Retrieving "Ideal Fluid" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Cauchy Stress Tensor

   Linked via "ideal fluids"

   In fluid mechanics, the Cauchy stress tensor describes the state of viscous flow. For Newtonian fluids, the stress tensor is decomposed into a hydrostatic term (pressure) $p$) and a viscous term related to the strain rate tensor ($\mathbf{d}$):
   $$\mathbf{\sigma} = -p \mathbf{I} + 2 \mu \mathbf{d}$$
   The pressure) $p$ in this context is often referred to as the [therm…