Advertisement

Application of smooth particle hydrodynamics (SPH) method in gravity casting shrinkage cavity prediction

  • Xiaofeng NiuEmail author
  • Jingyu Zhao
  • Baojian Wang
Article
  • 15 Downloads

Abstract

Gravity casting has been applied extensively. Cavity will occur in the casting and form shrinkage cavity in solidification due to volume reduction and lowering of liquid metal level, which will affect casting quality. The formation process of shrinkage cavity cannot be directly observed and needs to be displayed by using the numerical simulation method. The smoothed particle hydrodynamics (SPH) method is a pure Lagrange method with no grids and has now been applied in casting numerical simulation, but the prediction model of the shrinkage cavity in gravity casting solidification based on the SPH method has not been reported. In this paper, the mathematical model for temperature field (including latent heat treatment) and shrinkage cavity prediction in solidification is established based on the SPH method. The correctness for the temperature field (including latent heat treatment) is validated by computing temperature field in the solidification of an L-shaped aluminum alloy casting, and correctness for the prediction of shrinkage cavity is validated by computing the shrinkage cavity in the solidification of a cylindrical steel casting.

Keywords

Smooth particle hydrodynamics Shrinkage cavity Prediction Simulation 

Notes

Acknowledgements

This research has been financially supported by the National Natural Science Foundation of China (Nos. 51874209, 51574176); Major Research and Development Plan of Shanxi Province (International Cooperation Project) (201603D421028).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

References

  1. 1.
    He Y, Zhou Z, Cao W, Chen W (2011) Simulation of mould filling process using smoothed particle hydrodynamics. Trans Nonferrous Metals Soc China 21(12):2684–2692CrossRefGoogle Scholar
  2. 2.
    Colagrossi A, Landrini M (2003) Numerical simulation of interfacial flows by smoothed particle hydrodanamics. J Comput Phys 191(2):448–475CrossRefzbMATHGoogle Scholar
  3. 3.
    Hu XY, Adams NA (2007) An incompressible multi-phase SPH method. J Comput Phys 227(1):264–278CrossRefzbMATHGoogle Scholar
  4. 4.
    Chen FZ, Qiang HF, Gao WR (2017) A coupled SDPH–FVM method for gas-particle multi-phase flows: methodology. Int J Numer Meth Eng 109(1):73–101CrossRefGoogle Scholar
  5. 5.
    Han YW, Qiang HF, Huang QZ et al (2013) Improved Implicit SPH Method for simulating free surface flows of power law fluids. Sci China Technol Sci 56(10):2480–2490CrossRefGoogle Scholar
  6. 6.
    Hongfu Q, Chao S, Fuzhen C, Yawei H (2013) Simulation of two-dimensional droplet collisions based on SPH method of multi-phase flows with large density difference. Acta Phys Sin 62(21):214701Google Scholar
  7. 7.
    Yawei H, Hongfu Q (2012) An improved SPH method with physical viscosity and application in dam-break problem. Chin J Comput Phys 61(5):693–699Google Scholar
  8. 8.
    Niu XF, Song ZL, Fang Z, Hu L, Wang HX, Zhao JY (2018) Numerical simulation of casting filling process of composites reinforced with nano SiC based on smoothed particle hydrodynamics. J Nanosci Nanotechnol 18(12):8169–8177CrossRefGoogle Scholar
  9. 9.
    Hu MY, Cai JJ, Li N, Yu HL, Zhang Y, Sun B, Sun WL (2018) Flow modeling in high-pressure die-casting processes using SPH model. Int J Metalcast 12(1):97–105CrossRefGoogle Scholar
  10. 10.
    Cleary PW, Ha J, Prakash M, Nguyen T (2010) Short shots and industrial case studies: understanding fluid flow and solidification in high pressure die casting. Appl Math Model 34(8):2018–2033CrossRefGoogle Scholar
  11. 11.
    Cleary PW (2010) Extension of SPH to predict feeding, freezing and defect creation in low pressure die casting. Appl Math Model 34(11):3189–3201CrossRefzbMATHGoogle Scholar
  12. 12.
    Shoumei X, Qingyan X (2001) Simulation technology in casting. China Machine Press, BeijingGoogle Scholar
  13. 13.
    Qiang H (2017) New method and application of smooth particle hydrodynamics. China Science Publishing & Media Ltd., BeijingGoogle Scholar
  14. 14.
    Liu GR, Liu MB (2003) Smoothed particle hydrodynamics: a meshfree particle method. World Scientific Publishing Co Pte Ltd., SingaporeCrossRefzbMATHGoogle Scholar
  15. 15.
    Antuono M, Colagrossi A, Marrone S, Molteni D (2010) Free-surface flows solved by means of SPH schemes with numerical diffusive terms. Comput Phys Commun 181:532–549MathSciNetCrossRefzbMATHGoogle Scholar
  16. 16.
    Tiexiong S, Liqian Ma, Moubin L, Jianzhong C (2013) A numerical analysis of drop impact on solid surfaces by using smoothed particle hydrodynamics method. Acta Phys Sin 62(6):064702Google Scholar
  17. 17.
    Rook R, Yildiz M, Dost S (2007) Modeling transient heat transfer using SPH and implicit time integration. Numer Heat Transf 51:1–23CrossRefGoogle Scholar
  18. 18.
    Cleary PW, Monaghan JJ (1999) Conduction modeling using smoothed particle hydrodynamics. J Comput Phys 148:227–264MathSciNetCrossRefzbMATHGoogle Scholar
  19. 19.
    Hu MY, Cai JJ, Li N, Yu HL et al (2018) Flow modeling in high-pressure die-casting processes using SPH model international. Int J Metalcast 12(1):97–105CrossRefGoogle Scholar
  20. 20.
    Sui D, Cui Z (2008) Numerical simulation of 3D transient temperature field in aluminum alloy solidification process. Chin J Nonferrous Metals 18(7):1311–1316Google Scholar
  21. 21.
    Hua H, Hongkui M, Guowei Z (2008) Computer simulation in casting. National Defense Industry Press, BeijingGoogle Scholar

Copyright information

© OWZ 2019

Authors and Affiliations

  1. 1.College of Materials Science and EngineeringTaiyuan University of TechnologyTaiyuanChina
  2. 2.AAC TechnologiesChangzhouChina

Personalised recommendations