A Numerical Study of the Shear-Less Turbulent/Non-turbulent Interface

  • G. CocconiEmail author
  • A. Cimarelli
  • B. Frohnapfel
  • E. De Angelis
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 165)


A DNS simulation of an interface between a decaying turbulent flow without mean shear and a quiescent non-turbulent region is presented here. The analysis of the instantaneous fields highlight a complex multi-scale behaviour at the turbulent/non-turbulent interface. According to previous results in the literature, by analysing the enstrophy budgets it is possible to observe that enstrophy propagate from the turbulent region mainly by inviscid process while viscous diffusion is relevant only at the interface.


Viscous Dissipation Turbulent Region Integral Time Scale Homogeneous Isotropic Turbulence Viscous Diffusion 
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  1. 1.
    da Silva, C.B., Hunt, J.C.R., Eames, I., Westerweel, J.: Interfacial layers between regions of different turbulence intensity. Annu. Rev. Fluid Mech. 46, 567–590 (2014)MathSciNetCrossRefzbMATHGoogle Scholar
  2. 2.
    Taveira, R.R., da Silva, C.B.: Characteristics of the viscous superlayer in shear free turbulence and in planar turbulent jets. Phys. Fluids 26, 021702 (2014)CrossRefGoogle Scholar
  3. 3.
    Tordella, D., Iovieno, M., Bailey, P.R.: Sufficient condition for gaussian departure in turbulence. Phys. Rev. E 77, 016309 (2008)CrossRefGoogle Scholar
  4. 4.
    Wolf, M., Holzner, M., Lüthi, B., Krug, D., Kinzelbach, W., Tsinober, A.: Effects of mean shear on the local turbulent entrainment process. J. Fluid Mech. 731, 95–116 (2013)CrossRefzbMATHGoogle Scholar

Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • G. Cocconi
    • 1
    Email author
  • A. Cimarelli
    • 2
  • B. Frohnapfel
    • 1
  • E. De Angelis
    • 3
  1. 1.ISTM - Institute of Fluid MechanicsKarlsruhe Institute of TechnologyKarlsruheGermany
  2. 2.CIRI - Centro Interdipartimentale di Ricerca Industriale AeronauticaUniversità di BolognaForlìItaly
  3. 3.DIN - Dipartimento Ingegneria Industriale Università di BolognaBolognaItaly

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