ENME404-24S2 (C) Semester Two 2024

# Aerodynamics and Ground Vehicle Dynamics

15 points

Details:
 Start Date: Monday, 15 July 2024 End Date: Sunday, 10 November 2024
Withdrawal Dates
Last Day to withdraw from this course:
• Without financial penalty (full fee refund): Sunday, 28 July 2024
• Without academic penalty (including no fee refund): Sunday, 29 September 2024

## Description

Aerofoil theory; Flat plate lift and drag; Aerofoil lift and drag; Predicting aerofoil data with Xfoil; Boundary layer theory; Aircraft performance; Stability and control in flight; Wind tunnel testing; Glider design, build and test; Propeller design; BEMT method; High speed (compressibility) effects; Wheeled ground vehicles: load transfer, tyre design, traction and rolling resistance, aerodynamics, suspension, steering, and potential flow.

This course teaches the fundamental understanding, and some of the design skills, required for aerodynamic design in the aviation and automotive industries, with relevance also to the wind and hydroelectric power industries. The course strengthens skills required for almost any industrial application with moving fluids.

For the Mechanical Engineering Aerospace Minor, students must select two of the following options: ENME404, ENME460, ENGR401, and Special Topics 2024 ENME422 and ENME488.

## Learning Outcomes

• Washington Accord (V4) Summary of Graduate Attributes attained in this course:
 WA1 – Engineering Knowledge
 WA2 – Problem Analysis
 WA3 – Design/Development of Solutions
 WA4 – Investigation
 WA5 – Tool Usage
 WA8 – Individual and Collaborative Teamwork
 WA9 – Communication

• Course topics with Learning Outcomes (and Washington Accord (WA) and UC Graduate Attributes) identified.

1. Forces and moments on aerodynamic surfaces
1.1. Solid grasp of the fluid dynamics underlying aerodynamics and methods for computing the pressure distributions and total lift, drag and moments (WA1, WA2)
1.2. Able to find and manipulate empirical data to estimate drag and lift on simple bodies (WA2, WA3)
1.3. Knowledge of the relationship between flying vehicle configuration, control surface layout and stability (WA2)
2. Fixed-wing aircraft: performance, and stability and control
2.1. Ability to choose an appropriate airfoil for a specific application (WA3) (EIE3)
2.2. Ability to design a body enclosing a given envelope for low aerodynamic drag (WA3, WA4) (EIE3)
2.3. Ability to design and construct simple lightweight hand-launched gliders (WA3, WA4)
2.4. Designing and constructing optimal systems with limited resources (WA3, WA4) (EIE3)
2.5. Ability to estimate thrust, power, range, endurance and speed in flight (WA4, WA5) (EIE4)
3. Compressible flow and propulsion
3.1. Ability to calculate basic parameters in adiabatic duct flow relevant to propulsion nozzles, and properties upstream and downstream of normal shock waves (WA4, WA5) (EIE4)
4. Fixed-wing transonic and supersonic flight
4.1. Knowledge of the basic design characteristics of fixed-wing craft flying at Mach numbers greater than 0.3 (WA2)
5. Ground vehicle (GV) dynamics
5.1. Knowledge of the fundamental forces governing GV performance in acceleration, braking and cornering, their relationship to load distribution and tyre properties (WA2)
6. Laboratories / Practical exercises
6.1. Wind tunnel operation.
6.2. Construction and optimization of simple hand-launched gliders, guided by calculation and experience with prototypes (WA2, WA3, WA9, WA10) (EIE3)
6.3. Communicating complex concepts to peers both in written and oral form (WA10) (EIE2)

This course will provide students with an opportunity to develop the Graduate Attributes specified below:

 Employable, innovative and enterprising Students will develop key skills and attributes sought by employers that can be used in a range of applications.

## Prerequisites

(1) ENME304 or ENME314; and (2) EMTH271, ENME203, ENME207 and ENME221.

## Timetable 2024

Students must attend one activity from each section.

Activity Day Time Location Weeks Lecture A 01 Monday 11:00 - 12:00 A3 Lecture Theatre 15 Jul - 25 Aug 9 Sep - 20 Oct Lecture B 01 Wednesday 13:00 - 14:00 Rehua 005 15 Jul - 25 Aug 9 Sep - 20 Oct Lecture C 01 Thursday 11:00 - 12:00 A3 Lecture Theatre 15 Jul - 25 Aug 9 Sep - 20 Oct Lab A 01 Monday 09:00 - 10:00 Mech 120 Wind Tunnel Lab 29 Jul - 4 Aug 02 Tuesday 09:00 - 10:00 Mech 120 Wind Tunnel Lab 29 Jul - 4 Aug 03 Tuesday 10:00 - 11:00 Mech 120 Wind Tunnel Lab 29 Jul - 4 Aug 04 Wednesday 09:00 - 10:00 Mech 120 Wind Tunnel Lab 29 Jul - 4 Aug 05 Thursday 09:00 - 10:00 Mech 120 Wind Tunnel Lab 29 Jul - 4 Aug 06 Thursday 10:00 - 11:00 Mech 120 Wind Tunnel Lab 29 Jul - 4 Aug 07 Friday 09:00 - 10:00 Mech 120 Wind Tunnel Lab 29 Jul - 4 Aug 08 Friday 10:00 - 11:00 Mech 120 Wind Tunnel Lab 29 Jul - 4 Aug 09 Monday 09:00 - 10:00 Mech 120 Wind Tunnel Lab 5 Aug - 11 Aug 10 Tuesday 09:00 - 10:00 Mech 120 Wind Tunnel Lab 5 Aug - 11 Aug 11 Tuesday 10:00 - 11:00 Mech 120 Wind Tunnel Lab 5 Aug - 11 Aug 12 Wednesday 09:00 - 10:00 Mech 120 Wind Tunnel Lab 5 Aug - 11 Aug 13 Thursday 09:00 - 10:00 Mech 120 Wind Tunnel Lab 5 Aug - 11 Aug 14 Thursday 10:00 - 11:00 Mech 120 Wind Tunnel Lab 5 Aug - 11 Aug 15 Friday 09:00 - 10:00 Mech 120 Wind Tunnel Lab 5 Aug - 11 Aug

## Course Coordinator

For further information see Mechanical Engineering Head of Department

## Assessment

Assessment Due Date Percentage
Students selecting the self-chosen project option
Self-chosen project: Title 29 Jul 2024
Self-chosen project: Active element plan 12 Aug 2024
Self-chosen project: Brief written status update 11 Sep 2024
Self-chosen project: Report 07 Oct 2024 35%
Students not selecting the self-chosen project option:
Default project option: Wind tunnel lab report 22 Aug 2024 10%
Default project option: Wing planform design report 07 Oct 2024 15%
Default project option: Ground vehicle modelling report 14 Oct 2024 10%
Glider report 27 Sep 2024 15%
Final exam 50%

## Indicative Fees

Domestic fee \$1,197.00

International fee \$6,000.00

* All fees are inclusive of NZ GST or any equivalent overseas tax, and do not include any programme level discount or additional course-related expenses.

For further information see Mechanical Engineering .

## All ENME404 Occurrences

• ENME404-24S2 (C) Semester Two 2024