IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v14y2020i1p24-d466860.html
   My bibliography  Save this article

Numerical Simulations of DDT Limits in Hydrogen-Air Mixtures in Obstacle Laden Channel

Author

Listed:
  • Wojciech Rudy

    (Institute of Heat Engineering, Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, Nowowiejska 21/25, 00-665 Warsaw, Poland)

  • Andrzej Teodorczyk

    (Institute of Heat Engineering, Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, Nowowiejska 21/25, 00-665 Warsaw, Poland)

Abstract

The main aim of this study was to perform numerical simulations of deflagration to detonation transition process (DDT) in hydrogen–air mixtures and assess the capabilities of freeware open-source ddtFoam code to simulate and capture DDT limits. The numerical geometry was based on the real 0.08 × 0.11 × 4 m (H × W × L), rectangular cross-section detonation channel previously used to experimentally investigate DDT limits in obstacle-filled channel. The constant blockage ratio (BR) equal to 0.5 was kept for three obstacle spacing configurations: S = H, 2H, 3H. The results showed that hydrogen concentration limits for successful DDT from simulations are close to the experimental values, however, the simulated DDT limits range is wider than the experimental one and depends on the obstacles spacing. The numerical results were analyzed by means of propagation velocities, overpressures, and run-up distances. The best match between numerical and experimental DDT limits was observed for obstacles spacing L = 3H and the lowest match for spacing L = H. The comparison between experimental and numerical results points at the possible application of ddtFoam in geometry with a relatively low level of congestion. This work results proved that simulations in such geometry provide numerical flame acceleration velocity profiles, run-up distance, and recorded overpressures very close to experimentally measured.

Suggested Citation

  • Wojciech Rudy & Andrzej Teodorczyk, 2020. "Numerical Simulations of DDT Limits in Hydrogen-Air Mixtures in Obstacle Laden Channel," Energies, MDPI, vol. 14(1), pages 1-19, December.
    • Handle: RePEc:gam:jeners:v:14:y:2020:i:1:p:24-:d:466860
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/14/1/24/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/14/1/24/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Rudy, Wojciech & Zbikowski, Mateusz & Teodorczyk, Andrzej, 2016. "Detonations in hydrogen-methane-air mixtures in semi confined flat channels," Energy, Elsevier, vol. 116(P3), pages 1479-1483.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Bingang Guo & Jianfeng Gao & Bin Hao & Bingjian Ai & Bingyuan Hong & Xinsheng Jiang, 2022. "Experimental and Numerical Study on the Explosion Dynamics of the Non-Uniform Liquefied Petroleum Gas and Air Mixture in a Channel with Mixed Obstacles," Energies, MDPI, vol. 15(21), pages 1-16, October.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Simon Drost & Sven Eckart & Chunkan Yu & Robert Schießl & Hartmut Krause & Ulrich Maas, 2023. "Numerical and Experimental Investigations of CH 4 /H 2 Mixtures: Ignition Delay Times, Laminar Burning Velocity and Extinction Limits," Energies, MDPI, vol. 16(6), pages 1-17, March.
    2. Liu, Lijuan & Zhang, Qi, 2019. "Flame range and energy output in two-phase propylene oxide/air mixtures beyond the original premixed zone," Energy, Elsevier, vol. 171(C), pages 666-677.
    3. Zhang, Qibin & Wang, Ke & Dong, Rongxiao & Fan, Wei & Lu, Wei & Wang, Yongjia, 2019. "Experimental research on propulsive performance of the pulse detonation rocket engine with a fluidic nozzle," Energy, Elsevier, vol. 166(C), pages 1267-1275.
    4. Alves, Luís & Pereira, Vítor & Lagarteira, Tiago & Mendes, Adélio, 2021. "Catalytic methane decomposition to boost the energy transition: Scientific and technological advancements," Renewable and Sustainable Energy Reviews, Elsevier, vol. 137(C).
    5. Wang, Du & Ji, Changwei & Wang, Shuofeng & Yang, Jinxin & Tang, Chuanqi, 2019. "Experimental investigation on near wall ignited lean methane/hydrogen/air flame," Energy, Elsevier, vol. 168(C), pages 1094-1103.
    6. Huang, Si-Yuan & Zhou, Jin & Liu, Shi-Jie & Peng, Hao-Yang & Yuan, Xue-Qiang, 2022. "Continuous rotating detonation engine fueled by ammonia," Energy, Elsevier, vol. 252(C).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:14:y:2020:i:1:p:24-:d:466860. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.