TY - GEN
T1 - A study of violent water induced impact problems using ISPH method
AU - Aly, Abdelraheem M.
AU - Asai, Mitsuteru
AU - Sonoda, Yoshimi
PY - 2011
Y1 - 2011
N2 - In this study, violent water induced impact problems are simulated by using incompressible SPH (ISPH) method. In the framework of ISPH method, there are several models, which have different source term in their pressure Poisson equation. The conventional source terms are velocity divergence free formulation called by "Truly incompressible SPH model" and density invariance formulation. In addition, we have proposed a relaxed density invariance formulation incorporated with divergence free term. This formulation is called 'stabilized ISPH' in this paper. Boundary condition using dummy particles with slip condition is introduced to prevent penetration and adjust wave velocity and profile compare to experimental results. The same formulation of the stabilized ISPH including the turbulence model is applied into the impact pressure evaluation for inclined dam break in two and three dimensions. Comparison between the proposed model and experimental results is performed and it has a reasonable agreement.
AB - In this study, violent water induced impact problems are simulated by using incompressible SPH (ISPH) method. In the framework of ISPH method, there are several models, which have different source term in their pressure Poisson equation. The conventional source terms are velocity divergence free formulation called by "Truly incompressible SPH model" and density invariance formulation. In addition, we have proposed a relaxed density invariance formulation incorporated with divergence free term. This formulation is called 'stabilized ISPH' in this paper. Boundary condition using dummy particles with slip condition is introduced to prevent penetration and adjust wave velocity and profile compare to experimental results. The same formulation of the stabilized ISPH including the turbulence model is applied into the impact pressure evaluation for inclined dam break in two and three dimensions. Comparison between the proposed model and experimental results is performed and it has a reasonable agreement.
KW - Free surface flow
KW - ISPH method
KW - Inclined plane
KW - Pressure Poisson equation
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M3 - Conference contribution
AN - SCOPUS:84861016317
SN - 9789810895297
T3 - Proceedings of the 9th International Conference on Shock and Impact Loads on Structures
SP - 217
EP - 224
BT - Proceedings of the 9th International Conference on Shock and Impact Loads on Structures
T2 - 9th International Conference on Shock and Impact Loads on Structures
Y2 - 16 November 2011 through 18 November 2011
ER -