BIOS1170 Lecture Notes - Lecture 2: Perfect Fluid, Blood Vessel, Viscosity

• School: University of Sydney
• Department: Biomedical Science
• Course: BIOS1170
• Professor: Dr Jaimie Poulson

Document Summary

If a fluid is in motion, then it can exert a force blood vessel. How fast or slow a fluid is flowing. Q = v/t (volume/time) (meters per second) Q = va (velocity, area of cross section) (volume of the fluid that has flowed in the time) To maintain the same flow rate in a differing cross section, velocity differs (highest in the thinnest cross section, slowest in widest cross section) Ideal flow no friction, does not exist, velocity is the same the whole way, no loss in kinetic energy. Laminar flow some friction, some loss in kinetic energy, shaped like parabola. Turbulent flow most loss in kinetic energy, high velocity -> turbulent may arise. Statement of conservation of energy applying to the flow of an ideal fluid. In the flow of an ideal fluid, the sum of pressure, kinetic energy per unit volume, potential energy per unit volume would remain unchanged. Where velocity is high, pressure is low.