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A consistent incompressible SPH method for internal flows with fixed and moving boundaries

Jahangiri Mamouri, S ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1002/fld.4196
  3. Publisher: John Wiley and Sons Ltd
  4. Abstract:
  5. An improved incompressible smoothed particle hydrodynamics (ISPH) method is presented, which employs first-order consistent discretization schemes both for the first-order and second-order spatial derivatives. A recently introduced wall boundary condition is implemented in the context of ISPH method, which does not rely on using dummy particles and, as a result, can be applied more efficiently and with less computational complexity. To assess the accuracy and computational efficiency of this improved ISPH method, a number of two-dimensional incompressible laminar internal flow benchmark problems are solved and the results are compared with available analytical solutions and numerical data. It is shown that using smaller smoothing lengths, the proposed method can provide desirable accuracies with relatively less computational cost for two-dimensional problems
  6. Keywords:
  7. Consistency ; Smoothed Particle Hydrodynamics (SPH) ; Computational efficiency ; Copyrights ; Fluid dynamics ; Incompressible flow ; Numerical methods ; Bench-mark problems ; Computational costs ; Discretization scheme ; Smoothing length ; Two-dimensional problem ; Wall boundary condition ; Hydrodynamics
  8. Source: International Journal for Numerical Methods in Fluids ; Volume 81, Issue 10 , 2016 , Pages 589-610 ; 02712091 (ISSN)
  9. URL: http://onlinelibrary.wiley.com/doi/10.1002/fld.4196/full