PROPOSAL REQUIREMENTS
Delivrables:
- The technical proposal document
- The 3D-Model (file format IGES, STEP, STL)
- Mockup :
- a. Dimension :
- Maximum Span: 26.0 cm
- Maximum blocage ratio: 1.1%
- Surface roughness : no restriction as the Re is low
- Material : no restriction (wood, aluminum, resin, …) but should resist to the mechanical and aerodynamic loads
- The mockup must be tested to withstand two times the expected loads in the wind tunnel. Pictures of tests must be provided.
- The model can be supported by two different mechanisms:
- A sting supported by two screws allows accurate angle of attack adjustment with a variation of 17deg.
- The support coming from the bottom wall offers a lower blockage ration. The range of angle of attack is 34deg.
The detail of the interface will depend of the choice of the balance (range) and should be discuss later.
- a. Dimension :
- Poster
- a. Format : A1
- b. The poster must display:
- i. Three-view drawing
- ii. Name of the project
- iii. Name of the team
- iv. List of every members of the team
- v. Paragraph about: Costs, Structure, Landing gear, Power plant, Equipment, External dimensions, Areas, Weight § loading, Performance
Test period
The wind tunnel test campaign will be determined with the winner.
S-1 Wind Tunnel
The VKI supersonic/transonic wind tunnel S-1 (Figure 1) is a continuous closed circuit facility of the Ackeret type, driven by a 615 kW axial flow compressor. Two 0.4 m x 0.36 m test sections are available: contoured nozzles with M = 2.0 and a slotted transonic section with variable Mach number, from 0.3 to 1.05. A typical unit Reynolds number is 4 x 106/m. The test section contains a three-degree-of-freedom traversing mechanism for model and/or probe support, as well as a variable incidence mechanism (up to 34 degrees).
Test conditions
