rotatedBoxToCell

Table of Contents

• Description
  • Operands
  • Notes on entries
• Further information

Description

A topoSetCellSource to select cells based on cell centres inside a given parallopiped (i.e. rotated/skewed box).

Operands

Operand	Type	Location
output	cellSet	$FOAM_CASE/constant/polyMesh/sets/<set>

Description

Example of the rotatedBoxToCell topoSet by using actions sub-dictionary in system/topoSetDict file:

{
    // Mandatory (inherited) entries
    name        <name>;
    type        cellSet;
    action      <action>;

    // Mandatory entries
    source      rotatedBoxToCell;
    origin      (<o1> <o2> <o3>);
    i           (<i1> <i2> <i3>);
    j           (<j1> <j2> <j3>);
    k           (<k1> <k2> <k3>);
}

where the entries mean:

Property	Description	Type	Required	Default
name	Name of cellSet	word	yes	-
type	Type name: cellSet	word	yes	-
action	Action applied on cells - see below	word	yes	-
source	Source name: rotatedBoxToCell	word	yes	-
origin	Origin of the box	vector	yes	-
i	x1-axis	vector	yes	-
j	x2-axis	vector	yes	-
k	x3-axis	vector	yes	-

Options for the action entry:

new      | Create a new cellSet from selected cells
add      | Add selected cells into this cellSet
subtract | Remove selected cells from this cellSet

Notes on entries

Box defined as origin and i,j,k vectors. For example, box rotated 45 degrees around z-axis with sizes sqrt(0.2^2+0.2^2) (and extra large, 200 in z direction):

origin   ( 0.4 0.4 -100);
i        ( 0.2 0.2  0);
j        (-0.2 0.2  0);
k        ( 0.0 0.0  100);

Further information

Tutorial:

• $FOAM_TUTORIALS/incompressible/pisoFoam/RAS/cavity

Source code:

• Foam::rotatedBoxToCell

History

• Introduced in version 1.5

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