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6.8.11 Translating the Grid

You can "move'' the grid by applying prescribed offsets to the Cartesian coordinates of all the nodes in the grid. This would be necessary for a rotating problem if the grid were set up with the axis of rotation not passing through the origin, or for an axisymmetric problem if the grid were set up with the axis of rotation not coinciding with the $x$ axis. It is also useful if, for example, you want to move the origin to a particular point on an object (such as the leading edge of a flat plate) to make an XY plot have the desired distances on the $x$ axis.

You can translate grid points in FLUENT using the Translate Grid panel (Figure  6.8.11).

Grid $\rightarrow$ Translate...

Figure 6.8.11: The Translate Grid Panel
figure



Using the Translate Grid Panel


The procedure for translating the grid is as follows:

1.   Enter the desired translations in the $x$, $y$, and (for 3D) $z$ directions (i.e., the desired delta in the axes origin) in the X, Y, and Z fields under Translation Offsets. You can specify positive or negative real numbers in the current unit of length.

2.   Click on the Translate button. The Domain Extents will be updated to display the new extents of the translated grid. (Note that the Domain Extents are purely informational; you cannot edit them manually.)


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