In this paper, a fully Lagrangian particle-based method for coupled fluid-particle interaction is utilized to evaluate liquefaction of saturated granular soils subjected dynamic base excitations. The discrete element (DEM) employed model the solid particles and fluid motion simulated using smoothed particle hydrodynamics (SPH). A SPH-DEM scheme achieved through local averaging techniques well-e...

The smoothed particle hydrodynamics (SPH) method was employed to simulate the heat transfer process in porous media at pore scale. effective thermal conductivity of a medium can be predicted through simulation experiment SPH. accuracy SPH verified by comparing values with reference for ideal homogeneous and multiphase layered media. 3D experiments were implemented granular generated PFC method....

Smoothed particle hydrodynamics is a completely mesh-free method to simulate fluid flow. Rather than representing the physical variables on a fixed grid, the fluid is represented by freely moving interpolation centers (”particles”). Apart from their position and velocity these particles carry information about the physical quantities of the considered fluid, such as temperature, composition, ch...

Liquid sloshing is a common phenomenon in the transporting of liquid tanks. Liquid waves lead to fluctuating forces on the tank wall. If these fluctuations are not predicted or controlled, they can lead to large forces and momentum. Baffles can control liquid sloshing fluctuations. One numerical method, widely used to model the liquid sloshing phenomena is Smoothed Particle Hydrodynamics (SPH)....

This paper presents a generalised and efficient wall boundary treatment in the smoothed particle hydrodynamics (SPH) method for 3-D complex arbitrary geometries with single- multi-phase flows to be executed on graphics processing units (GPUs). Using force balance between fluid particles novel penalty method, pressure condition is applied dummy which effectively prevents non-physical penetration...

In this paper we propose an accurate, and computationally efficient method for incorporating adaptive spatial resolution into weakly-compressible Smoothed Particle Hydrodynamics (SPH) schemes. Particles are adaptively split merged in accurate manner. Critically, the ensures that number of neighbors each particle is optimal, leading to algorithm. A set background particles used specify either ge...

To simulate the dynamics of fluid with polydisperse particles on macroscale level, one has to solve hydrodynamic equations several relaxation terms, representing momentum transfer from and vice versa. For small particles, velocity time (stopping time) can be much shorter than dynamical that makes this problem stiff thus computationally expensive. We present a new fast method for computing drag ...

W ithin this thesis, the Computational Fluid Dynamics method Smoothed Particle Hydrodynamics (SPH) is applied to simulate bubble induced mixing in wastewater treatment plants for the first time. To do so, a new SPH multiphase algorithm is presented that is especially designed to be very cheap in terms of computational costs and solves the problem that air bubbles are only stable for a short tim...

The increasing flash flood hazards in major cities like Kuala Lumpur have caused tremendous damages to the society and this requires more essential countermeasures to be implemented. With the advancement in 3D Computer Graphics and fluid simulation technologies, movie experts can now produce realistic visual effects for fluid objects such as water. This paper describes a study made to model and...

High-speed cold spraying of micro-particles, at temperatures well below their melting point, impinging on desired substrates is a useful emerging additive process. One principal element believed to dramatically influence the bonding strength and final coating quality many metallic cold-spray deposits native oxide layer surface particles substrate. Here, smoothed-particle hydrodynamics (SPH), me...