ENGR 331
Momentum, Energy, and Mass Transport
Fall 2004
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Name: |
Dr. D. V. Pence |
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Office: |
316 Rogers Hall |
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Phone: |
(541) 737-7018 |
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E-mail: |
pence@engr.orst.edu |
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10:00-11:50 a.m. |
149 Weniger Hall |
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Course
Textbook: |
Fluid Mechanics Frank M. White, 5th Edition |
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Course
Prerequisites: |
MTH 256 and ENGR 212; ENGR 311 (Corequisite) |
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Tuesday |
8:30-9:30 a.m. |
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Thursday |
1:30-2:30 p.m. |
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Other times by appointment. |
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Course Description:
Fluid mechanics is the study of fluids, either liquid or gas, at rest or in motion. This study includes investigating the manner in which objects behave in fluids, the manner in which fluids flow through channels and around obstacles, and the interaction between two fluids. An integrated or elemental mass of fluid under investigation may undergo changes in internal energy due to a variety of reasons, including heating due to friction during fluid motion. Therefore, conservation equations employed in the present course include mass, momentum, and energy.
Course Learning Objectives:
By the completion of this course, students will be expected toÉ
1. Formulate the principles of conservation of mass, momentum, and energy and apply them to a variety of internal and external flows.
2. Formulate solutions to flow problems using appropriate fluid properties (i.e. density and viscosity), flow conditions (i.e. laminar or turbulent), and coordinate representations (i.e. Cartesian or cylindrical).
3. Solve conservation equations using a systematic approach based on differential and integral analyses of these conservation equations. This analysis process may include the following concepts:
á frictional losses
á minor losses
á shaft work
á hydrostatics
4. Apply the principles of dimensionless analysis and similitude to establish functional relations between important problem parameters. Applications include lift, drag, and friction coefficients.
5. Assess the results of engineering flow system problems using sound engineering judgement.
Classes/Attendance:
Each of you is responsible for the material covered during lecture. Lectures are designed to supplement the reading material in the text, not to repeat or replace it. Class time is intended to be interactive and will include the use of small discussion groups, class discussions, and class participation in solving problems.
Although attendance during lectures is not required, it is highly recommended. Changes to exam dates and to homework assignments and their respective due dates will be periodically announced in class. It is the sole responsibility of each student to remain informed of the course progress.
E-mail:
Each student is expected to create, access, and read e-mail on an ONID account (@onid.orst.edu). Instructions for creating such accounts are posted at www.onid.orst.edu. Please note that a distribution list has been created electronically by the college using ONID e-mail addresses. Your address on this list is not changeable; therefore, to receive messages at another account you will have to forward messages from your ONID account to your desired e-mail address. Messages about changes to class and homework hints are regularly sent out to students on this list. Please refrain from sending detailed questions regarding concepts, homework problems, etc. on e-mail. You are encouraged to stop by during office hours to ask such questions.
Reading Assignments:
To enhance the learning process, it is beneficial to read the assigned material and complete the reading guide prior to attending the class period during which the material will be discussed. Major topics and difficult concepts presented in the text will be covered in more detail during lecture. A second reading closely following the lecture is also extremely beneficial to the learning process. Also note that (1) all assigned reading material and (2) material covered in class, whether or not it is assigned as homework, will be fair game for exams.
Reading Guides:
Reading guides, to be posted at http://classes.engr.oregonstate.edu/engr/winter2005/engr331, are provided to help you take notes from the assigned reading material. Although completion of these guides is not a required part of the course, and therefore they will not be collected or graded, completed reading guides will (1) serve as part of your notes, (2) aid in your participation in classroom discussions, and (3) help prepare you for exams.
Homework Assignments:
Homework problems are designed to develop your problem-solving skills and provide practice of the fluid mechanic principles on which you will be tested. It is suggested that after a second reading of the material, as recommended under the reading assignments section, you work through the examples in the text as if they were homework problems without the solutions available, prior to working the assigned problems. You are encouraged to discuss homework in terms of solution methodologies, but not the solutions of a particular problem, with your classmates. The work you turn in must be your own and must be done independently of other people or resources. Students turning in the same computer generated solutions or extremely similar or identical hand written assignments will earn a zero for the entire homework set.
Homework sets, a collection of homework problems assigned the previous week, will be collected each Thursday at the beginning of class. Note that not every problem in the set collected will be graded. Each graded homework problem will be scored based on a 10-point scale. Illegible or sloppy homework will not be graded.
Late homework sets will be accepted only once from each student and must be turned in no later than class time on Thursday, one week following the due date. No exceptions. Late homework sets will be graded and returned at the convenience of the grader.
