Internal Flow Dynamics in a Valveless Airbreathing Pulse Detonation Engine

Ma, Fenglong; Choi, Jun Woo; Yang, Vigor

doi:10.2514/1.29957

Cited by 20 publications

(6 citation statements)

References 26 publications

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“…The valve is closed during detonation initiation and propagation, but remains open during the filling and purging stages. In the valveless design, the isolation between the inlet and the combustor is achieved through a gasdynamic means [25,26]. Such design is mechanically simpler and circumvents the disadvantage associated with airflow stagnation in the valved design.…”

Section: System Configuration and Operationmentioning

confidence: 99%

Propulsive Performance of Airbreathing Pulse Detonation Engines

Choi

Yang

2006

Journal of Propulsion and Power

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121

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His research interests include computational fluid dynamics, parallel computing and system, shock-and detonation-wave dynamics, chemically reacting flow, high-speed flow, and modeling and performance analysis of various propulsion systems such as ramjets, scramjets, and pulse detonation engines. He is the author or coauthor of more than 40 technical papers and book chapters in his research fields. He was the recipient of the 2004 AIAA best paper award in airbreathing propulsion. He has been serving as an active reviewer for several journals and also serves as a system manager for a large in-house Linux cluster at Pennsylvania State University. He is a member of AIAA and the Combustion Institute.

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Section: System Configuration and Operationmentioning

confidence: 99%

Propulsive Performance of Airbreathing Pulse Detonation Engines

Choi

Yang

2006

Journal of Propulsion and Power

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121

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“…They observed that the initial conditions in simulations are the significant effect on overall performance. Ma et al [83] numerically studied internal flow dynamics of pulse detonation engine, which used ethylene as a combustible fuel. The detonation wave dynamics and flow evaluation were simulated.…”

Section: Reviews On Computational Analysismentioning

confidence: 99%

“…Their results indicated that NO formation in pulse detonation engine is very high for stoichiometric mixture. Ma et al [83] studied numerically internal flow dynamics in a valveless air-breathing pulse detonation engine operating on ethylene fuel. Their calculated pressure histories and gross specific impulse of 1215 s show good agreement with experimental results.…”

Section: Reviews On Computational Analysismentioning

confidence: 99%

Review on Recent Advances in Pulse Detonation Engines

Pandey

Debnath

2016

Journal of Combustion

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Pulse detonation engines (PDEs) are new exciting propulsion technologies for future propulsion applications. The operating cycles of PDE consist of fuel-air mixture, combustion, blowdown, and purging. The combustion process in pulse detonation engine is the most important phenomenon as it produces reliable and repeatable detonation waves. The detonation wave initiation in detonation tube in practical system is a combination of multistage combustion phenomena. Detonation combustion causes rapid burning of fuel-air mixture, which is a thousand times faster than deflagration mode of combustion process. PDE utilizes repetitive detonation wave to produce propulsion thrust. In the present paper, detailed review of various experimental studies and computational analysis addressing the detonation mode of combustion in pulse detonation engines are discussed. The effect of different parameters on the improvement of propulsion performance of pulse detonation engine has been presented in detail in this research paper. It is observed that the design of detonation wave flow path in detonation tube, ejectors at exit section of detonation tube, and operating parameters such as Mach numbers are mainly responsible for improving the propulsion performance of PDE. In the present review work, further scope of research in this area has also been suggested.

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“…Although experimental investigations on interactions between the inlet and pulse outflow conditions have been carried out by several research institutes [39][40][41][42], their research has focused on the valved PDE in which all products were forced to exhaust through the tube exit because the valve opening was completely closed during a certain period of each cycle. The valveless PDE system is mechanically simpler and circumvents the disadvantages associated with airflow stagnation during the valve-closed period [43]. However, a disadvantage is that the strong back-pressure wave may propagate freely into the upstream plenum and have an adverse impact on operation of the upstream component compared to the valved configuration.…”

Section: Introductionmentioning

confidence: 99%