Numerical Simulations of Two-Dimensional Temporal and Spatial free Shear Layers: a Comparison

  • C. Hipp-Kalthoff
  • H. Fasel
Conference paper
Part of the International Union of Theoretical and Applied Mechanics book series (IUTAM)


Two-dimensional laminar free shear layers are investigated by numerical simulations based on the complete Navier-Stokes equations. For solving the Navier-Stokes equations a finite difference method of forth-order accuracy in space and third-order accuracy in time is employed. For these investigations two different models are considered: the temporal model where spatial periodicity is assumed and therefore the shear layers (T-layers) develop in time, and the spatial model where the shear layers (S-layers) develop in the stream wise direction. The shear layers are forced with two perturbation modes, the fundamental mode and the subharmonic mode. The response of the shear layers to these perturbations is compared and discussed. It is found that the flow development may in some aspect be quite different.


Shear Layer Fundamental Mode Spatial Model Temporal Model Streamwise Direction 
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Copyright information

© Springer-Verlag, Berlin Heidelberg 1991

Authors and Affiliations

  • C. Hipp-Kalthoff
    • 1
  • H. Fasel
    • 2
  1. 1.Institut für Aerodynamik und GasdynamikUniversität StuttgartStuttgart 80Germany
  2. 2.Department of Aerospace & Mechanical EngineeringUniversity of ArizonaTucsonUSA

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