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A fully-decoupled energy stable scheme for the phase-field model of non-Newtonian two-phase flows

  • Received: 16 April 2024 Revised: 14 May 2024 Accepted: 23 May 2024 Published: 12 June 2024
  • MSC : 65M06, 65M12, 82C26

  • In this paper, we first propose a novel fully-decoupled, linear and second-order time accurate scheme to solve the phase-field model of non-Newtonian two-phase flows; the developed scheme is based on a stabilized Scalar Auxiliary Variable (SAV) approach. We strictly prove the unconditional energy stability of the scheme and conduct a numerical simulation to show the accuracy and stability of the proposed scheme. Moreover, we can observe that the parameter $ r $ in non-Newtonian fluids can affect spatial patterns during phase transitions, which directly enables us to design and perform optimal control experiments in engineering processes.

    Citation: Wei Li, Guangying Lv. A fully-decoupled energy stable scheme for the phase-field model of non-Newtonian two-phase flows[J]. AIMS Mathematics, 2024, 9(7): 19385-19396. doi: 10.3934/math.2024944

    Related Papers:

  • In this paper, we first propose a novel fully-decoupled, linear and second-order time accurate scheme to solve the phase-field model of non-Newtonian two-phase flows; the developed scheme is based on a stabilized Scalar Auxiliary Variable (SAV) approach. We strictly prove the unconditional energy stability of the scheme and conduct a numerical simulation to show the accuracy and stability of the proposed scheme. Moreover, we can observe that the parameter $ r $ in non-Newtonian fluids can affect spatial patterns during phase transitions, which directly enables us to design and perform optimal control experiments in engineering processes.



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