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Bifurcation of pulsation instability in one-dimensional H2−O2 detonation with detailed reaction mechanism
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Han, Wenhu, Ma, Wenjin, Qian, Chengeng, Wen, Jennifer X. and Wang, Cheng (2019) Bifurcation of pulsation instability in one-dimensional H2−O2 detonation with detailed reaction mechanism. Physical Review Fluids, 4 (10). 103202 . doi:10.1103/PhysRevFluids.4.103202 ISSN 2469-990X.
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WRAP-Bifurcation-pulsation-instability-one-dimensional-detonation-Wen-2019.pdf - Accepted Version - Requires a PDF viewer. Download (6Mb) | Preview |
Official URL: http://dx.doi.org/10.1103/PhysRevFluids.4.103202
Abstract
Classical modes of one-dimensional (1D) detonation characterized by a simplified reaction model are reproduced by using a real chemical kinetics for the H2−O2 system with argon dilution. As Ar dilution is varied, the bifurcation points of pulsating instability are identified and a formed bifurcation diagram is compared with that obtained by the one-step reaction model. Eventually, the numerical results demonstrate that, for real detonations with detailed chemistry, the criterion of Ng et al. works well on prediction of the 1D detonation instability. Furthermore, the detonability limits are found respectively at low and high Ar dilutions. Above the high Ar dilution limit, detonations decays to the minimum level where long autoignition time and small heat release rate make reestablishment impossible for both 1D and 2D simulations. However, below the low Ar dilution limit, a 1D detonation cannot be sustained due to high instability, while the corresponding cellular detonation can propagate sustainably due to the role of transverse instability.
Item Type: | Journal Article | |||||||||||||||
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Subjects: | Q Science > QC Physics Q Science > QD Chemistry |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | |||||||||||||||
Library of Congress Subject Headings (LCSH): | Acoustic phenomena in nature , Diffusion , Detonation waves | |||||||||||||||
Journal or Publication Title: | Physical Review Fluids | |||||||||||||||
Publisher: | American Physical Society | |||||||||||||||
ISSN: | 2469-990X | |||||||||||||||
Official Date: | 29 October 2019 | |||||||||||||||
Dates: |
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Volume: | 4 | |||||||||||||||
Number: | 10 | |||||||||||||||
Article Number: | 103202 | |||||||||||||||
DOI: | 10.1103/PhysRevFluids.4.103202 | |||||||||||||||
Status: | Peer Reviewed | |||||||||||||||
Publication Status: | Published | |||||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||||||||
Copyright Holders: | ©2019 American Physical Society | |||||||||||||||
Date of first compliant deposit: | 4 August 2020 | |||||||||||||||
Date of first compliant Open Access: | 4 August 2020 | |||||||||||||||
RIOXX Funder/Project Grant: |
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