Fluid Mechanics Notes Free

Kinematics describes fluid motion without considering forces. This section relies heavily on the (fixed point in space) and Lagrangian (following a particle) descriptions.

A substance that deforms continuously under the application of shear stress, no matter how small the stress. Unlike solids, which have a definite shape, fluids take the shape of their container. fluid mechanics notes

The measure of the change in volume relative to a change in pressure. $$ \beta = -\frac1V \fracdVdP $$ Kinematics describes fluid motion without considering forces

The ratio of the density of a fluid to the density of a standard reference fluid (usually water at $4^\circ C$). $$ SG = \frac\rho_fluid\rho_water $$ which have a definite shape