The sum function calculates the sum of
a variable or expression on the specified location.
Note: CFD-Post and CFX-Solver compute the sum in different ways:
CFD-Post computes the sum of the vertex values for the location.
CFX-Solver computes the sum of the vertex values for a 3D location.
CFX-Solver computes the sum of the face values for a 2D location. The value for a particular face is computed by arithmetically averaging the vertex values of the face.
sum(<Variable|Expression>)@<Location>
where:
<Variable|Expression>is a variable or expression.<Location>is, in the context of CFX-Solver, a 2D region or 3D region (such as a domain or subdomain) or, in the context of CFD-Post, a Point object or a 1D, 2D, or 3D locator, or injection region. For an injection region, an average value is calculated at each position, and then these are summed over all positions.