Aerodynamics Technology 30 Hour - Part 1 Student Workbook · Aerodynamics Technology (30 hour) -...

Aerodynamics Technology30 Hour - Part 1Student Workbook

Issue: US180/30/2a-IQ-0201a

Copyright 2004, LJ Technical Systems. No part of thisPublication may be adapted or reproduced in any material form,without the prior written permission of LJ Technical Systems.

Lesson Module: 73.18/3

Written by: LJ Technical Dept

Aerodynamics Technology (30 hour) - 73.18 Student Workbook

LJ Technical Systems SW1.1

Assignment 1 Introduction to Aerodynamics

CUT FOLD

Rectangle A

Rectangle B

Fold

Assignment 3 Introduction to Drag

Record the reading on the DRAG meter in the table, every time you add a mass.

Mass (g) Drag Meter Reading (V)0

20406080100

Table 3.1 - Drag meter reading in V



Plot a graph of volts against grams. Use graph 3.1 for this.

0 . 5

1

2

3

4

5

6

7

8

9

1 0

0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 5 5 6 0 6 5 7 0 7 5 8 0 8 5 9 0 9 5 1 0 0

0

( V )

( g )

1 . 5

2 . 5

3 . 5

4 . 5

5 . 5

6 . 5

7 . 5

8 . 5

9 . 5

R A N G E 4

Graph 3.1

Assignment 4 Computers and the Wind Tunnel

Using table 4.1, write down the value of drag shown on the computer screen for each dragpanel. Also, enter the height and width of each panel and calculate the area.

Panel Height(Inches)

Width(Inches)

Area(Square Inches)

Drag(oz)

ABCDEF



Plot a graph of facing area against drag for the measurements you have made.

Graph 4.1 - Facing area against drag

Assignment 5 Dragging On

Using table 5.1, write down the value of drag shown on the computer screen for each vehicle:

Vehicle Type Drag (oz)Station WagonSedanSports carTable 5.1 - Drag caused by various vehicles

Assignment 6 Keeping Vehicles on the Ground

Record the values of downforce in table 6.1:

Mass (g) Downforce (oz)020406080100

Table 6.1 - Mass creating downforce



Using the values in table 6.1, plot a graph of downforce in ounces, against massin grams.

Graph 6.1 - Graph of mass against downforce

Record the values of downforce and drag, when the angle of attack is -15°, in table 6.2:

Wind Speed (mph) DownForce (oz) Drag (oz)051015202530

Table 6.2 - Downforce and drag of a spoiler at 15°

Using the values in table 6.2, plot a graph of wind speed (mph) against downforce (oz), andwind speed against drag.

Graph 6.2a - Wind speed against downforce Graph 6.2b - Wind speed against drag



Assignment 7 Vehicle Design

Enter the road test results in table 7.1

Test Results for: Initial Vehicle Design Predefined Criteria VehicleDrag Total¼ Mile Top Speed¼ Mile TimeMpgCruising Range

Table 7.1 - Road test results for two vehicle designs

Assignment 8 Meeting a Vehicle Design Criteria

Enter the choice of components for your car in table 8.1

Component ChoiceChassisEngineTransmissionFuel TankSteering and SuspensionTires and BrakesTable 8.1 - Component list for vehicle design

Enter the information from the report for your car in table 8.2.

Cruising RangeMaximum SpeedSeating CapacityEngine LocationTable 8.2 - Vehicle performance information



Assignment 9 Stick to the Ground

Enter the drag and lift values at a 25 mph wind speed for the standard car and spoiler car intable 9.1.

Standard Car Car with SpoilerDrag (oz)Downforce (oz)

Table 9.1 - Comparing a car with and without a spoiler

Assignment 12 Angles of Attack

Enter the lift values, for the flat, cambered, and symmetrical wing in table 12.1

Angle (°) Lift fromFlat Wing (oz)

Lift fromCambered Wing (oz)

Lift fromSymmetrical Wing

(oz)010203040506070

Table 12.1 - Lift for different wings at various angle of attack

Graph 12.1 - Lift against angle of attack for various wings



Assignment 14 Aspect Ratio and Span

Enter your lift values for the constant chord length wing in table 14.1

CONSTANT (2") CHORD LENGTH, WINGWING SPAN" LIFT AT 5 mph (oz) LIFT AT 25 mph (oz)

4567

Table 14.1 - Constant chord length wing

Enter your lift values for the constant span wing in table 14.2

CONSTANT (3") WING SPANCHORD LENGTH" LIFT AT 5 mph (oz) LIFT AT 25 mph (oz)

3456

Table 14.2 - Constant wing span wing

Aerodynamics Technology30 Hour - Part 2Student Workbook

Issue: US180/30/2b-IQ-0201a

Copyright 2004, LJ Technical Systems. No part of thisPublication may be adapted or reproduced in any material form,without the prior written permission of LJ Technical Systems.

