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Numerical analysis of the solutions for 1d compressible viscous micropolar fluid flow with different boundary conditions

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  • Črnjarić-Žic, Nelida
  • Mujaković, Nermina

Abstract

The intention of this work is to concern the numerical solutions to the model of the nonstationary 1d micropolar compressible viscous and heat conducting fluid flow that is in the thermodynamical sense perfect and polytropic. The mathematical model consists of four partial differential equations, transformed from the Eulerian to the Lagrangian description, and which are associated with different boundary conditions. By using the finite difference scheme and the Faedo–Galerkin method we make different numerical simulations to the results of our problems. The properties of both numerical schemes are analyzed and numerical results are compared on the chosen test examples. The comparison of the numerical results on problems that have the homogeneous or the non-homogeneous boundary conditions for velocity and microrotation show good agreement of both approaches. However, the advantage of the used finite difference method over the Faedo–Galerkin method lies in the simple implementation of the non-homogeneous boundary conditions and in the possibility of approximation of the free boundary problem on which the Faedo–Galerkin method is not applicable.

Suggested Citation

  • Črnjarić-Žic, Nelida & Mujaković, Nermina, 2016. "Numerical analysis of the solutions for 1d compressible viscous micropolar fluid flow with different boundary conditions," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 126(C), pages 45-62.
    • Handle: RePEc:eee:matcom:v:126:y:2016:i:c:p:45-62
    DOI: 10.1016/j.matcom.2016.03.001
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    Cited by:

    1. Dražić, Ivan & Mujaković, Nermina & Črnjarić-Žic, Nelida, 2017. "Three-dimensional compressible viscous micropolar fluid with cylindrical symmetry: Derivation of the model and a numerical solution," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 140(C), pages 107-124.
    2. Dražić, Ivan & Črnjarić-Žic, Nelida & Simčić, Loredana, 2019. "A shear flow problem for compressible viscous micropolar fluid: Derivation of the model and numerical solution," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 162(C), pages 249-267.

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