3-D Navier-Stokes Solver for the Simulation of the Unsteady Turbomachinery Flow on a Massively Parallel Hardware Architecture

  • Karl Engel
  • Frank Eulitz
  • Stefan Pokorny
  • Michael Faden
Part of the Notes on Numerical Fluid Mechanics (NNFM) book series (NONUFM, volume 48)


An interactive flow simulation system has been developed by the authors to study and analyze unsteady flow phenomena in turbomachinery components. The flow solver along with a data processing unit has been parallelized based on domain decomposition using the communication libraries PVM or MPI. The flow solver can be run on heterogeneous workstation clusters and on various parallel hardware platforms.

For full scalability, time integration is based on explicit, fully local algorithms. Stability is enhanced through a time accurate two-grid approach or a dual time stepping procedure. Convection is handled by second order TVD upwind schemes. The in- and outflow boundaries are treated with a non-reflecting boundary condition technique. Turbulence is accounted for by using the Spalart-Allmaras one-equation model.

Various examples of application are presented to demonstrate the usefulness of the developed simulation system.


Unsteady Flow Domain Decomposition Eddy Viscosity Flow Solver Outflow Boundary 
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

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH, Braunschweig/Wiesbaden 1996

Authors and Affiliations

  • Karl Engel
    • 1
  • Frank Eulitz
    • 1
  • Stefan Pokorny
    • 2
  • Michael Faden
    • 2
  1. 1.Institute for Propulsion TechnologyDLR, German Aerospace Research EstablishmentCologneGermany
  2. 2.Department for High Performance ComputingDLR, German Aerospace Research EstablishmentCologneGermany

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