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Large Eddy Simulations for the Ahmed Car at 25° Slant Angle at Different Reynolds Numbers

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Abstract

The article investigates the feasibility of Large Eddy Simulation methods to accurately compute the flow around the Ahmed car body at \(25^\circ\) slant angle. The flow is computed at two different Reynolds numbers and with different turbulence modeling concepts using a large variety of grids. Issues associated with the accurate computation of the separation at the slant onset will be discussed in detail.

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Acknowledgements

Most of the computations CPU were conducted with the use of the cluster Tornado of the Computer Center “Polytechnichesky”.

Funding

Russian authors’ research was funded by the Ministry of Science and Higher Education of the Russian Federation as part of World-class Research Center program: Advanced Digital Technologies (contract No. 075-15-2022-311 of Apr. 20, 2022).

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Authors and Affiliations

  1. ANSYS Germany GmbH, Otterfing, Germany

    Florian R. Menter, Andreas Hüppe & David Flad

  2. St. Petersburg Polytechnic University, 29, Polytechnicheskaya Str., St.-Petersburg, Russia, 195251

    Andrey V. Garbaruk, Alexey A. Matyushenko & Andrey S. Stabnikov

Authors
  1. Florian R. Menter
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  2. Andreas Hüppe
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  3. David Flad
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  4. Andrey V. Garbaruk
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  5. Alexey A. Matyushenko
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  6. Andrey S. Stabnikov
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Contributions

FRM and AG managed the technical direction of the project. FRM wrote the main body of the article. DF provided improved numerical settings. AH generated the Octree meshes. AM and AS carried out the simulations and provided the post-processing.

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Correspondence to Florian R. Menter.

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Menter, F.R., Hüppe, A., Flad, D. et al. Large Eddy Simulations for the Ahmed Car at 25° Slant Angle at Different Reynolds Numbers. Flow Turbulence Combust 112, 321–343 (2024). https://doi.org/10.1007/s10494-023-00472-9

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