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KSME International Journal

, Volume 12, Issue 2, pp 291–300 | Cite as

Direct numerical simulation of turbulent periodic obstacle flow

  • R. Kessler
  • K. S. Yang
Article

Abstract

A direct numerical simulation (DNS) of turbulent flow in a channel with square obstacles mounted on a wall was carried out. The Reynolds number was 6820 based on the bulk velocity in the channel and the channel height. The main objective of the work was to evaluate statistical data from the time-dependent numerical solution. The influence of numerical and statistical errors on these data was examined. A comprehensive data base including 290 correlations was set up for testing and improving turbulence models for this complex, separated flow.

Key Words

Direct Numerical Simulation (DNS) Turbulence Obstacle 

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References

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Copyright information

© The Korean Society of Mechanical Engineers (KSME) 1998

Authors and Affiliations

  • R. Kessler
    • 1
  • K. S. Yang
    • 2
  1. 1.German Acrospace CenterInstitute of Fluid MechanicsGöttingenGermany
  2. 2.Dept. of Mechanical EngineeringINHA UniversityInchonKorea

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