Fluid dynamics is the science of motion of anything that flows, liquid or gas.
Flowing fluids are of central importance in an enormous range of applications in science and engineering, from astrophysics to physiology, chemical engineering to meteorology, lubrication to combustion, water waves to acoustics, etc. The principle examples analysed in this course are the hydraulics of rivers and canals and the aerodynamics of aircraft flight. It is therefore possible to write down equations governing the velocity and pressure fields in a fluid, and these are solved in a variety of physical situations, giving the student a feel for how fluids behave, and experience in modelling everyday phenomena. Specification of the velocity field. Euler's equations for an incompressible, inviscid fluid.