Application and Comparison of Two Different DNS Algorithms for Simulating Transition to Turbulence in Taylor-Green Vortex Flow

  • İlyas Yılmaz
  • Lars Davidson
  • Fırat O. Edis
  • Hasan Saygın
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 141)

Abstract

An all-Mach number, fully implicit, non-dissipative DNS algorithm and an incompressible, dissipative DNS algorithmwere applied for simulating transition to turbulence in TGV flow to assess their behavior for this flow regime. The all-Mach number solver was developed and parallelized. A method was also adopted to remove oscillating pressure corrections in time. In order to compare the behavior of the algorithms, various flow diagnostics were calculated. The results were also compared to results given in the literature. The development of the flow and the peak structures show some differences due to different dissipative and energy conserving properties of the algorithms. However the physics of TGV flow are well captured by both, even though the grid is not fully resolved.

Keywords

Mach Number Peak Structure Energy Cascade Implicit Algorithm Viscous Case 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • İlyas Yılmaz
    • 1
  • Lars Davidson
    • 2
  • Fırat O. Edis
    • 3
  • Hasan Saygın
    • 4
  1. 1.Energy Inst.Istanbul Tech. Univ.MaslakTurkey
  2. 2.Div. of Fluid Dyn., Dept. of Appl. Mech.Chalmers Univ. of Tech.GothenburgSweden
  3. 3.Fac. of Aero. & Astro.Istanbul Tech. Univ.MaslakTurkey
  4. 4.Fac. of Engineering & ArchitectureIstanbul Aydın Univ.FloryaTurkey

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