Across
- 3. Computer-based not physical or real
- 5. Smooth curved shape that reduces air resistance
- 7. Large devices that create wind in tunnels
- 9. Related to how air flows around objects
- 10. Computer software used to model airflow in design
- 12. Type of road that moves under stationary vehicle
- 13. Spinning tornado-like patterns of air
- 16. Process of evaluating design performance
- 17. Measure of performance versus energy used
- 18. Virtual testing done on computers
- 19. Air resistance that opposes motion and wastes fuel
- 20. Substance used to reveal airflow patterns
Down
- 1. Physical model built for testing
- 2. Force per unit area created by airflow
- 4. Upward force that keeps aircraft airborne
- 6. Enclosed facility where wind testing occurs
- 8. Upward-curving tip that reduces wingtip drag
- 11. Main body tube of an aircraft
- 14. Repeated testing with small modifications
- 15. Complete external surface of a car