10. Statics#

The behavior of continuous medium in static conditions can be used to define a fluid.

Definition 10.1 (Fluid)

A fluid can be defined as a continuous medium with no shear stress in static conditions. Thus, the stress tensor of an isotropic fluid under static conditions reads

$${\mathbb{T}}^s=-p\mathbb{I},$$

where $p$ is pressure. (todo mechanical? Thermodynamical?)