IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v14y2021i9p2626-d548538.html
   My bibliography  Save this article

The Implication of Injection Locations in an Axisymmetric Cavity-Based Scramjet Combustor

Author

Listed:
  • Naresh Relangi

    (School of Aerospace Engineering, University of Rome “La Sapienza”, 00138 Rome, Italy)

  • Antonella Ingenito

    (School of Aerospace Engineering, University of Rome “La Sapienza”, 00138 Rome, Italy)

  • Suppandipillai Jeyakumar

    (Aeronautical Engineering, Kalasalingam Academy of Research and Education, Krishnankoil 626126, India)

Abstract

This paper presents the effect of cavity-based injection in an axisymmetric supersonic combustor using numerical investigation. An axisymmetric cavity-based angled and transverse injections in a circular scramjet combustor are studied. A three-dimensional Reynolds-averaged Navier–Stokes (RANS) equation along with the k-ω shear-stress transport (SST) turbulence model and species transport equations are considered for the reacting flow studies. The numerical results of the non-reacting flow studies are validated with the available experimental data and are in good agreement with it. The performance of the injection system is analyzed based on the parameters like wall pressures, combustion efficiency, and total pressure loss of the scramjet combustor. The transverse injection upstream of the cavity and at the bottom wall of the cavity in a supersonic flow field creates a strong shock train in the cavity region that enhances complete combustion of hydrogen-air in the cavity region compared to the cavity fore wall injection schemes. Eventually, the shock train in the flow field enhances the total pressure loss across the combustor. However, a marginal variation in the total pressure loss is observed between the injection schemes.

Suggested Citation

  • Naresh Relangi & Antonella Ingenito & Suppandipillai Jeyakumar, 2021. "The Implication of Injection Locations in an Axisymmetric Cavity-Based Scramjet Combustor," Energies, MDPI, vol. 14(9), pages 1-13, May.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:9:p:2626-:d:548538
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/14/9/2626/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/14/9/2626/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. A. Antony Athithan & S. Jeyakumar & Norbert Sczygiol & Mariusz Urbanski & A. Hariharasudan, 2021. "The Combustion Characteristics of Double Ramps in a Strut-Based Scramjet Combustor," Energies, MDPI, vol. 14(4), pages 1-20, February.
    2. Chae-Hyoung Kim & In-Seuck Jeung, 2019. "Forced Combustion Characteristics Related to Different Injection Locations in Unheated Supersonic Flow," Energies, MDPI, vol. 12(9), pages 1-13, May.
    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. Byeong-Jo Hwang & Seongki Min, 2023. "Numerical Investigation of the Effect of Supersonic Air Temperature on the Mixing Characteristics of Liquid Fuel," Energies, MDPI, vol. 16(1), pages 1-17, January.

    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. Byeong-Jo Hwang & Seongki Min, 2023. "Numerical Investigation of the Effect of Supersonic Air Temperature on the Mixing Characteristics of Liquid Fuel," Energies, MDPI, vol. 16(1), pages 1-17, January.
    2. Fan Li & Mingbo Sun & Zun Cai & Yong Chen & Yongchao Sun & Fei Li & Jiajian Zhu, 2020. "Effects of Additional Cavity Floor Injection on the Ignition and Combustion Processes in a Mach 2 Supersonic Flow," Energies, MDPI, vol. 13(18), pages 1-17, September.
    3. Wenxiong Xi & Mengyao Xu & Chaoyang Liu & Jian Liu & Bengt Sunden, 2022. "Generation and Propagation Characteristics of an Auto-Ignition Flame Kernel Caused by the Oblique Shock in a Supersonic Flow Regime," Energies, MDPI, vol. 15(9), pages 1-14, May.

    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:2021:i:9:p:2626-:d:548538. 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.