Numerical Simulation of the Nozzle Angles Effect on the Pressure at Thrustwall and Nozzle Outlet of PDE

Zhi Wu Wang; Kun Zhang; Long Xi Zheng

doi:10.4028/www.scientific.net/AMM.705.92

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 705Numerical Simulation of the Nozzle Angles Effect...

Numerical Simulation of the Nozzle Angles Effect on the Pressure at Thrustwall and Nozzle Outlet of PDE

Abstract:

In order to investigate the effects of nozzles with different angles on PDE performance, PDE with nozzles of different convergent and divergent angles were simulated and propane-air mixture was used. The simulation results indicated that the effects of nozzles with different angles on the pressure at the thrustwall of PDE and nozzle outlet were not the same. The pressure at the thrustwall and nozzle outlet of PDE with convergent nozzles was higher than that with divergent nozzles, and the pressure peak appeared earlier in the case of convergent nozzles. The peak value of the pressure at the nozzle outlet increased and appeared ahead of time as the convergent angle increased. The peak value of the pressure at the nozzle outlet increased and the evacuation time was prolonged with convergent nozzles. The pressure at the nozzle outlet dropped quickly and the evacuation time was shortened with divergent nozzles.

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Periodical:

Applied Mechanics and Materials (Volume 705)

Pages:

92-95

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.705.92

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Online since:

December 2014

Authors:

Zhi Wu Wang, Kun Zhang, Long Xi Zheng

Keywords:

Convergent Angle, Divergent Angle, Nozzle, Pressure, Pulse Detonation Engine

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