me 5104 syllabus c14(1)

of 4

ME5104/ME593T: Turbomachinery C-14

ME 5104/ME 593T: Turbomachinery C-Term 2014

Prof. Anthony Linn TA: TBD

Higgins Lab 240, ext 5462

[email protected]

Lecture Times: Tu, Th, 15:00-16:50 Olin Hall 109

Text: S. L. Dixon & C.A. Hall, Fluid Mechanics and Thermodynamics of Turbomachinery (7thed.),

Elsevier Inc., 2014. The text is not required, but is recommended. Copies of the 3rd and

5th edition are in the library and will be placed on reserve. The text is also available

electronically at the Gordon Library.

Website: myWPI will be used for all assignments and course information

Office Hours: Prof. Linn Monday 15:00-16:00 HL240

Friday 10:00-11:00 HL240

Other times by appointment only.

Grading: Two take-home exams 25% each (total 50%)

Three take-home quizzes 10% each (total 30%)

Poster Presentation 20%

Course Objectives:

This course will study the aerodynamics and thermodynamics of turbomachinery. The course will cover

preliminary design techniques for turbomachinery and provide a comprehensive view of the behavior of

flows within these machines. Upon completion of this course you should be able to:

Apply fundamental principles for thermodynamics and fluid mechanics to problems related to

internal flows through blade passages,

Be able to perform preliminary design of a turbomachine,

Understand the reasons for the physical characteristics of axial and radial machines,

Have some sense of the scope of the current research in turbomachinery.

Assumed Background:

The student will be expected to have a background in thermodynamics equivalent to ES3001 and Fluid

Mechanics equivalent to ME3602 Incompressible Fluid Mechanics and ME3410 Compressible Fluid

Mechanics. Gas Turbine Cycle Analysis, such as covered in AE/ME4710, will be helpful. Students who

lack this background and wish to prepare for the course may study:

James E. John & Theo G. Keith, Gas Dynamics (3rd ed), Pearson Prentice Hall, 2009.

John D. Anderson Jr., Modern Compressible Flow(3rd ed), McGraw Hill, 2003

of 4


Dixon & Hall, Chapter 1.9

Homework:

Approximately 5 assignments will be given. Each assignment will contain approximately 3-5 problems.

The answers to each assignment will be provided with the assignment however, the solutions will not be

given. The homework is the primary exposure to the type of problems on the quizzes and exams and

students are advised to complete the homework.

Quizzes:

Three take home quizzes will be assigned during the course. Quizzes are intended to assess the

students comprehension of concepts covered during lecture. Students will be given 24 hours to

complete quizzes.

Exams:

Two take home exams will be given. The exams are intended to assess the students ability to apply

concepts to solve problems similar to those presented in the homework assignments and lecture.

Students will be allowed 24 hours to complete exams.

Poster Presentation:

The final class meeting will be dedicated to student poster presentations. Students will organize

themselves into groups of three. Each student group is to prepare a poster the subject of recent

conference proceedings in turbomachinery. A list of papers will be provided. Students should try to

select a paper topic that they find interesting. The objective of the poster presentation is to make

students aware of the breadth of research in the field of turbomachinery. Students will be graded on

their presentations, the ability to respond to questions about the paper and their understanding of the

subject matter.

Students must inform the instructor of their group members and selection of paper by COB Friday 14

February. You may make your selection earlier.

Conflicts:

Students should inform the instructor of any long standing commitments that may interfere with exams

or quizzes by the end of the first week of class so that alternate arrangements may be made. Changes

on short-notice must be requested before the exam or quiz. Short-notice changes will only be accepted

for emergencies. Requests for make-up due to illness must be accompanied by a letter or email from

the Director of Student Health Services (508)-831-5520.

Extra Credit Assignments:

No extra credit assignments will be available.

of 4


Course Accommodations:

If you need course adaptations or accommodations because of a disability, or if you have medical

information you need to share with me, please make an appointment with me as soon as possible.

Students who believe that they may need accommodations in this class are encouraged to contact the

Disability Services Office (DSO) as soon as possible to ensure that accommodations are implemented in a

timely manner. The DSO is in Daniels Hall, (508)-831-5235.

Syllabus:

Dixon & Hall

1. Background

a. Flow model 1.2

b. Velocity Triangles and Sign Convention

4.2,5.3

c. Eulers Work Equation 1.6

d. Compressible Flow 1.9

e. Dimensionless variables i. Flow Coefficient

ii. Stage Loading Coefficient iii. Stage Reaction

2.4, 4.3, 5.7

2. Overall Performance Scaling of Turbomachines

a. Dimensional Analysis of Low Mach Number Machines 2.2

b. High-Mach Number Machines i. High Speed Compressor Characteristics

ii. High Speed Turbine Characteristics

2.4, 2.5

c. Efficiency 1.10, 1.11

3. Preliminary Design

a. Specific Speed 2.6

b. Repeating Stages 4.5

c. Outline Stage Design i. Number of Stages

ii. Size of Blades

4. Cascade Aerodynamics Chapter 3

a. Blade-to-Blade Flow

b. Cascade Geometry 3.2

c. Streamtube Thickness Variation 3.3

d. Cascade Performance Parameters 3.3

e. Blade Surface Distributions 3.3

of 4


5. Axial Compressor Mean Line Design

a. Introduction

b. Diffusion 3.5

c. Deviation 3.5

d. Effects of Mach number 3.5

e. Effects of Incidence 3.5

f. Axial compressor stage design

6. Axial Turbine Mean line Design Chapter 4

a. Introduction

b. Loss coefficients

c. Blade Spacing 3.6, 4.7

d. Blade exit angle 3.6

e. Effects of Mach number 3.6

f. Turbine stage design 4.8

g. Calculation of stage efficiency from loss coefficients 4.6

7. Radial Flow Turbomachines Chapter 7

a. Introduction 7.2

b. Velocity triangles 7.2, 8.2

c. Eulers work equation for radial flow machines

d. Equations of motion in rotating frame

8. Centrifugal compressors and pumps Chapter 7

a. Introduction

b. Slip in radial turbomachines 7.8

c. Achievable pressure ratio 7.10

d. Inducer diameter

e. Splitter vanes

f. Centrifugal compressor diffuser 7.11

9. Radial in flow turbines Chapter 8

a. Introduction 8.2, 8.3

b. Scroll and stator blades

c. Flow in the rotor

d. Leaving loss 8.12

10. 3-D Flows

a. Secondary Flow

b. Tip Leakage Flow

c. Blade Sweep

d. Blade lean

me 5104 syllabus c14(1)

Documents