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.
| Language | English |
|---|---|
| Article number | 012061 |
| Number of pages | 6 |
| Journal | IOP Conference Series: Materials Science and Engineering |
| Volume | 529 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 17 Jun 2019 |
| Event | Joint 5th International Conference on Advances in Solidification Processes, ICASP 2019 and 5th International Symposium on Cutting Edge of Computer Simulation of Solidification, Casting and Refining, CSSCR 2019 - Salzburg, Austria Duration: 17 Jun 2019 → 21 Jun 2019 |
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Keywords
- numerical simulation
- lattice Boltzmann method
- casting filling process
- volume of fluid method
- large eddy simulation
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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 journal › Conference 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
PY - 2019/6/17
Y1 - 2019/6/17
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.
KW - numerical simulation
KW - lattice Boltzmann method
KW - casting filling process
KW - volume of fluid method
KW - large eddy simulation
UR - http://www.scopus.com/inward/record.url?scp=85067881849&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/529/1/012061
DO - 10.1088/1757-899X/529/1/012061
M3 - Conference article
VL - 529
JO - IOP Conference Series: Materials Science and Engineering
T2 - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
SN - 1757-8981
IS - 1
M1 - 012061
ER -