1. AE 433 – Aerospace Propulsion Daniel J. Bodony Department of Aerospace Engineering

2. Basic goals of this course Introduce a variety of aerospace-relevant propulsion systems – Propellers – Gas turbines (turbo{jet,fan,prop}) – Higher performance systems ([sc]ramjet) Develop quantitative analysis tools for predicting performance Develop “rule-of-thumb” ideas and some intuition of orders-of-magnitude AE433 Fall 2015

3. Fundamental concept of propulsion AE433 Fall 2015 (Efficient) conversion of potential energy into vehicle kinetic energy (Efficient) conversion of potential energy into vehicle kinetic energy

4. Possible potential energy sources AE433 Fall 2015 Human

5. Possible potential energy sources AE433 Fall 2015 Alphonse Pénaud’s Planaphore, 1871 strain energy (whale bone) Reproduction of Launoy & Bienvenue helicopter, 1784 Based on Chinese design from A.D. 4-5.

6. Possible potential energy sources AE433 Fall 2015 Alphonse Pénaud’s Planaphore, 1871 strain energy

7. Possible potential energy sources AE433 Fall 2015 SR-71 XCOR Methane (l) chemical (liquid)

8. Possible potential energy sources AE433 Fall 2015 chemical (solid)

9. Other potential energy sources Electrical Nuclear Solar Radio-isotope … AE433 Fall 2015 Sonex E-flight Solar

10. Commonalities Of the types of propulsion systems we just saw there were only three main methods of producing thrust – Rotating propellers – Ejection of fluid through nozzles – Ejection of high-speed particles (see AE 435) Our focus for this semester will be on the first two of these items, and on their integration AE433 Fall 2015

11. We Will Not Cover Chemical rockets – AE 434 – liquid – solid – hybrid Electric propulsion – AE 435 – ion thrusters – Hall thrusters – … Reciprocating engines – ME 403 AE433 Fall 2015

12. Two Propulsion Systems Propeller-basedNozzle-based AE433 Fall 2015

13. Discussion Outline Propeller-based propulsion – Geometry and design – Predictive theories (actuator {disc,line}; blade element) Axial turbine-based propulsion – Geometry and design – Component analysis (ideal and “real”) – Component integration and matching AE433 Fall 2015