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Analysis of the Capabilities of Modern Detailed Kinetic Mechanisms to Describe the Ignition of Ultralean Hydrogen–Air Mixtures.

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Title: Analysis of the Capabilities of Modern Detailed Kinetic Mechanisms to Describe the Ignition of Ultralean Hydrogen–Air Mixtures.
Authors: Kisel', Yu. S.1 (AUTHOR) kisel@inbox.ru, Krivosheyev, P. N.1 (AUTHOR)
Source: Journal of Engineering Physics & Thermophysics. Jan2026, Vol. 99 Issue 1, p106-111. 6p.
Subjects: Reaction mechanisms (Chemistry), Combustion, Computer simulation, Temperature, Hydroxyl group, Gas mixtures
Abstract: A numerical simulation of the ignition of an ultralean (equivalence ratio of the mixture is 0.1) hydrogen–air mixture at pressures of 1 and 5 atm in the temperature range of 910–1600 K was performed using several detailed kinetic mechanisms. A comparison was made of the experimentally recorded profiles of the electron-excited OH* radical with the calculated ones. At normal pressure (1 atm), the experimental results agree well with the results of calculations based on the mechanisms of Tereza et al. and Konnov (2019), and at elevated pressure (5 atm) with the results of FFCM-2, Konnov 2019, and Tereza et al. A comparative analysis of the experimentally measured ignition delay with the results of numerical simulation demonstrated the best agreement for calculations based on the mechanisms of Tereza et al. and Konnov (2019). [ABSTRACT FROM AUTHOR]
Copyright of Journal of Engineering Physics & Thermophysics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 192688739
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PubType: Academic Journal
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  Data: Analysis of the Capabilities of Modern Detailed Kinetic Mechanisms to Describe the Ignition of Ultralean Hydrogen–Air Mixtures.
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Engineering+Physics+%26+Thermophysics%22">Journal of Engineering Physics & Thermophysics</searchLink>. Jan2026, Vol. 99 Issue 1, p106-111. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Reaction+mechanisms+%28Chemistry%29%22">Reaction mechanisms (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Combustion%22">Combustion</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature%22">Temperature</searchLink><br /><searchLink fieldCode="DE" term="%22Hydroxyl+group%22">Hydroxyl group</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+mixtures%22">Gas mixtures</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: A numerical simulation of the ignition of an ultralean (equivalence ratio of the mixture is 0.1) hydrogen–air mixture at pressures of 1 and 5 atm in the temperature range of 910–1600 K was performed using several detailed kinetic mechanisms. A comparison was made of the experimentally recorded profiles of the electron-excited OH* radical with the calculated ones. At normal pressure (1 atm), the experimental results agree well with the results of calculations based on the mechanisms of Tereza et al. and Konnov (2019), and at elevated pressure (5 atm) with the results of FFCM-2, Konnov 2019, and Tereza et al. A comparative analysis of the experimentally measured ignition delay with the results of numerical simulation demonstrated the best agreement for calculations based on the mechanisms of Tereza et al. and Konnov (2019). [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Engineering Physics & Thermophysics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10891-026-03284-6
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        Text: English
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        Type: general
      – SubjectFull: Combustion
        Type: general
      – SubjectFull: Computer simulation
        Type: general
      – SubjectFull: Temperature
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      – SubjectFull: Hydroxyl group
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      – SubjectFull: Gas mixtures
        Type: general
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      – TitleFull: Analysis of the Capabilities of Modern Detailed Kinetic Mechanisms to Describe the Ignition of Ultralean Hydrogen–Air Mixtures.
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              Text: Jan2026
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