Create cartesian grids¶

To create a Cartesian Grid in the Main Menu select Model -> Construction -> Make Grid.

Three kinds of grid can be created:

simple cartesian grid (see Simple cartesian grid),
uniform cartesian grid (see Uniform cartesian grid),
custom cartesian grid (see Custom cartesian grid).

Simple cartesian grid¶

To create a simple cartesian grid, select radio button Simple:

Dialogue Box for a Simple cartesian grid

The following data are required:

nb X: The number of hexahedra along the X axis
nb Y: The number of hexahedra along the Y axis
nb Z: The number of hexahedra along the Z axis

The result of this action is:

Simple Cartesian Grid

TUI command: Simple Cartesian Grid

Uniform cartesian grid¶

To create an uniform cartesian grid, select radio button Uniform:

Dialogue Box for an Uniform cartesian grid

The following data are required:

origin: The vertex of the origin
vec X : The X vector
vec Y : The Y vector
vec Z : The Z vector
len X : The length of an hexahedra on the X axis
len Y : The length of an hexahedra on the Y axis
len Z : The length of an hexahedra on the Z axis
nb X : The number of hexahedra on the X axis
nb Y : The number of hexahedra on the Y axis
nb Z : The number of hexahedra on the Z axis

Clicking on “Apply” on the previous dialog box will produce the following grid (Uniform hexahedra, different sizes on the three axis):

Unfiorm cartesian grid

TUI command: Uniform Cartesian Grid

Custom cartesian grid¶

To create a Custom cartesian grid, select radio button Custom:

Dialogue Box for a Custom cartesian grid

The following data are required:

origin: The vertex of the origin
vec X : The X vector
vec Y : The Y vector
vec Z : The Z vector
X : A list of x values in ascendant order
Y : A list of y values in ascendant order
Z : A list of z values in ascendant order

A value on each axis gives the length of an hexahedra on that axis from the origin of the grid. For example the first value in the list of x values is the length on X axis of the first hexahedra from the origin.

The result of this action is:

Custom cartesian grid

TUI command: Custom Cartesian Grid