Wind Tunnel Model Workflow

1

Start with the provided Prusa project

In Microsoft Teams, download and open the provided Prusa project at the location below. Replace the example model with your model. Keep the example project settings as your starting point.

Teams location

Shared› General› 4. Resources› Wind Tunnel› 3D Printing

Or they can be downloaded here:

2

Add supports and print

Use PrusaSlicer's Paint-on Supports feature to place supports wherever they are needed. Use the example photo below as your starting point, then print the model.

PrusaSlicer example showing painted support regions highlighted in blue on a wind tunnel model — Example starting point: blue areas indicate where supports have been painted onto the model.

3

Label the printed model

Use a visible permanent marker (Sharpie) to write all of the following information directly on the model:

Your section — for example, M1A
Your version number, denoted with V — for example, V1
Your control deflections, using the notation shown below

ElevatorsE -10

FlapsF30

RudderR10

AileronsA -30

Example red wind tunnel model labeled with section, version, and control-deflection information in visible permanent marker — Example of a clearly labeled model. Make every identifier easy to see and read.

4

Deliver the model

Place your model on the shelves in the Low-Speed Wind Tunnel.

Top shelves: models that have not yet been tested
Bottom shelves: models that have already been tested
Please collect your tested models. Models left behind will be thrown away.

Low-Speed Wind Tunnel shelves showing models to be tested on the upper shelves and completed models on the lower shelves — Place untested models on the upper shelves. Retrieve tested models from the lower shelves.

5

Retrieve your test data

Your tested model data will be available in Microsoft Teams within two business days.

Testing will be conducted from −10° to 26° in 2° increments.

Teams location

General› 9. ----- WIND TUNNEL DATA EXCHANGE

File naming convention

Your filename will combine the labels written on your model.

Example: M1A_V1_En10.mat

Clean configurations (no control deflections) and rudder-deflection configurations will also be tested in a Beta sweep. These files are denoted by a B at the end of the filename and must be reduced using a separate tool.

Beta-sweep example: M1A_V1_B.mat

6

Analyze and save your data

Use the Wind Tunnel Data Tools at JetDesign.online to analyze your results and save your wind tunnel data.

Open JetDesign.online