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Toward coherently representing turbulent wall-flow dynamics

  • J. C. Klewicki (a1) (a2)
Abstract
Abstract

The complex dynamics of turbulent flow in the vicinity of a solid surface underlie numerous scientifically important processes, and pose persistently daunting challenges in many engineering applications. Since their discovery decades ago, coherent motions have presented a tantalizing prospective opportunity for constructing descriptions of wall-flow dynamics using only a relatively small number of elements. The veracity and reliability of such representations are, however, ultimately tied to their basis in the Navier–Stokes equations. In this regard, the study by Sharma & McKeon (J. Fluid Mech., vol. 728, 2013, pp. 196–238) constitutes an important contribution, as it not only provides insights regarding the mechanisms underlying wall-flow coherent motion formation and evolution, but does so within a Navier–Stokes framework.

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Corresponding author
Email address for correspondence: joe.klewicki@unh.edu
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This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

B. J. Cantwell 1981 Organized motion in turbulent flow. Annu. Rev. Fluid Mech. 13, 457515.

K. Julien & E. Knobloch 2007 Reduced models for fluid flows with strong constraints. J. Math. Phys. 48, 065405.

J. C. Klewicki 2010 Reynolds number dependence, scaling and dynamics of turbulent boundary layers. J. Fluids Engng 132, 094001-2.

R. R. Kerswell 2005 Recent progress in understanding the transition to turbulence in a pipe. Nonlinearity 18, R17R44.

I. Marusic , B. J. McKeon , P. A. Monkewitz , H. M. Nagib , A. J. Smits & K. R. Sreenivasan 2010 Wall-bounded turbulent flows: recent advances and key issues. Phys. Fluids 22, 065103.

S. K. Robinson 1991 Coherent motions in the turbulent boundary layer. Annu. Rev. Fluid Mech. 23, 601639.

F. Waleffe 2003 Homotopy of exact coherent structures in plane shear flows. Phys. Fluids 15, 15171535.

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Journal of Fluid Mechanics
  • ISSN: 0022-1120
  • EISSN: 1469-7645
  • URL: /core/journals/journal-of-fluid-mechanics
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