Search Results

This paper presents a novel control method for steady fluid flows, such as rivers and waterfalls, simulated using SPH. Our system allows the user to place target points through which the fluids should pass, and the fluid flows can be controlled with these ...

Total Lagrangian Smoothed Particle Hydrodynamics (TLSPH) is one variant of SPH where the variables are described using the fixed reference configuration and a Lagrangian smoothing kernel. TLSPH elevates the computational efficiency of the ...

• An alternative formulation for calculating deformation gradient to improve accuracy.
• The proposed method achieves an optimum convergence rate.
• Stability improvement to reduce the risk of encountering the zero-energy mode.
• ...

Recent refactoring of the GPUSPH codebase have uncovered some of the limitations of the official CUDA compiler (nvcc) offered by NVIDIA when dealing with some C++ constructs, which has shed some new light on the relative importance of the ...

• Neighbors list construction and traversal performance has a significant impact in SPH.
• Using different compilers can help identify missed optimization opportunities.
• Particle-centric may not be the most efficient parallelization ...

In the domain of Computational Fluid Dynamics (CFD), Smoothed Particle Hydrodynamics (SPH) has gained increasing popularity compared with traditional grid-based methods. We have seen an increasing demand to accelerate the SPH method with new ...

Particle-based boundary representations are frequently used in smoothed particle hydrodynamics (SPH) due to their simple integration into fluid solvers. Commonly, incompressible fluid solvers estimate the current density and corresponding forces ...

We model a slip boundary condition at fluid-solid interface of an arbitrary geometry in smoothed particle hydrodynamics and smoothed dissipative particle dynamics simulations. Under an assumption of linear profile of the tangential velocity at ...

• New algorithms for an arbitrary length of slip in smoothed particle dynamics methods.
• The methods work for a geometry of arbitrary shape at the fluid-solid interface.
• Computer simulations for particulate flows in microfluidic ...

We present a framework that captures sparse Lagrangian flow information from a volume of real liquid and reconstructs its detailed kinematic information in real time. Our framework can perform flow reconstruction even when the liquid is disturbed by an ...

We propose a multi-phase, multi-resolution SPH method for fluid/solid interaction with multi-GPU implementation and dynamic load balancing following the movement of the refinement regions. The primary design goal of this framework is to maintain ...

• A multi-GPU, multi-node implementation is developed using CUDA for the GPU execution.
• The efficiencies of the multi-GPU and multi-resolution model are presented and validated.
• The two-phase flow of three water entry cases of ...

In this paper, a new numerical method for simulating the breakup of ice floes in water waves will be presented. The method is based on Smoothed Particle Hydrodynamics (SPH) but several new numerical techniques are developed to address the ...

Segmentation of objects of interest is no longer a massive challenge with the adoption of machine learning and AI. However, feature selection and extraction are not trivial tasks in these approaches, and it is often necessary to introduce new ...$\mathrm{}$

SPH method due to its Lagrangian particle nature suffers from non-physical particle motion resulting from its numerical properties. We study these effects associated with solid walls realization.

We used stationary test case to investigate ...

• Comparison of multiple formulations for solid walls boundary conditions.
• Investigation of the sources of spurious particle movement.
• Study of accuracy for stationary hydrostatic case.

We present a proof-of-concept particle-based fluid–structure interaction (FSI) computational framework for modeling structural fracture and fragmentation under the impact of extreme hydrodynamic events. The smoothed particle hydrodynamics (SPH) ...

• First successful discretization of the unified model of continuum mechanics with an SPH scheme.

Smoothed Particle Hydrodynamics (SPH) methods are advantageous in simulations of fluids in domains with free boundary. Special SPH methods have also been developed to simulate solids. However, there are situations where the matter ...

In order to reconstruct initial flow field for particle methods based simulations for realistic complex engineering problems, this paper presents a isosurface extraction preprocessing tool for complex geometric 3D flow field using particle based methods ...

The inclusion of sensory effects in multimedia applications has the potential to increase the Quality of Experience (QoE) and improve users immersion. However, authoring such applications presents challenges arising from the need to control the ...

Implicit integration of the viscous term can significantly improve performance in computational fluid dynamics for highly viscous fluids such as lava. We show improvements over our previous proposal for semi-implicit viscous ...

• No symmetry required in the linear system associated to the implicit viscous term.

In the current study, an improved numerical model is proposed in the compressible fields based on Smoothed Particle Hydrodynamics (SPH), which is comprised of MUSCL interpolation in multiphase flow, enhanced particle regeneration technique (PRT) ...

• An enhanced particle regeneration technique is proposed to simulate compressible multiphase flows based on SPH.
• The mass conservation property is improved leading to the accurate detection of multiphase interface.
• The wave front ...

We comment on a recent article [Comput. Mech. 2020, 65, 487–502] about surface-tension modeling for free-surface flows with Smoothed Particle Hydrodynamics. The authors motivate part of their work related to a novel principal curvature ...

The use of particles-based simulations to produce fluid animations is nowadays a frequently used method by both the industrial and research sectors. Although there are many variations of the smoothed particle hydrodynamics (SPH) algorithm ...

SPH (Smoothed Particle Hydrodynamics) is a meshless method that is widely used to simulate computational fluid problems but is very time-consuming. Although many GPU-based solutions have been widely applied to accelerate the SPH method, the ...