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Semi-Lagrangian Approximation of Conservation Laws of Gas Flow in a Channel with Backward Step

  • Vladimir V. ShaydurovEmail author
  • Maksim V. Yakubovich
Conference paper
Part of the Smart Innovation, Systems and Technologies book series (SIST, volume 133)

Abstract

In the chapter, the numerical modeling of a supersonic flow of a viscous heat-conducting gas in a flat channel with the backward step is considered. A numerical algorithm is proposed for the initial boundary-value problem for the Navier-Stokes equations. These equations are modified and supplemented by new boundary conditions to provide the conservation law for the full energy: kinetic and inner. Then the combination of the Lagrangian approximation for the transfer operators and the conforming finite element method for other terms provides an efficient algorithm. Particular attention has been given to the approximation providing the conservation laws for mass and full energy at discrete level. Test calculations have been performed for a wide range of Mach and Reynolds numbers.

Keywords

Viscous heat-conducting gas Navier-Stokes equations Lagrangian approximations of transfer operator Conservation laws Finite element method Gas flow in a flat channel 

Notes

Acknowledgements

The work was supported by Russian Foundation for Basic Research to project No. 17-01-000270 and by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project No. 18-41-243006.

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Vladimir V. Shaydurov
    • 1
    • 2
    Email author
  • Maksim V. Yakubovich
    • 1
  1. 1.Institute of Computational Modeling, SB of the RASAkademgorodok, KrasnoyarskRussian Federation
  2. 2.Tianjin University of Finance and EconomicsHexi District, TianjinChina

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