PHYS 101 Lecture Notes - Lecture 34: Venturi Effect, Statics

• School: Simon Fraser University
• Department: Physics
• Course: PHYS 101
• Professor: Andrew Debenedictis

Document Summary

Phys 101: physics for the life sciences lecture 34: Take the fluid in the tube as the system. P1 p2 g y2+ g y1= 1. V m( v 2 2 v 1 2) (divide by v ) ( v 2 2 v 1 2) ( v 1= v 2. Consider the fluid at rest ( v =0 ) then, If the pressure in the two sections of the venturi tube are known determine the flow speed in the second section. Height does not change (of the centre of mass) so gravitational potential term cancels y2= y1. If we assume that the heights are approx. the same then, If we increase the velocity then according to this equation there is a pressure drop. Consider the cross-section of airplane (kondo effect - air near solid surfaces likes to stay near solid surfaces)