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Algorithmic Developments in TAU

  • Ralf Heinrich
  • Richard Dwight
  • Markus Widhalm
  • Axel Raichle
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM) book series (NNFM, volume 89)

Summary

The paper describes a selection of algorithmic developments which have been implemented in the hybrid Navier-Stokes solver TAU during the MEGAFLOW II project. The paper concentrates on algorithms that help to improve the performance, the accuracy as well as the functionality. The algorithms presented are implicit MAPS-smoothing, low Mach number preconditioning, least square reconstruction in combination with a cell centered approach, the actuator disk boundary condition and a formulation for moving coordinate systems enabling steady solutions in a rotating frame. Results are presented in comparison to earlier versions of the TAU code, highlighting the improvements with respect to performance and/or accuracy. Comparisons with experimental data and results obtained with the FLOWer code are used to validate the new functionalities.

Keywords

Upwind Scheme Total Pressure Loss Pressure Drag Move Coordinate System Dual Mesh 
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 2005

Authors and Affiliations

  • Ralf Heinrich
    • 1
  • Richard Dwight
    • 1
  • Markus Widhalm
    • 1
  • Axel Raichle
    • 1
  1. 1.DLRInstitute of Aerodynamics and Flow TechnologyBraunschweig

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