Exams:
Three midterm exams (one quiz and two tests) will be given during the regular class period. On exams, you will be required to apply, to entirely new problems, the fundamental principles outlined in the objectives. These principles will be discussed in class, covered in assigned reading material, and developed through homework assignments. Make-up exams will only be given for situations approved by the instructor prior to the start of the exam, except under clearly unavoidable or emergency circumstances. Unapproved absences from exams will result in a grade of zero (0) for the exam missed. For approved absences, a make-up exam will be given at a time convenient for the instructor. In order to ensure that make-up exams are as difficult as the original missed exam, make-up exams will intentionally be made more difficult than the original. If you have encountered a mistake in the grading of your exam, it will gladly be investigated. To have the error considered, please write a professional memo clearly explaining the grading error with a request to rectify the error. Unclear or nonprofessional memos will be returned without consideration. Attach the memo to the front of the exam and give to the instructor no later than one week after exams were returned to the class. Note that (1) the exam can have no writing on it other than that done during the exam, (2) the entire exam will be re-graded at the instructorÕs convenience, (3) if a grading error does not exist and the request is deemed frivolous, the instructor reserves the right to remove extra points for having had their time wasted, and (4) for ABET purposes, a random sample of 10% of the exams, as a minimum, will be photocopied prior to being returned.
Cheating/Student Conduct:
There is a Òzero toleranceÓ policy in effect for cheating in this class. Copying of any material to be turned in for a grade is considered cheating. Cheating will result in a grade of zero on a test and a grade of zero for the entire homework set containing a copied homework problem. All cheating and student conduct issues will be handled in strict accordance to the universityÕs policies as noted at http://osu.orst.edu/admin/stucon/regs.htm.
Performance Criteria and Grading:
Your performance in this class will be measured by your ability to accurately analyze fluid flow problems on selectively graded homework problems, three tests, and a final examination. More specifically, you will be expected to solve these problems using a systematic approach to new problems. This systematic approach, in general, requires you to:
1. recognize the difference between static and dynamic fluid analysis,
2. draw appropriate control volume boundaries,
3. determine appropriate governing equations,
4. assess the proper form of the governing equations (integral or differential),
5. identify relevant assumptions,
6. properly simplify the governing equations,
7. determine fluid properties,
8. employ correct unit conversions, and
9. assess
the solution using sound engineering judgment.
The final course grade will be determined using the following breakdown:
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Tests (2) |
50 % |
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Quiz (1) |
15 % |
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Homework |
10 % |
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Final Exam |
25 % |
An absolute scale of grading will be used to assess the final grade. The numerical grading scheme is shown below.
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90 |
A- |
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80 |
B- |
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70 |
C- |
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64 |
D |
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Below 64 |
F |
Course Schedule: (Subject to change)
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Date |
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Topic |
Reading * |
Guide |
Homework |
Due |
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Jan |
4 |
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Ch. 1 Ð Introduction |
1.1-14 |
7, 16, 38, 73 |
1/13 |
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6 |
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Ch. 2 - Hydrostatics |
2.1-5 |
6, 12, 18, 35, 52, 80 |
1/13 |
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11 |
T |
Ch. 2 - Hydrostatics |
2.6-8 |
83, 86, 110, 111, 130 |
1/20 |
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13 |
R |
Ch. 3 Ð Control Volumes |
3.1-3 |
3, 8, 12, 22 |
1/20 |
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18 |
T |
Ch. 3 Ð Control Volumes |
3.4 |
30, 39, 41, 50, 85 |
1/27 |
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20 |
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QUIZ (Ch. 1 Ð Ch. 2) |
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25 |
T |
Ch. 3
Ð Control Volumes |
3.6 |
135, 137, 146 |
2/3 |
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27 |
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Ch. 3 Ð Bernoulli Equation |
3.7 |
170,176 |
2/3 |
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Feb |
1 |
T |
Ch. 4
Ð Differential Relations |
4.1-5**,11 |
3, 9, 16, 34, 37 |
2/10 |
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3 |
R |
Ch. 4 Ð Differential Relations |
4.6-9 |
34, 43, 57, 62 |
2/10 |
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8 |
T |
Ch. 5 Ð Dimensional Analysis |
5.1-3 |
2, 12, 17, 27 |
2/17 |
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10 |
R |
MIDTERM #1 (Ch. 3 Ð Ch. 4) |
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15 |
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Ch. 5 Ð Dimensional Analysis |
5.5 |
60, 71, 72 |
2/24 |
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17 |
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Ch. 6 Ð Duct Flow |
6.1-3 |
5, 9, 13 |
2/24 |
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22 |
T |
Ch. 6 Ð Duct Flow |
6.4-6 |
24, 33, 41, 46, 66, 74 |
3/3 |
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24 |
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Ch. 6 Ð Duct Flow |
6.7 |
102 |
3/3 |
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Mar |
1 |
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Ch. 7 Ð Boundary Layers |
7.1-7.3 |
1, 16, 23, 39 |
3/10 |
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3 |
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MIDTERM
#2 (Ch. 5 Ð Ch. 6) |
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8 |
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Ch. 7 Ð Drag and Lift |
7.4-7.6 |
63, 88, 116 |
Not collected |
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10 |
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Catch-up and Review |
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Mar |
16 |
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Comprehensive Final Exam |
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(2:00-3:50 p.m.) |
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* Reading
material will be covered during lecture on the date listed.
$ Guides
are posted on the course web site and correspond with the reading assignments.
** Skip section 4.4 Ð angular momentum.