Study on Internal Flow Field of Series Pulsed Nozzle

Abstract:

This paper describes experimental study and numerical simulation of series pulsed nozzle. The simulation of internal flow field in nozzle with different cavity length was carried out by using CFD. The influence of chamber length on the velocity distribution and the axial velocity was analyzed. The simulation results indicate that there is a optimum rang of cavity length producing the maximum outlet velocity. The dynamic pressure of pulsed jet was also studied by using SD150 test system. The effect law of chamber length on the impact pressure of pulsed jet was analyzed. The experimental results show that the peak of hitting power reaches the maximum within a certain range of cavity length. Simulation results are in agreement with Experimental results.

• Periodical: Advanced Materials Research (Volumes 860-863)
• Pages: 1535-1541
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.860-863.1535
• Online since: December 2013
• Authors: Chuan Lin Tang, Xiao Ting He, Dong Hu, Xiao Ming Wang
• Keywords: Cavity Length, Internal Flow Field, Numerical Simulation, Series Pulsed Nozzle

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