A Rivlin–Ericksen temporal evolution of the strain rate tensor such that the derivative translates and rotates with the flow field. The first-order Rivlin–Ericksen is given by
Aij(1)=
\partialvi | + | |
\partialxj |
\partialvj | |
\partialxi |
vi
Aij(n)
n
Aij(n+1)=
l{D | |
The derivative chosen for this expression depends on convention. The upper-convected time derivative, lower-convected time derivative, and Jaumann derivative are often used.