THE UNIVERSITY OF TEXAS AT AUSTIN Department of Aerospace Engineering and Engineering Mechanics

ASE 120K Low Speed Aerodynamics Laboratory

FALL 2009

SYLLABUS Unique Number: 13535 Instructor: Prof. Charles E. Tinney

WRW-301A 512.471.4147 cetinney@mail.utexas.edu

Time: Lecture: W 4:00PM – 5:00PM Laboratory: to be determined in class. Location: Lecture: WRW-102. Laboratory: WRW 002 (Subsonic Wind Tunnel) and WRW 010 (Water Tunnel) Teaching Assistant: Woutijn Baars, baars@mail.utexas.edu, James Stephenson, james.h.stephenson@mail.utexas.edu Web Page: http://www.ae.utexas.edu/aerospaceUndergrad/ASE120K.html Catalog Description: Physical and quantitative observations of some elementary behaviors found in fluid mechanics: aerodynamics of airfoils and wings, blunt body flows and boundary layers. Course Objectives: To become independent problem solvers through a fundamental learning of fluid mechanics. Prerequisites: Credit with a grade of at least C or registration for Aerospace Engineering 320 and 333T (or another approved engineering communication course), and Mathematics 427L with grade of at least C. Knowledge, Skills, and Abilities Students Should Have Before Entering This Course: Strong knowledge of differential and integral calculus, basic engineering physics, basic programming (e.g. Matlab, Excel, Mathematica, etc.), plotting and graphics, and word processing. Knowledge, Skills, and Abilities Students Gain from this Course (Learning Outcomes): Students will gain intuition about fundamental behaviors of fluid flows, an understanding of basic experimental methods and the aerodynamics of aircraft. Students are expected to gain a better understanding how to construct a quality technical report and work in a team oriented setting. Impact On Subsequent Courses In Curriculum: Material is presented as co-requisite with that of ASE 320 and is most important for subsequent courses in viscous and compressible flows, propulsion, flight mechanics, aircraft design.

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Relationship of Course to Program Outcomes: This course contributes to the following ABET Criterion 3 outcomes and those specific to the EAC accredited program.

Outcome √ Outcome √ a. An ability to apply knowledge of mathematics, science, and engineering

√ g. An ability to communicate effectively √

b. An ability to design and conduct experiments, as well as to analyze and interpret data

√ h. The broad education necessary to understand the impact of engineering solutions in a global, economic, environmental, and societal context.

c. An ability to design a system, component, or process to meet desired needs within realistic constraints such as economic, environmental, social, political, ethical, health and safety, manufacturability, and sustainability.

i. A recognition of the need for and an ability to engage in life-long learning

d. An ability to function on multi-disciplinary teams

j. A knowledge of contemporary issues

e. An ability to identify, formulate, and solve engineering problems

√ k. An ability to use the techniques, skills, and modern engineering tools necessary for engineering practice

√

f. An understanding of professional and ethical responsibility

ABET Program Criteria Achieved:

Criterion √ Criterion √ Criterion √ A. Aerodynamics √ G. Orbital Mechanics M. Preliminary/Conceptual Design B. Aerospace Materials H. Space Environment N. Other Design Content C. Structures I. Attitude Determination and

Control O. Professionalism

D. Propulsion J. Telecommunications P. Computer Usage √ E. Flight Mechanics √ K. Space Structures F. Stability and Control L. Rocket Propulsion

Topics: The course emphasizes a laboratory based learning of the fundamental behaviors of fluid flows through an examination of the flows around airfoils. Flows about spheres are considered in detail as a prototypical flow about a blunt body in which the state of the boundary layer is of great significance. Group projects will emphasize different aspects of fluid mechanics, which will be chosen and designed by the members of a particular group. Students will also become familiar with several common flow measurement techniques: (1) Laser Doppler Anemometry (LDA), (2) Pitot-Static tube, (3) Constant Temperature Anemometry (CTA), (4) Flow-Visualization, and (4) wind and water tunnel operation. Safety is discussed although none of the equipment is especially hazardous. Specific lecture topics are highlighted in the Expected Schedule. Professionalism Topics: There are several aspects of this course that relate to engineering professionalism. In particular, the student’s ability to clearly communicate their findings from each laboratory is weighted heavily in the grading. Also, in the third lab study, students will execute their experiments as part of a group effort. Thus, teamwork will be essential for this component of the course and grades will be weighted based on participation of the individuals in their respective groups. Design Assignments: Depending on the projects chosen by each group, there may or may not be a design component. If a group chooses to build and instrument its own model, then design work will be involved. Students interested in a specific project should discuss their ideas with me early in the semester. Laboratory Assignment: The laboratory assignment will comprise three technical reports, each of which will be due to the Professor subsequent to performing the laboratory. Computer: Students will use a computer to prepare all written reports. Students may use a computer to download electronic video or still images for analysis in any software package of their choice (e.g., Photoshop). Students may also prepare contour plots of field data using software of their choice (e.g., Tecplot, Matlab, Excel or Mathematica). Text: ASE 320 Textbook Course Packet on the Web: http://www.ae.utexas.edu/aerospaceUndergrad/ASE120K.html Fluid Mechanics Measurements, ed. R. Goldstein (reserve)

