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We present a new particle-based method for high viscosity fluid simulation. In the method, a new elastic stress term, which is derived from a modified form of the Hooke's law, is included in the traditional Navier-Stokes equation to simulate the movements of the high viscosity fluids. Benefiting from the Lagrangian nature of Smoothed Particle Hydrodynamics method, large flow deformation can be well...
A fluid dynamic algorithm based on smoothed particle hydrodynamics (SPH) is proposed for coordination of a team of unmanned aerial vehicles (UAVs) in a wireless sensor network. SPH is a Lagrangian particle method typically used to model compressible and quasi-incompressible fluid flows. In this study, SPH is used to develop a decentralized controller for a swarm of fixed-wing UAVs, which move in 3-D...
Fluid simulations based on Smoothed Particle Hydrodynamics (SPH) have been widely used for generating complex motion of fluid.However,implementation of searching particle neighbors on graphics processing unit (GPU) can not be satisfied till now.In this paper, we present a new grid-based neighbor search method on GPU for GPU-based SPH fluid simulation.Using this new GPU-based neighbor search technique...
In this paper, a particle-based simulation method for the immiscible liquid-liquid interaction is proposed. Through establishing an interfacial tension model for multiple liquids and using the essential method of the Smoothed Particle Hydrodynamics, the immiscible effects in the interaction simulation for multiple liquids can be embodied realistically. The experimental results verify the validity...
Appropriate dealing with boundary conditions is very important for SPH. Current boundary treatment methods like boundary force method, ghost particle method and virtual boundary layer method, when dealing with complex boundaries, they will have to compute much on putting external particles. For resolving this problem, we propose a new method assuming part of boundary surface instead of external particles,...
Through adding stress tensors into the Navier-Stokes equations, in this paper a non-Newtonian fluid simulation model is presented, it profits from the essential method of smoothed particle hydrodynamics, and can exhibit concurrently viscosity, elasticity and plasticity of non-Newtonian fluid, thereby a unified model for simulating non-Newtonian fluid is established. The proposed model are tested under...
We present a novel method using particle importance to accelerate the traditional smoothed particle hydrodynamics based fluid simulation. Reynolds number and vorticity are exploited as the new criteria to evaluate the importance for each particle. If a particle is unimportant, its current acceleration and velocity are used to update values in the next time step with the complex state updating step...
Lava flow simulation is a sophisticated and complex phenomenon because a lot of parameters involved. A method employed to simulating lava flow is a Lagrangian approach which sees lava as fluid composed by particle system. Smoothed Particle Hydrodynamics (SPH) method is implemented for interaction between particles which is setting fluid components. Physical parameters obtained by particle based fluid,...
Two-phase flow problems are presented using the method of smoothed particle hydrodynamics (SPH). The combination of meshless and lagrangian nature inherent in the SPH method offers the advantages in treating large deformations, large inhomogeneities and tracing interfaces in the two-phase flow process. Two cases are solved using a SPH code developed at ACES. It is found that major physics of the two-phase...
An efficient smoothed particle hydrodynamics (SPH) method for duct conveying is proposed. The combination of meshless and Lagrangian nature inherent in the SPH methodology avoids the disadvantages of traditional numerical methods in treating large deformations, large inhomogeneities and tracing free surfaces in the duct conveying process. Major physics of the duct conveying can be well captured in...
In this paper, we present a novel method for simulating middle- and small-scale details of incompressible viscous fluids and solid coupling. To animate the fluid model, we use the Smoothed Particle Hydrodynamics (SPH) method, which models the flow as a particle system in middle-scale, and based on it, we focus on the interaction between water and solid surface, especially the effects of absorption...
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