Original source file pisoFoam.C

Solver details The solver uses the PISO algorithm to solve the continuity equation:

\[ \div \vec{U} = 0 \]

and momentum equation:

\[ \ddt{\vec{U}} + \div \left( \vec{U} \vec{U} \right) - \div \gvec{R} = - \grad p \]

Where:

\( \vec{U} \)	=	Velocity
\( p \)	=	Pressure
\( \vec{R} \)	=	Stress tensor

Sub-models include:

• turbulence modelling, i.e. laminar, RAS or LES
• run-time selectable MRF and finite volume options, e.g. explicit porosity

Required fields

U	:	Velocity [m/s]
p	:	Kinematic pressure, p/rho [m2/s2]
<turbulence fields>	:	As required by user selection

Definition in file pisoFoam.C.