Continental Shelf, Fluid Dynamics
In fluid dynamics, the “strain rate tensor” is declared to be: $$\displaystyle S_{ij} = \frac12\left( \frac{\partial u_i}{\partial x_j} + \frac{\partial u_j}{\partial x_i} \right) $$ This quantity is usually derived using a diagram of a square fluid element in 2D and considering the rates of increase of two angles as the square deforms into a parallelogram. … Read More “The Strain Rate Tensor” »