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Comparison of Parallel Time-Periodic Navier-Stokes Solvers

  • Peter ArbenzEmail author
  • Daniel Hupp
  • Dominik Obrist
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10777)

Abstract

In this paper we compare two different methods to compute time-periodic steady states of the Navier-Stokes equations. The first one is a traditional time-stepping scheme which has to be evolved until the state is reached. The second one uses periodic boundary conditions in time and uses a spectral discretization in time. The methods are compared with regard to accuracy and scalability by solving for a time-periodic Taylor-Green vortex. We show that the time-periodic steady state can be computed much faster with the spectral in time method than with the standard time-stepping method if the Womersley number is sufficiently large.

Keywords

Parallel-in-time Time-periodic Navier-Stokes equations Taylor-Green vortex 

Notes

Acknowledgment

The work of D. Hupp was supported in part by Grant No. 200021_147052 of the Swiss National Science Foundation.

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Computer Science DepartmentETH ZürichZürichSwitzerland
  2. 2.ARTORG CenterUniversity of BernBernSwitzerland

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