The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON FLUID MECHANICS
Transactions ID Number: 28-380
Full Name: John Anagnostopoulos
Position: Assistant Professor
Age: ON
Sex: Male
Address: 9, Iroon Polytechniou ave., Zografou, 15780 Athens
Country: GREECE
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E-mail address: j.anagno@fluid.mech.ntua.gr
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Title of the Paper: Simulation of viscous flows with a gridless particle method
Authors as they appear in the Paper: Fotios G. Stamatelos and John S. Anagnostopoulos
Email addresses of all the authors: sfotis@fluid.mech.ntua.gr, j.anagno@fluid.mech.ntua.gr
Number of paper pages: 11
Abstract: Abstract: The aim of this paper is to present the numerical simulation of the evolution of the viscous, low Reynolds flows in two-dimensional cases with the use of the Smoothed Particle Hydrodynamics (SPH) method. This work is considered as the first step towards the simulation of complex three-dimensional flows, which occur in impulse water turbines. The method was originally developed for solving problems of astrophysical nature and belongs to the meshless methods, as it does not require any computational grid. A set of descrete fluid particles is used to represent the continuous fluid, and their trajectories are being calculated in a Lagrangian sense through time. The 2-D test cases examined in this paper are the Couette and the Poiseuille Flow, and the basic problem of the liquid column collapse (Dam Break). For the first two test cases the numerical results were tested against analytical solutions from the literature, while for the third test case experimental!
measurements were used for the validation of the calculations. The agreement of the numerical results with the corresponding analytical and experimental data is quite good and encouraging towards the use of the SPH method in modelling of more complex, unsteady and multiphase flow fields, while the performance of the algorithm referring to the speed of the calculations and the qualitative results is remarkable.
Keywords: Key-Words: - Smoothed Particle Hydrodynamics (SPH), Dam Break, Couette and Poiseuille Flow, Numerical Modelling
EXTENSION of the file: .pdf
Special (Invited) Session: Numerical modelling of laminar flows with the smoothed particle hydrodynamics method
Organizer of the Session: 595-615
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