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New Approaches in Modeling Multiphase Flows and Dispersion in Turbulence, Fractal Methods and Synthetic Turbulence pp 9–21Cite as

Detached Eddy Simulation for Turbulent Flows in a Pipe with a Snowflake Fractal Orifice

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Part of the book series: ERCOFTAC Series ((ERCO,volume 18))

Abstract

Turbulent flows in a pipe with a snowflake fractal shape (SF2) orifice are investigated using the parallelized, density-based, dynamic mesh and detached eddy simulation code (DG-DES) (Xia, PhD thesis, 2005; Xia and Qin, AIAA 2005-106, 2005). For comparison with the laboratory experiment, the flow is essentially a low Mach number flow. In order to tackle the low speed problem of the density based method, the SLAU (Simple Low dissipation AUSM) (Shima and Kitamura in 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, AIAA 2009-136, 2009) is adopted in this paper. The scheme exhibits low numerical dissipations for low speeds and needs no problem-dependent “cut-off Mach number”. The results for the flows after the orifice are compared with those of the corresponding experiment (Chong, PhD thesis, 2008). Comparisons show good agreements in the mean velocity profiles at the different holes.

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Notes

  1. 1.

    We direct the reader to other papers in this Book Series for details on Kinematic Simulation (KS).

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Acknowledgements

Fruitful discussions with J.C. Vassilicos and S. Laizet are gratefully acknowledged.

This work was supported by the Engineering and Physical Sciences Research Council through the UK Turbulence Consortium (Grant EP/G069581/1).

Author information

Authors and Affiliations

  1. LHD, Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, China

    H. W. Zheng

  2. Sheffield Fluid Mechanics Group, Department of Mechanical Engineering, The University of Sheffield, Mappin Street, Sheffield, S1 3JD, UK

    F. C. G. A. Nicolleau

  3. Department of Mechanical Engineering, The University of Sheffield, Mappin Street, Sheffield, S1 3JD, UK

    N. Qin

Authors
  1. H. W. Zheng
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  2. F. C. G. A. Nicolleau
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  3. N. Qin
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Corresponding author

Correspondence to H. W. Zheng .

Editor information

Editors and Affiliations

  1. Sheffield Fluid Mechanics Group, Mechanical Engineering, University of Sheffield, Mappin Street, Sheffield, S1 3 JD, United Kingdom

    F.C.G.A. Nicolleau

  2. LMFA UMR CNRS 5509, Ecole Centrale de Lyon, Avenue Guy de Collongue 36, Ecully CEDEX, 69131, France

    C. Cambon

  3. UPC, Fisica Aplicada, Universidad Politecnica de Catalunya, Campus Nord, Barcelona, 08034, Spain

    J.-M. Redondo

  4. Department of Aeronautics, Imperial College, Prince Consort Road, South Kensington, London, SW7 2BY, United Kingdom

    J.C. Vassilicos

  5. School Mechanical & Systems Engineering, The University of Newcastle, Clermont Road, Newcastle, M1 7RU, United Kingdom

    M. Reeks

  6. Sheffield Fluid Mechanics Group, Mechanical Engineering, University of Sheffield, Mappin Street, Sheffield, S1 3 JD, United Kingdom

    A.F. Nowakowski

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Zheng, H.W., Nicolleau, F.C.G.A., Qin, N. (2012). Detached Eddy Simulation for Turbulent Flows in a Pipe with a Snowflake Fractal Orifice. In: Nicolleau, F., Cambon, C., Redondo, JM., Vassilicos, J., Reeks, M., Nowakowski, A. (eds) New Approaches in Modeling Multiphase Flows and Dispersion in Turbulence, Fractal Methods and Synthetic Turbulence. ERCOFTAC Series, vol 18. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-2506-5_2

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  • DOI: https://doi.org/10.1007/978-94-007-2506-5_2

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-007-2505-8

  • Online ISBN: 978-94-007-2506-5

  • eBook Packages: EngineeringEngineering (R0)

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