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Experimental investigation and numerical simulation ofsmall-scale gas-liquid two-phase pulse detonation engine(PDF)

《南京理工大学学报》（自然科学版）[ISSN:1005-9830/CN:32-1397/N]

Issue:
2017年01期
Page:
1-
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Info

Title:
Experimental investigation and numerical simulation ofsmall-scale gas-liquid two-phase pulse detonation engine
Author(s):
Pan Xiao; Weng Chunsheng
National Key Lab of Transient Physics,Nanjing University of Science and Technology,Nanjing 210094,China
Keywords:
small-scale pulse detonation engine;  gas-liquid two-phase;  multi-cycle detonation experiment;  numerical simulation
PACS:
V231.22
DOI:
10.14177/j.cnki.32-1397n.2017.41.01.001
Abstract:
To explore the working characteristics of small-scale pulse detonation engine(SPDE),a series of experiments and numerical simulations are carried out on SPDE.A gas-liquid small-scale pulse detonation rocket engine is designed with 30 mm inner diameter and a total length of 900 mm.The characteristics of pressure wave in detonation tube at different ignition frequencies are studied by using gasoline as fuel.Multi-cycle detonation experiments show that SPDE can work stably and continuously under the frequency range of 10～40 Hz,and the average pressure of detonation wave is between 2～3 MPa; with the increase of frequency,the peak pressure and the average pressure are reduced.Two-dimensional CE/SE method is used to simulate the propagation characteristics of detonation wave in gas-liquid two-phase SPDE,and the calculation results are in good agreement with the experimental results.The research results are significant to the study of SPDE atomization,mixing and the realization of high frequency SPDE.

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Last Update: 2017-02-28