ENB205 Chapter Notes - Chapter 1: John Studebaker, Control Volume, Computational Fluid Dynamics
Document Summary
Study of motion of fluids that are practically incompressible (liquids in water, gases at low speed) is called. Hydrodynamics: subcategory of hydrodynamics is hydraulics, which is liquids that flow in pipes or open channels. Gas dynamics deals with the flow of fluids that undergo significant density changes. Aerodynamics is flow of gases (predominantly air) over bodies (aircraft, cars etc) A fluid is a gas or a liquid, the distinction between a solid and a fluid is made on the basis of the substance"s ability to resist an applied shear stress. Fluids are continuously deforming under stress, no matter how small or large. Fluid stress is proportional to strain rate, never stops deforming and approaches a certain rate of strain. Solid stress is proportional to strain, eventually stops deforming under force. Stress is defined as force per unit area (found by dividing the force by the area upon which it acts)