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Theory and Design for Mechanical Measurements, Figliola &Beasley, (latest edition) Wiley Publ. Other texts are on reserve in the Engineering Library Class Format: Laboratory tests will be conducted in groups of about five or six students. Each group is allowed two hours for the first two laboratories. This is fully adequate provided you understand the assignment before you come to the lab. Formal individual lab reports are due two weeks after the end of your lab period and must be printed on a word processor and submitted in both hard copy to me and electronic format to the TA (e-mail, text only). Report format, grammar, and spelling will help determine your report grade. The large group project lab time will be scheduled later in the semester. Class Schedule: Class Outline:

Lab Test Schedule (1) Airfoil Study Sept 14-18 (2) Drag on a sphere Oct 12-16 (3) Group Project Nov 9-20 (Schedule lab time with TA) Grading: Laboratory #1 25% Laboratory #2 35%

Laboratory #3 or Group Project 40% Homework Policy: There will be no homework assignments, although students are expected to read assigned material before showing up to the laboratory. Examinations: There will be no examinations. Grades are based on performance of laboratory reports. Attendance: Regular attendance in Lecture is expected. Regular attendance in laboratory is mandatory! NOTE: Missed labs MUST be made up during the scheduled week of the test because a new set-up will be installed at the end of the week. You MUST attend the lab to get a grade for the lab. Failure to turn in reports will result in an F for the class. Copying or paraphrasing the work of another without proper attribution is plagiarism subject to the University policy on cheating. You may utilize ONLY the old lab reports that I provide directly to you. Office Hours: To be announced. For now: TTH in WRW-301A, 3:00 – 4:00pm. Scheduled appointments or walk-

ins are always welcome.

Expected Fall Schedule – 2009 (Subject to Change)

see: http://registrar.utexas.edu/calendars/08-09/index.html for a complete listing. Aug 26: 1 Syllabus and Course Overview Lab section assignments Last day of official Add/Drop period August 31. Sept 2: 2 Report Writing Guidelines 3 Flow Variables & Sources of Error Labor Day Holiday September 7. Sept 9: 4 Flow Measurement Devices I 5 Wake Surveys of a NACA 0012 Airfoil (airfoil lab handout) Airfoil laboratory study performed during the week of September 14. Sept 16: 6 Digital Signal Processing Sept 23: A current fluids related study in ASE + Video (vidcas 3546) "Fundamentals of Boundary Layers"

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Airfoil laboratory reports due during the week of September 28 (two weeks from date of lab study) Sept 30: 7 Flow Measurement Devices II Oct 7: 8 Fluid Dynamic Drag on a Sphere (sphere lab handout) Sphere laboratory study performed during the week of October 12. Oct 14: Video (vidcas 3537) "Boundary Layer Control" Oct 21: A current fluids related study in ASE Sphere laboratory reports due during the week of October 26 (two weeks from date of lab study) Oct 28: 9 Group Project and Proposal Writing Nov 4: Group Proposal Presentations (proposals due in class) Nov 11: 10 The Delta Wing Nov 18: A current fluids related study in ASE Nov 25: A current fluids related study in ASE Thanksgiving Recess November 26–28. Dec 2: Group Project Final Presentations (reports officially due that Friday by 5pm) Last Day of Class December 4. Cheating Policy: Students who violate University rules on scholastic dishonesty are subject to disciplinary penalties, including the possibility of failure in the course and dismissal from the University. Since dishonesty harms the individual, fellow students, and the integrity of the University, policies on scholastic dishonesty will be strictly enforced. Special Notes: The University of Texas at Austin provides upon request appropriate academic adjustments for qualified students with disabilities. For more information, contact the Office of the Dean of Students at 471-6259, 471-4641 TDD or the College of Engineering Director of Students with Disabilities at 471-4321.

Evaluation: Note that the Measurement and Evaluation Center forms for the College of Engineering will be used during the last week of class to evaluate the course and the instructor. Prepared by: Prof. Charles E. Tinney Date: August 5, 2009