IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v14y2021i11p2992-d559614.html
   My bibliography  Save this article

Modelling Aspects in the Simulation of the Diffusive Flame in A Bluff-Body Geometry

Author

Listed:
  • Alessandro Di Mauro

    (Department of Energy, Politecnico di Torino, 10129 Torino, Italy)

  • Marco Ravetto

    (Department of Energy, Politecnico di Torino, 10129 Torino, Italy)

  • Prashant Goel

    (Department of Energy, Politecnico di Torino, 10129 Torino, Italy)

  • Mirko Baratta

    (Department of Energy, Politecnico di Torino, 10129 Torino, Italy)

  • Daniela Anna Misul

    (Department of Energy, Politecnico di Torino, 10129 Torino, Italy)

  • Simone Salvadori

    (Department of Energy, Politecnico di Torino, 10129 Torino, Italy)

  • Rainer Rothbauer

    (Convergent Science GmbH, 4040 Linz, Austria)

  • Riccardo Gretter

    (Convergent Science GmbH, 4040 Linz, Austria)

Abstract

Gas turbines are expected to play a key role in the energy production scenario in the future, and the introduction of carbon-free fuels is fundamental for the development of a sustainable energy mix. The development of a reliable numerical model is thus fundamental in order to support the design changes required for the burners. This paper presents the results of a numerical investigation on a turbulent, diffusive, combustion test case, with the purpose of identifying the best compromise between accuracy and computational cost, in the perspective of the model application in real, more complex, geometries. Referring to a test case has two main advantages. First, a rather simple geometry can be considered, still retaining a few peculiar flow features, such as recirculation vortices and shear layers, which are typical of real applications. Second, the experimental setup is much more detailed than in the case of real turbines, allowing a thorough model validation to be performed. In this paper, the Standard 2-equations k-ε model and the Speziale-Sarkar-Gatski Reynolds Stress Model are considered. Moreover, both the FGM combustion model and the detailed chemistry model are used, coupled with two chemical reaction mechanisms, and their results are compared. Finally, a standard and an enhanced near-wall approach are employed to solve the transport equations close to the walls. The results show a good agreement in the temperature distribution at the axial positions corresponding to the experimental measurements. Overall, the standard wall function approach for describing the near-wall flow proved to be more effective at increasingly higher distances from the jet centre. Such differences are related to the formulations employed by the two near-wall approaches, which led to changes in the predicted flow field around the fuel jet. Finally, the adoption of a reaction mechanism describing in detail the species concentration is mandatory whenever the reliable prediction of the NOx formation is of primary importance. The conclusion reached in this paper can be helpful for the development of reliable and cost-effective CFD models of turbine combustors.

Suggested Citation

  • Alessandro Di Mauro & Marco Ravetto & Prashant Goel & Mirko Baratta & Daniela Anna Misul & Simone Salvadori & Rainer Rothbauer & Riccardo Gretter, 2021. "Modelling Aspects in the Simulation of the Diffusive Flame in A Bluff-Body Geometry," Energies, MDPI, vol. 14(11), pages 1-19, May.
  • Handle: RePEc:gam:jeners:v:14:y:2021:i:11:p:2992-:d:559614
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/14/11/2992/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1996-1073/14/11/2992/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Benim, Ali Cemal & Pfeiffelmann, Björn & Ocłoń, Paweł & Taler, Jan, 2019. "Computational investigation of a lifted hydrogen flame with LES and FGM," Energy, Elsevier, vol. 173(C), pages 1172-1181.
    2. Yixiang Yuan & Qinghua Zeng & Jun Yao & Yongjun Zhang & Mengmeng Zhao & Lu Zhao, 2021. "Improving Blowout Performance of the Conical Swirler Combustor by Employing Two Parts of Fuel at Low Operating Condition," Energies, MDPI, vol. 14(6), pages 1-11, March.
    3. Ali Cemal Benim & Björn Pfeiffelmann, 2019. "Comparison of Combustion Models for Lifted Hydrogen Flames within RANS Framework," Energies, MDPI, vol. 13(1), pages 1-24, December.
    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. Salvatore Carusotto & Prashant Goel & Mirko Baratta & Daniela Anna Misul & Simone Salvadori & Francesco Cardile & Luca Forno & Marco Toppino & Massimo Valsania, 2022. "Combustion Characterization in a Diffusive Gas Turbine Burner for Hydrogen-Compliant Applications," Energies, MDPI, vol. 15(11), pages 1-20, June.

    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. Ali Cemal Benim & Björn Pfeiffelmann, 2019. "Comparison of Combustion Models for Lifted Hydrogen Flames within RANS Framework," Energies, MDPI, vol. 13(1), pages 1-24, December.
    2. Jiming Lin & Ming Bao & Feng Zhang & Yong Zhang & Jianhong Yang, 2022. "Numerical and Experimental Investigation of a Non-Premixed Double Swirl Combustor," Energies, MDPI, vol. 15(2), pages 1-16, January.
    3. Ruslan V. Fedorov & Dmitry A. Generalov & Vyacheslav V. Sherkunov & Valeriy V. Sapunov & Sergey V. Busygin, 2023. "Improving the Efficiency of Fuel Combustion with the Use of Various Designs of Embrasures," Energies, MDPI, vol. 16(11), pages 1-15, May.
    4. Rashwan, Sherif S. & Mohany, Atef & Dincer, Ibrahim, 2020. "Investigation of self-induced thermoacoustic instabilities in gas turbine combustors," Energy, Elsevier, vol. 190(C).
    5. Tang, Zhenhua & Wang, Zhirong & Zhao, Kun, 2023. "Flame stabilization characteristics of turbulent hydrogen jet flame diluted by nitrogen," Energy, Elsevier, vol. 283(C).
    6. Ali Cemal Benim & Cansu Deniz Canal & Yakup Erhan Boke, 2021. "A Validation Study for RANS Based Modelling of Swirling Pulverized Fuel Flames," Energies, MDPI, vol. 14(21), pages 1-33, November.
    7. Peng, Yudan & Fu, Guangming & Chen, Jiying & Sun, Baojiang & Sun, Xiaohui, 2024. "Bottom-hole pressure inversion method for nature gas wells based on blowout combustion flame shape parameters," Energy, Elsevier, vol. 294(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:2021:i:11:p:2992-:d:559614. 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.