The dynamics of coherent structures in a flat-plate boundary layer

D. Rempfer, Hermann F Fasel

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

From the data of a direct numerical simulation the three-dimensional coherent structures of an incompressible, spatially evolving flat-plate boundary layer have been calculated using the POD method. By Galerkin projection of the Navier-Stokes equations onto the corresponding system of eigenfunctions then a low-dimensional model of the flow in the form of a system of ODE's has been derived. In a region of the boundary layer just beyond the spike stages of transition this system displays deterministic chaos that has been quantified by determining its Lyapunov exponents.

Original languageEnglish (US)
Pages (from-to)73-77
Number of pages5
JournalApplied Scientific Research (The Hague)
Volume51
Issue number1-2
DOIs
StatePublished - Jun 1993

Fingerprint

flat plates
boundary layers
Boundary layers
Direct numerical simulation
display devices
direct numerical simulation
spikes
Eigenvalues and eigenfunctions
Chaos theory
Navier-Stokes equation
Navier Stokes equations
chaos
eigenvectors
projection
exponents

Keywords

  • chaos
  • coherent structures
  • dynamical systems

ASJC Scopus subject areas

  • Engineering(all)

Cite this

The dynamics of coherent structures in a flat-plate boundary layer. / Rempfer, D.; Fasel, Hermann F.

In: Applied Scientific Research (The Hague), Vol. 51, No. 1-2, 06.1993, p. 73-77.

Research output: Contribution to journalArticle

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