Effect of high-pressure detonation products on fuel injection and propagation characteristics of detonation wave
The effect of high-pressure detonation products on fuel injection and propagation characteristics of detonation wave has been investigated in the form of ion voltage by varying the equivalence ratio (ER), air mass flux, and operation duration with hydrogen-air mixtures. It has been shown experimenta...
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| Format: | Article |
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KeAi Communications Co., Ltd.
2022-03-01
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| Series: | Propulsion and Power Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212540X22000141 |
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| author | Gaoyang Ge Li Deng Hu Ma Zhenjuan Xia Xiao Liu Changsheng Zhou |
| author_facet | Gaoyang Ge Li Deng Hu Ma Zhenjuan Xia Xiao Liu Changsheng Zhou |
| author_sort | Gaoyang Ge |
| collection | DOAJ |
| description | The effect of high-pressure detonation products on fuel injection and propagation characteristics of detonation wave has been investigated in the form of ion voltage by varying the equivalence ratio (ER), air mass flux, and operation duration with hydrogen-air mixtures. It has been shown experimentally that the ion voltage decays gradually during the initial stage of rotating detonation wave (RDW). The attenuation of ion voltage is a general phenomenon, and the decay rate of ion voltage and its peak value of the trough state are related to the equivalence ratio and air mass flux. The analysis of interaction between the combustor and hydrogen plenum indicates that the feedback of high-pressure detonation products leads to the attenuation of ion voltage. In addition, the long-duration tests show that the ion voltage will recover to a steady state with the extension of reaction time, when the purgation (products leaving plenums) of detonation products is greater than feedback (products entering plenums) of detonation products in the hydrogen plenum. The recovery of ion voltage starts earlier at the higher equivalence ratio and air mass flux, and the peak value of ion voltage in the steady state also increases with the increase of equivalence ratio and air mass flux. A low frequency oscillation about 10–12 Hz occurs in the RDW at some operation conditions. This low frequency oscillation is related to the interaction between the combustor and hydrogen plenum, and can be eliminated by either increasing the equivalence ratio or decreasing the air mass flux. |
| first_indexed | 2024-03-12T18:28:50Z |
| format | Article |
| id | doaj.art-3b4c5537c1064df7ae4e5b405ad95511 |
| institution | Directory Open Access Journal |
| issn | 2212-540X |
| language | English |
| last_indexed | 2024-03-12T18:28:50Z |
| publishDate | 2022-03-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Propulsion and Power Research |
| spelling | doaj.art-3b4c5537c1064df7ae4e5b405ad955112023-08-02T08:24:30ZengKeAi Communications Co., Ltd.Propulsion and Power Research2212-540X2022-03-011115873Effect of high-pressure detonation products on fuel injection and propagation characteristics of detonation waveGaoyang Ge0Li Deng1Hu Ma2Zhenjuan Xia3Xiao Liu4Changsheng Zhou5School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, ChinaInstitute of Chemical Materials, China Academy of Engineering Physics, Mianyang, Sichuan, 621999, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, China; Corresponding author.School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, ChinaCollege of Power and Energy Engineering, Harbin Engineering University, Harbin, Heilongjiang, 150001, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, ChinaThe effect of high-pressure detonation products on fuel injection and propagation characteristics of detonation wave has been investigated in the form of ion voltage by varying the equivalence ratio (ER), air mass flux, and operation duration with hydrogen-air mixtures. It has been shown experimentally that the ion voltage decays gradually during the initial stage of rotating detonation wave (RDW). The attenuation of ion voltage is a general phenomenon, and the decay rate of ion voltage and its peak value of the trough state are related to the equivalence ratio and air mass flux. The analysis of interaction between the combustor and hydrogen plenum indicates that the feedback of high-pressure detonation products leads to the attenuation of ion voltage. In addition, the long-duration tests show that the ion voltage will recover to a steady state with the extension of reaction time, when the purgation (products leaving plenums) of detonation products is greater than feedback (products entering plenums) of detonation products in the hydrogen plenum. The recovery of ion voltage starts earlier at the higher equivalence ratio and air mass flux, and the peak value of ion voltage in the steady state also increases with the increase of equivalence ratio and air mass flux. A low frequency oscillation about 10–12 Hz occurs in the RDW at some operation conditions. This low frequency oscillation is related to the interaction between the combustor and hydrogen plenum, and can be eliminated by either increasing the equivalence ratio or decreasing the air mass flux.http://www.sciencedirect.com/science/article/pii/S2212540X22000141High-pressure detonation productsIon voltageFeedbackPurgationLong-duration testLow frequency oscillation |
| spellingShingle | Gaoyang Ge Li Deng Hu Ma Zhenjuan Xia Xiao Liu Changsheng Zhou Effect of high-pressure detonation products on fuel injection and propagation characteristics of detonation wave Propulsion and Power Research High-pressure detonation products Ion voltage Feedback Purgation Long-duration test Low frequency oscillation |
| title | Effect of high-pressure detonation products on fuel injection and propagation characteristics of detonation wave |
| title_full | Effect of high-pressure detonation products on fuel injection and propagation characteristics of detonation wave |
| title_fullStr | Effect of high-pressure detonation products on fuel injection and propagation characteristics of detonation wave |
| title_full_unstemmed | Effect of high-pressure detonation products on fuel injection and propagation characteristics of detonation wave |
| title_short | Effect of high-pressure detonation products on fuel injection and propagation characteristics of detonation wave |
| title_sort | effect of high pressure detonation products on fuel injection and propagation characteristics of detonation wave |
| topic | High-pressure detonation products Ion voltage Feedback Purgation Long-duration test Low frequency oscillation |
| url | http://www.sciencedirect.com/science/article/pii/S2212540X22000141 |
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