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Mixing Dynamics in Interacting Vortices

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Energy for Propulsion

Part of the book series: Green Energy and Technology ((GREEN))

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Abstract

Mixing dynamics arising from the interaction of two convecting line vortices of different strengths and time delays have been investigated in this chapter. Experimentally obtained planar laser induced fluorescence images of acetone vortices mixing in air are thoroughly substantiated with computational modeling and analysis. Same and opposite direction of rotation, generating vortex pairs and couples were found to augment and dissipate species mixing respectively as indicated by global scalar statistics like mean and variance. Local mixing characteristics are analyzed using joint probability density function of vorticity and species concentration. This quantitatively showed how mixing is dissipated or augmented for individual vortices and at different vorticity magnitudes, even by the decaying and apparently indiscernible presence of a favorable or unfavorable direction of rotation of the preceding vortex.

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Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, Indian Institute of Science Bangalore, Bengaluru, India

    Saptarshi Basu

  2. Department of Aerospace Engineering, Indian Institute of Science Bangalore, Bengaluru, India

    Swetaprovo Chaudhuri

  3. Department of Mechanical Engineering, University of Connecticut Storrs, Connecticut, USA

    Baki M. Cetegen

  4. Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ, USA

    Abhishek Saha

Authors
  1. Saptarshi Basu
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  2. Swetaprovo Chaudhuri
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  3. Baki M. Cetegen
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  4. Abhishek Saha
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Corresponding author

Correspondence to Saptarshi Basu .

Editor information

Editors and Affiliations

  1. ACRI, The CFD Innovators, Los Angeles, California, USA

    Akshai K. Runchal

  2. Department of Mechanical Engineering, University of Maryland, Department of Mechanical Engineering, College Park, Maryland, USA

    Ashwani K. Gupta

  3. Department of Aerospace Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India

    Abhijit Kushari

  4. Department of Aerospace Engineering, Indian Institute of Technology Kanpur, Department of Aerospace Engineering, Kanpur, Uttar Pradesh, India

    Ashoke De

  5. Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Department of Mechanical Engineering, Chicago, Illinois, USA

    Suresh K. Aggarwal

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Basu, S., Chaudhuri, S., Cetegen, B.M., Saha, A. (2018). Mixing Dynamics in Interacting Vortices. In: Runchal, A., Gupta, A., Kushari, A., De, A., Aggarwal, S. (eds) Energy for Propulsion . Green Energy and Technology. Springer, Singapore. https://doi.org/10.1007/978-981-10-7473-8_13

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  • DOI: https://doi.org/10.1007/978-981-10-7473-8_13

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-10-7472-1

  • Online ISBN: 978-981-10-7473-8

  • eBook Packages: EnergyEnergy (R0)

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