Lesson Module: 73.18/3

Written by: LJ Technical Dept



Assignment 16 Turbulent Air Around a Wing

Enter the lift values for the flat wing in table 16.1, and plot a graph of the results:

Angle of Attack (°) Lift (oz)0

10203040506070

Table 16.1 - Identifying the stall point

Graph 16.1 - Angle of attack against lift



Assignment 17 Basic Aircraft Design - Paper Plane Manta Ray Template:



Record the control surface names on the diagram of the aircraft.

Assignment 19 Propeller Power

Complete the table for force generated by 2 and 4 blade propellers:

Wind Speed (mph) Force from 2blades (oz)

Force from 4 blades(oz)

51015202530

Table 19.1 - Force produced by different blades



Assignment 22 Aerodynamics and Aircraft - Summary

Complete the grid and identify the word in the shaded squares:

1

2

3

4

5

6

7

8

The shaded squares contain the word _________________.

Plot a graph of the average wind speed, throughout the year, on graph 22.1:

Graph 22.1 Average wind speed throughout the year

Assignment 23 Building Design

Enter the drag readings for the square shaped building in table 23.1:

Building Angle (°) Drag (oz)0153045

Table 23.1 - Drag on square shaped building



Assignment 24 Solving Building Design Problems

Write down the drag reading on each of the cylinders in table 24.1:

Height (Inches) Drag (oz)1234

Table 24.1 - Drag from cylindrical structures

Assignment 25 Bridges

The bridge section becomes unstable at .........mph.

Write down the wind speed reading for the bridge section when it oscillates uncontrollably,with the aerodynamic panels attached:

With the leading edge panel attached: .............mph

With both the leading edge and trailing edge panels attached: ............. mph

Assignment 26 Bridges with Problems

Design BriefWrite down the design brief in your own words.

...........................................................................................................................................................................

...........................................................................................................................................................................

...........................................................................................................................................................................

...........................................................................................................................................................................

...........................................................................................................................................................................

The total surface area of the bridge section (excluding the end sections) is:___________.

Alternative SolutionsWrite down a fifth alternative solution.

...........................................................................................................................................................................

...........................................................................................................................................................................



Choice of SolutionGive the advantages and disadvantages for possible solution.1) Alter the leading and trailing edges of the road surface....................................................................................................................................................................................................................................................................................................................................................................2) Enclose the leading and trailing section in semi-cylinders....................................................................................................................................................................................................................................................................................................................................................................3) Cover the road in a semi-cylinder....................................................................................................................................................................................................................................................................................................................................................................

4) Enclose the entire bridge in a box section.................................................................................................................................................................................................................................................................................................................................................................... 5) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................



Test and EvaluationDraw on each alternative solution the airflow around the bridge section.

Assignment 28 Designing a Flying Machine

Make a list of alternative solutions, together with their advantages and disadvantages,in table 28.1:

Alternative Solutions:1)2)3)4)Table 28.1 – Alternative Solutions



Write down some of your choices of solutions from the alternatives you have considered.

Solution 1 Solution 2 Solution 3 Solution 4

Calculate the weight of the materials you are going to use.

DESCRIPTION WEIGHT1. Preformed fuselage2. Card3. Elastic band4. Propeller5. Wing/tail template6. Balloons7. Sticky tape8. Undercarriage9. Thread

TOTAL WEIGHT OF MATERIALS:..........including glue,tape and elastic band.

Make any notes that will be useful:......................................................................................................................................................................................................................................................................................................................................................

Sketch the plane you are going to build, labeling the important features.



Assignment 30 Fantastic Future, Fancy a Job ?

Sketch the layout of your magazine article in the space provided:



Create the article within the area shown:

Aerodynamics Technology 30 Hour - Part 1 Student Workbook · Aerodynamics Technology (30 hour) -...

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