Transcript Fluid Mechanics

Fluid Mechanics
CEE 331
July 18, 2015
Course Logistics
 Instructor
 Monroe
Weber-Shirk (HO 115)
 Teaching Assistants
 Tso-Ren
 Where
 CEE
(HO 114)
Wu
can you get the latest updates?
331 web site
http://www.cee.cornell.edu/courses/
Section/Laboratory Organization
 Section
2:30 – 4:30
 Hollister 366
 Discuss questions, work on examples and
homework, review for exams
 Monday
 Laboratory
 Wednesday
2:30 - 4:30 pm in Hollister 150
(Environmental Teaching Laboratory)
Hands-on Laboratory
Experiments
 Statics
 Free
Jet and Bernoulli
 Mass Conservation
 Momentum and Energy Conservation:
 Determination of the Friction Factor
 Hydraulic Systems: Pumps and Valves
Homework
 Your
chance to practice using the concepts
presented in class
 Teamwork with one solution per team
 Answers to even numbered problems are in
the text
 Guidelines at the web site!!!
Learning Resources
 Teaching Assistant
 Office
(Tso-Ren)
hours: (114 HO)
 To
be determined!
 M (section 2:30 – 4:30)
 T ????
 W (laboratory 2:20-4:30) (previous laboratory due)
 Interaction
during section and labs
Learning Resources
 Course
notes
 hard
copy
 on the web
 World
Wide Web
 Animations/movies
(also come with the text)
Attendance Policy
 Attendance
is required for lecture,
laboratory, and section
 Worth 10% of your grade
 First
unexcused absence no penalty
 Second unexcused absence lose 4%
 Third unexcused absence lose 6%
Why Fluids?
 Brainstorm
a list of engineered or biological
devices that require an understanding of
fluids to explain how they work.
 What fluids properties do you think would
be important in explaining each of the
devices?
Course Topics
 Fluid
Properties
 Statics
 Bernoulli Equation
 Explain
why a ping-pong ball can be held in an
air jet
 Control Volume Analysis
 Quantify
the effects of mass, momentum and
energy flux
 Explain why lawn sprinklers rotate
Course Topics
 Pipe
Flow
 How
big does the tunnel have to be that carries
drinking water into NYC?
 External
Flows
 How
much power does it take to drive a new
VW beetle at 100 kph?
 Open
Channel Flow
 How
deep will the water be in Fall Creek
during a spring snow melt caused by a warm
rain?
My Goals for the next six
weeks...
 That
each of you develop an intuition for
the fundamental principles of fluid
mechanics
 That you leave this course saying, “Fluids
makes sense” and “I can tackle fluids
problems.”
 That we have an enjoyable 6 weeks learning
together
Dams and Reservoirs
Water Distribution
Lock Haven Flood Protection
Project
Cost: $85M
http://www.nab.usace.army.mil/pbriefs/lhfloodpro.html