Parametric Study of High Frequency Pulse Detonation Tubes
- Cutler, Anderw D.
- July 20, 2008.
- Physical Description:
- 1 electronic document
- Restrictions on Access:
- Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
- This paper describes development of high frequency pulse detonation tubes similar to a small pulse detonation engine (PDE). A high-speed valve injects a charge of a mixture of fuel and air at rates of up to 1000 Hz into a constant area tube closed at one end. The reactants detonate in the tube and the products exit as a pulsed jet. High frequency pressure transducers are used to monitor the pressure fluctuations in the device and thrust is measured with a balance. The effects of injection frequency, fuel and air flow rates, tube length, and injection location are considered. Both H2 and C2H4 fuels are considered. Optimum (maximum specific thrust) fuel-air compositions and resonant frequencies are identified. Results are compared to PDE calculations. Design rules are postulated and applications to aerodynamic flow control and propulsion are discussed.
- Other Subject(s):
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 20080032440.
44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit; 20-23 Jul. 2008; Hartford, CT; United States.
- No Copyright.
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