AeroRocket Subsonic Wind Tunnel Course

How to Use the AeroRocket Subsonic Wind Tunnel

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Copyright 1999-2015 John Cipolla/AeroRocket. All rights reserved

HTV-3X in the AeroRocket wind tunnel
HTV-3X in the AeroRocket wind tunnel at 15 degrees AOA
 

WindTunnelCourse illustrates step-by-step how to compute aerodynamic coefficients like CD, CL, L/D, XCP, Cn, Ca, Cm, Cna and CMa from voltages generated by the Force Measurement System's DRAG and LIFT load cells. Also, detailed mechanical drawings, wind tunnel test procedures and description of various wind tunnel components not previously described by the WindTunnelPlans.pdf file is provided. In addition, a QuickTime video describing the AeroRocket subsonic wind tunnel in more detail is provided as part of the package. The following provides a very brief description of what is included in the WindTunnelCourse.zip download.
 

I. CourseContents.rtf (2.55KB), 1 page
 

II. WindTunnelCourse.pdf (2.0MB), 24 pages
1. Wind Tunnel Description


2. Drag and Lift Measurement


3. Center of Pressure (XCP) Measurement
a. Mechanical design of the Force Measurement System
b. Procedure for measuring center of pressure location
c. Description of the AeroRocket Minimum Friction Caliper for measuring center of pressure location


4. Force Measurement System
a. Sample methods to compute lift and drag coefficients

5. Wind Tunnel Calibration
a. Using a circular plate to determine wind tunnel accuracy

6. Mounting Wind Tunnel Models on Stings


7. General Procedure for Measuring Drag and Lift


8. Discussion of Laminar Flow


9. Pitot Tube and Velocity Measurement

10. Wind Tunnel Experiments
a. Drag Measurements
b. Flow Visualization
c. Lift Slope Coefficient Measurements

11. Appendix of Information
a. Force Measurement System Free Body Diagram

b. CP Location Low Friction Caliper construction details
c. Force Measurement System Free Body Analysis Used to Determine Drag (CD) and Lift (CL) Coefficients
d. X-30 NASP AeroRocket Wind Tunnel Test Results. Includes CD, CL, L/D, XCP, Cn, Ca, Cm, Cna, CMa
e. Smoke Visualization Wind Tunnel Testing. Complete description and dimensions of the system
f. Testing the HTV-3X in the AeroRocket wind tunnel
g. Testing Models Using a Rear-Mounted Sting


III. WindTunnelPlans.pdf, (552KB), 19 pages Latest version of the AeroRocket wind tunnel plans
 

IV. AeroTunnelMovie.mov, (1.6MB) QuickTime video (2 minutes) describing the AeroRocket wind tunnel
a. Requires QuickTime from Apple Computer and works on PC and Mac computers.

V. WindTunnelCost.pdf (100KB), 1 page. Complete Wind Tunnel Component sources and cost list.

AeroRocket Subsonic Wind Tunnel
Complete AeroRocket Subsonic Wind Tunnel System

Center of Pressure Measurement
Center of Pressure Testing in the AeroRocket Wind Tunnel

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