Finite volume options

Table of Contents

• Introduction
• Options
• Usage
  • Selecting the region

Introduction

OpenFOAM solver applications typically include core functionality such as turbulence modelling, heat transfer, and buoyancy effects.

Further flexibility is offered via fvOptions—a collection of run-time selectable finite volume options to manipulate systems of equations by adding sources/sinks, imposing constraints and applying corrections.

These are specified in the fvOptions file located in the $FOAM_CASE/system or $FOAM_CASE/constant directories.

Options

• Sources
• Constraints
• Corrections

Usage

Selecting the region

The majority of options are applied to collections of mesh cells. These can be selected according to the entry selectionMode, e.g.

selectionMode       all;

Valid selectionMode entries include:

• all: all cells

• cellZone: cells defined by a cell zone. This requires an additional entry to specify the name of the cell zone, e.g.

  selectionMode cellZone; cellZone myCellZone;

where myCellZone is the name of the cell zone

• cellSet: cells defined by a cell set. This requires an additional entry to specify the name of the cell set, e.g.

  selectionMode cellSet; cellSet myCellSet;

where myCellSet is the name of the cell set.

• points: a list of points. This requires an additional entry to list the points, e.g.

  selectionMode points; points ((0 0 0) (1 1 1) (2 2 2));

---

Would you like to suggest an improvement to this page?

Create an issue

---

Copyright © 2016-2018 OpenCFD Ltd.

Licensed under the Creative Commons License BY-NC-ND