IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v14y2021i4p831-d493912.html
   My bibliography  Save this article

The Combustion Characteristics of Double Ramps in a Strut-Based Scramjet Combustor

Author

Listed:
  • A. Antony Athithan

    (Faculty of Engineering, Lincoln University College, Petaling Jaya 47301, Malaysia)

  • S. Jeyakumar

    (Faculty of Engineering, Lincoln University College, Petaling Jaya 47301, Malaysia
    CFD Center, Aeronautical Engineering, Kalasalingam Academy of Research and Education, Krishnankoil 626126, India)

  • Norbert Sczygiol

    (Faculty of Mechanical Engineering and Computer Science, Czestochowa University of Technology, 42201 Czestochowa, Poland)

  • Mariusz Urbanski

    (Faculty of Civil Engineering, Czestochowa University of Technology, 42201 Czestochowa, Poland)

  • A. Hariharasudan

    (Faculty of English, Kalasalingam Academy of Research and Education, Krishnankoil 626126, India)

Abstract

This paper focuses on the influence of ramp locations upstream of a strut-based scramjet combustor under reacting flow conditions that are numerically investigated. In contrast, a computational study is adopted using Reynolds Averaged Navier Stokes (RANS) equations with the Shear Stress Transport (SST) k-ω turbulence model. The numerical results of the Deutsches Zentrum für Luft- und Raumfahrt or German Aerospace Centre (DLR) scramjet model are validated with the reported experimental values that show compliance within the range, indicating that the adopted simulation method can be extended for other investigations as well. The performance of the ramps in the strut-based scramjet combustor is analyzed based on parameters such as wall pressures, combustion efficiency and total pressure loss at various axial locations of the combustor. From the numerical shadowgraph, more shock interactions are observed upstream of the strut injection region for the ramp cases, which decelerates the flow downstream, and additional shock reflections with less intensity are also noticed when compared with the DLR scramjet model. The shock reflection due to the ramps enhances the hydrogen distribution in the spatial direction. The ignition delay is noticed for ramp combustors due to the deceleration of flow compared to the baseline strut only scramjet combustor. However, a higher flame temperature is observed with the ramp combustor. Because more shock interactions arise from the ramps, a marginal increase in the total pressure loss is observed for ramp combustors when compared to the baseline model.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:4:p:831-:d:493912
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/14/4/831/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/14/4/831/
    Download Restriction: no
    ---><---

    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.
    2. 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.
    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:4:p:831-:d:493912. 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.

    We have no bibliographic references for this item. You can help adding them by using 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.