Simulation of casting filling process using the lattice Boltzmann method

Y J Zhang, X W Qian, J X Zhou, Y J Yin, X Shen, X. Y. Ji, J L Huang

Research output: Contribution to journalConference article

Abstract

Numerical simulation of casting filling process with complex shape is time-consuming. Compared with the traditional SOLA-VOF method, the lattice Boltzmann method (LBM) calculates the pressure field by particle distribution functions instead of the correction of the velocity and pressure fields, which greatly simplifies the calculation process. In addition, the LBM provides a flexible approach which can be easily parallelized. In this study, the LBM is employed to simulate casting filling process. An implementation of a volume-of-fluid (VOF) method within the lattice Boltzmann framework is proposed to capture the free surface of the casting filling process. A Smagorinsky large eddy simulation (LES) model is adopted to improve the numerical stability of the LBM. An adaptive time stepping technique is implemented to ensure an efficient and stable simulation. The model is validated by the experimental and simulation results of Campbell box filling process. The filling process of complex casting is simulated, and the result is compared with the filling process obtained by the SOLA-VOF method. The prediction accuracy and reliability of free surface profile is analysed.

Fingerprint

Casting
Fluids
Convergence of numerical methods
Large eddy simulation
Distribution functions
Computer simulation

Keywords

  • numerical simulation
  • lattice Boltzmann method
  • casting filling process
  • volume of fluid method
  • large eddy simulation

Cite this

Zhang, Y J ; Qian, X W ; Zhou, J X ; Yin, Y J ; Shen, X ; Ji, X. Y. ; Huang, J L. / Simulation of casting filling process using the lattice Boltzmann method. In: IOP Conference Series: Materials Science and Engineering. 2019 ; Vol. 529, No. 1.
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title = "Simulation of casting filling process using the lattice Boltzmann method",
abstract = "Numerical simulation of casting filling process with complex shape is time-consuming. Compared with the traditional SOLA-VOF method, the lattice Boltzmann method (LBM) calculates the pressure field by particle distribution functions instead of the correction of the velocity and pressure fields, which greatly simplifies the calculation process. In addition, the LBM provides a flexible approach which can be easily parallelized. In this study, the LBM is employed to simulate casting filling process. An implementation of a volume-of-fluid (VOF) method within the lattice Boltzmann framework is proposed to capture the free surface of the casting filling process. A Smagorinsky large eddy simulation (LES) model is adopted to improve the numerical stability of the LBM. An adaptive time stepping technique is implemented to ensure an efficient and stable simulation. The model is validated by the experimental and simulation results of Campbell box filling process. The filling process of complex casting is simulated, and the result is compared with the filling process obtained by the SOLA-VOF method. The prediction accuracy and reliability of free surface profile is analysed.",
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Simulation of casting filling process using the lattice Boltzmann method. / Zhang, Y J; Qian, X W; Zhou, J X; Yin, Y J; Shen, X; Ji, X. Y.; Huang, J L.

In: IOP Conference Series: Materials Science and Engineering, Vol. 529, No. 1, 012061, 17.06.2019.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Simulation of casting filling process using the lattice Boltzmann method

AU - Zhang, Y J

AU - Qian, X W

AU - Zhou, J X

AU - Yin, Y J

AU - Shen, X

AU - Ji, X. Y.

AU - Huang, J L

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N2 - Numerical simulation of casting filling process with complex shape is time-consuming. Compared with the traditional SOLA-VOF method, the lattice Boltzmann method (LBM) calculates the pressure field by particle distribution functions instead of the correction of the velocity and pressure fields, which greatly simplifies the calculation process. In addition, the LBM provides a flexible approach which can be easily parallelized. In this study, the LBM is employed to simulate casting filling process. An implementation of a volume-of-fluid (VOF) method within the lattice Boltzmann framework is proposed to capture the free surface of the casting filling process. A Smagorinsky large eddy simulation (LES) model is adopted to improve the numerical stability of the LBM. An adaptive time stepping technique is implemented to ensure an efficient and stable simulation. The model is validated by the experimental and simulation results of Campbell box filling process. The filling process of complex casting is simulated, and the result is compared with the filling process obtained by the SOLA-VOF method. The prediction accuracy and reliability of free surface profile is analysed.

AB - Numerical simulation of casting filling process with complex shape is time-consuming. Compared with the traditional SOLA-VOF method, the lattice Boltzmann method (LBM) calculates the pressure field by particle distribution functions instead of the correction of the velocity and pressure fields, which greatly simplifies the calculation process. In addition, the LBM provides a flexible approach which can be easily parallelized. In this study, the LBM is employed to simulate casting filling process. An implementation of a volume-of-fluid (VOF) method within the lattice Boltzmann framework is proposed to capture the free surface of the casting filling process. A Smagorinsky large eddy simulation (LES) model is adopted to improve the numerical stability of the LBM. An adaptive time stepping technique is implemented to ensure an efficient and stable simulation. The model is validated by the experimental and simulation results of Campbell box filling process. The filling process of complex casting is simulated, and the result is compared with the filling process obtained by the SOLA-VOF method. The prediction accuracy and reliability of free surface profile is analysed.

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