A new treatment for boundary of laminar flow inlet or outlet in SPH

被引：0
作者：
Liang, Chaoxiang [1 ]
Huang, Jihong [1 ]
Shi, Wei [2 ]
机构：
[1] Department of Computer Science, Wuzhou University, Wuzhou
[2] Department of Mathematics and Physics, Wuzhou University, Wuzhou
来源：
Journal of Software Engineering | 2014年 / 8卷 / 04期
关键词：
Boundary treatment; Inlet or outlet boundary; Laminar flow boundary; Numerical simulation; Smoothed particle hydrodynamics; Virtual following particle;
D O I：
10.3923/jse.2014.321.327
中图分类号：
学科分类号：
摘要：
A new method is proposed instead of the periodic boundary conditions in this study which treats the inlet or outlet boundaries with virtual following particles in the Smoothed Particle Hydrodynamics (SPH). The virtual following particles are those located outside the inlet or outlet boundaries and their velocities and positions are updated according to the corresponding interior particles. This method bases on the analysis of characteristics of laminar flow and is able to be applied in low Reynolds number flow which is laminar flow in the inlet or/and outlet boundaries. The Poiseuille flow and two-dimensional flow between two inclined plates are simulated, respectively with the proposed method and the results are in good agreement with theoretical values. © 2014 Academic Journals Inc.
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页码：321 / 327
页数：6
相关论文
共 7 条
  • [1] Liang C.X., Zhang C.Y., Liu H.Y., Qm Z.R., Wang Q., Modeling low Reynolds number incompressible flows with curved boundaries using SPH, Int. J. Numer. Methods Fluids, 68, pp. 1173-1188, (2012)
  • [2] Lin J.Z., Ruan X.D., Chen B.G., Fluid Mechanics, pp. 263-270, (2005)
  • [3] Liu G.R., Liu M.B., Smoothed Particle Hydrodynamics: A Meshfree Practical Method, pp. 134-137, (2003)
  • [4] Liu M.B., Xie W.P., Liu G.R., Modeling incompressible flows using a finite particle method, Applied Math. Model!, 29, pp. 1252-1270, (2005)
  • [5] Monaghan J.J., Simulating free surface flows with SPH, J. Comput. Phys., 110, pp. 399-406, (1994)
  • [6] Morris J.P., Fox P.J., Zhu Y., Modeling low Reynolds number incompressible flows using SPH, J. Comput. Phys, 136, pp. 214-226, (1997)
  • [7] Rafiee A., Manzari M.T., Hosseini M., An incompressible SPH method for simulation of unsteady viscoelastic free-surface flows, Int. J. Non-Linear Mech, 42, pp. 1210-1223, (2007)
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