For 2D problems, Ansys Fluent computes all integral quantities
for a unit depth equivalent to 
meter. This value can be adjusted to match the specific
dimension of your application only by manually revising the Depth in the Reference Values Task Page (see Reference Values).
Important: The default value of Depth will be equivalent
to 
meter, even if the units are changed for depth in the Set Units Dialog Box (for example,
if the units for depth are changed to cm in the Set Units Dialog Box, the value of Depth in the Reference Values Task Page will
be 
cm).
Note that inputs for DPM and fluid massflow are always assumed to correspond to a 1m deep version of the model model and are scaled accordingly. For example, if the reference Depth is set to 0.5 m, effectively reducing the model by half, massflows used in volume integral calculations will be half of the original massflows.
For axisymmetric problems, all integral quantities are computed
for an angle of 
radians.