**process average#
Description#
This post computation calculates the spatial average of variables
specified over a group of elements (elset) for each solution step.
The average of \(x\) is defined as:
(200)#\[\bar x = \frac{1}{V}\int_V x dV\]
Syntax#
**process average
\(~\,\) *list_var name1 … nameN
name1, … nameN are scalar values to be averaged.
Example#
**process average
*list_var sig11 epcum sigmises
**process momentum#
Description#
This post calculation is used to find then \(n\)-th order moment of
specified variables over a group of elements (elset) at each
solution time. The moment of order \(n>1\) of \(x\) is defined
as:
(201)#\[\sigma_n(x) = \left( \frac{1}{V}\int_V \left(x-\bar x\right)^n dV \right)^{1/n}\]
Syntax#
**process momentum
\(~\,\) *order n
\(~\,\) *list_var name1 … nameN
n is the order (integer value), and name1, … nameN are scalar variable names to treat.
Example#
**process momentum
*order 2
*list_var sig11 epcum sigmises