Basic fluid mechanics

This chapter provides the basic properties of fluids. Fluids are divided into liquids, which are virtually incompressible, and gases, which are compressible. A fluid consists of a collection of molecules in constant motion; a liquid adopts the shape of a vessel containing it while a gas expands to fill any container in which it is placed. The chapter discusses several basic fluid relationships and fluid principals. It also describes the fluid regimes, boundary layers, and normal shock waves.