Physics 140 – Fall 2007
lecture #24: 29 Nov
Exam #3 tonight
6:007:30 pm
Ch 912
Ch 14 topics:
•
ideal fluid
dynamics
• volume flow rate
(incompressible fluids)
• Bernoulli’s equation
Starry Night
by V.van Gogh
An ideal fluid is defined by the following set of characteristics. The
flow of the fluid must be
•
steady
The velocity at any point in the flow does not change in time.
•
incompressible
The density does not change with pressure.
•
nonviscous
There are no sources of internal friction that could remove
energy from the flow.
•
irrotational
An element (small piece) of the flow traces out a straight
path aligned with the fluid velocity, not a helical pattern
around it.
Ideal fluids
This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentIdeal fluid flow
is a simple, but
useful approximation to actual
fluid motion.
Arrows here represent the flow
velocity in a crosssectional
cutout of the pipe.
The velocity is constant across the
area, there is no rotation, and no
drag (viscosity) near the edges of
the pipe.
This is the end of the preview.
Sign up
to
access the rest of the document.
 Fall '07
 Evrard
 Physics, Fluid Dynamics, Energy density, ideal fluid

Click to edit the document details