Journal ArticleDOI
Incompressible sph method for simulating newtonian and non-newtonian flows with a free surface
Songdong Shao,Edmond Y.M. Lo +1 more
TLDR
In this article, an incompressible smoothed particle hydrodynamics (SPH) method is presented to simulate Newtonian and non-Newtonian flows with free surfaces.About:
This article is published in Advances in Water Resources.The article was published on 2003-07-01. It has received 923 citations till now. The article focuses on the topics: Pressure-correction method & Newtonian fluid.read more
Citations
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Study on coupled dynamics of ship and flooding water based on experimental and SPH methods
H. Cheng,A-Man Zhang,Fu-Ren Ming +2 more
TL;DR: In this article, the authors studied the fluid dynamics during the flooding of a damaged ship numerically and experimentally, focusing on the fluid flow characteristics and the fluid-structure interactions.
Journal ArticleDOI
Analysis of the artificial viscosity in the smoothed particle hydrodynamics modelling of regular waves
Abstract: This paper considers the effect of artificial viscosity in smoothed particle hydrodynamics (SPH) computations of six different regular waves. The purpose is to improve the modelling of physically real effects and thereby make SPH a more attractive modelling option. The essence of the proposed method is to avoid running the simulation with different values of the empirical coefficient used in artificial viscosity in order to find the optimum value of this parameter for a given problem. Thorough calibration of the SPH's numerical parameters is performed through the comparison between numerical and experimental data. Among the various parameters involved, the smoothing length and the particle resolution are important in shaping the results. The analysis confirms that when the ratio of particle spacing to smoothing length and the particle resolution useful for different computational domains have been defined, the empirical coefficient depends only on the type of wave breaking in term of the Irribarre...
Journal ArticleDOI
An ISPH scheme for numerical simulation of multiphase flows with complex interfaces and high density ratios
TL;DR: Comparisons indicate that the proposed Incompressible Smoothed Particle Hydrodynamics scheme is robust and capable of simulating a wide range of multiphase problems with complex interfaces including low to high ratios for density and viscosity.
Journal ArticleDOI
Simulation of wave overtopping using an improved SPH method
TL;DR: In this article, an improved smoothed particle hydrodynamics (SPH) method is used to study wave overtopping for different coastal structures, including dam break, solitary wave breaking and wave over-topping at vertical and sloping seawalls.
Journal ArticleDOI
An incompressible SPH scheme with improved pressure predictions for free-surface generalised Newtonian flows
TL;DR: In this article, the diffusion-based incompressible SPH (ISPH) method is extended to solve inelastic non-Newtonian flows, introducing standard viscosity calculation techniques for the non-newtonian fluids and adopting a new viscous term which is more suitable for the calculation of such flows.
References
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Journal ArticleDOI
Volume of fluid (VOF) method for the dynamics of free boundaries
C.W Hirt,B. D. Nichols +1 more
TL;DR: In this paper, the concept of a fractional volume of fluid (VOF) has been used to approximate free boundaries in finite-difference numerical simulations, which is shown to be more flexible and efficient than other methods for treating complicated free boundary configurations.
Journal ArticleDOI
Numerical Calculation of Time‐Dependent Viscous Incompressible Flow of Fluid with Free Surface
Francis H. Harlow,J. Eddie Welch +1 more
TL;DR: In this paper, a new technique is described for the numerical investigation of the time-dependent flow of an incompressible fluid, the boundary of which is partially confined and partially free The full Navier-Stokes equations are written in finite-difference form, and the solution is accomplished by finite-time step advancement.
Journal ArticleDOI
A numerical approach to the testing of the fission hypothesis.
TL;DR: A finite-size particle scheme for the numerical solution of two-and three-dimensional gas dynamical problems of astronomical interest is described and tested in this article, which is then applied to the fission problem for optically thick protostars.
Journal ArticleDOI
Numerical solution of the Navier-Stokes equations
TL;DR: In this paper, a finite-difference method for solving the time-dependent Navier-Stokes equations for an incompressible fluid is introduced, which is equally applicable to problems in two and three space dimensions.
Journal ArticleDOI
Smoothed particle hydrodynamics.
TL;DR: In this paper, the theory and application of Smoothed particle hydrodynamics (SPH) since its inception in 1977 are discussed, focusing on the strengths and weaknesses, the analogy with particle dynamics and the numerous areas where SPH has been successfully applied.
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