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Civil Engineering Hydraulics Mechanics of Fluids

Fundamentals

Class hours 9:10 to 10:05 Textbook: Introduction to Fluid

Mechanics, William S. Janna, Third Edition (you can use the Fourth Edition)

Third Edition is available from Dr. Marchetta on the third floor.

Class Overview 2

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Class Overview 3

What are my rules?

Get here on time Come to class

Even if I dont entertain you Submit your homework Ask questions at any time

There are no dumb questions Respect your classmates

Class Overview 4

What are my rules?

You are becoming engineers, your work should reflect that Homework submission on

engineering paper Logical sequence of steps that could

be followed by a novice Identify everything known or given by

the problem

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Class Overview 5

What are my rules?

You are becoming engineers, your work should reflect that A sketch is always useful in

describing a problem Identify what you are looking for Identify all your assumptions Use units in all steps

Class Overview 6

What are my goals?

Give you the opportunity to develop a sound fundamental background in fluid mechanics to allow you to utilize this background in The FE exam Further undergraduate study Professional practice

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Class Overview 7

Questions for You

What are your immediate goals (by the end of the semester)?

What are you willing to do (honestly) to achieve those goals?

Class Overview 8

What are you willing to do to achieve your goals? This class meets three hours a week As an average, a student would

spend at least nine hours outside of class to get a B

This usually holds true for every class not just this one

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Class Overview 9

Homework

You can expect to have at least one problem but no more than four problems for any assignment

Even if you dont complete the assignment, submit what you have for evaluation

Something is always better than nothing

Class Overview 10

Toolbox

You are expected to have a working knowledge of Algebra Trig Calculus Physics Some computational/programming

system or language

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Class Overview 11

A Quiz

The following slides each have a question

Please answer them the best you can Do not use any sort of calculation

device (phone, calculator, etc.) all you need is a pencil and paper

Class Overview 12

A Quiz

How much, in force pounds, does a gallon of water weigh?

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Class Overview 13

A Quiz

How much, in Newtons, does a liter of water weigh?

Class Overview 14

A Quiz

How many gallons of water are in a cubic foot of water?

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Class Overview 15

A Quiz

How many liters of water are in a gallon of water?

Class Overview 16

A Quiz

What is the approximate volumetric flow rate of the water fountain across the hall in cubic feet per minute?

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Class Overview 17

A Quiz

About how long would it take the average garden hose connected to a residential faucet to fill this classroom?

Class Overview 18

A Quiz

What is the mass density of water in the USCS system?

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Class Overview 19

A Quiz

How much does a slug weigh at standard gravity? Use pounds force for the weight.

Class Overview 20

A Quiz

Putting a nozzle on the end of a hose will

1. Increase the velocity of the water 2. Increase the pressure of the water 3. Increase the volumetric flow rate of

the water 4. All of the above

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Class Overview 21

A Quiz

Viscosity and density are the same thing True False

Class Overview 22

A Quiz

Force and pressure are the same thing True False

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Class Overview 23

Reading

Through Section 1.3 No homework problems yet.