Fluid-Structure Interactions Simulation and Visualization Using Isph Approach

Abdelnaim, A.; Hassaballah, M.; Aly, Abdelraheem M.

doi:10.1615/jflowvisimageproc.2019029921

Cited by 3 publications

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“…This study focuses on the smoothed particle hydrodynamics (SPH) method—a popular method in computer graphics for simulating complex fluid effects, which is a particle‐based Lagrangian method. The SPH is originally started with the simulation of the compressible flow and, then, special treatment are required to satisfy the incompressible condition in the quasi‐incompressible limit.…”

Section: Introductionmentioning

confidence: 99%

“…However, the grid-based Eulerian fluid simulation is preferred in various computer graphics applications, but it is not the optimal choice considering real-time and detailed fluid simulations. 18,19 This study focuses on the smoothed particle hydrodynamics (SPH) method 20 -a popular method in computer graphics for simulating complex fluid effects, 21,22 which is a particle-based Lagrangian method. The SPH is originally started with the simulation of the compressible flow and, then, special treatment are required to satisfy the incompressible condition in the quasi-incompressible limit.…”

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confidence: 99%

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Interactive fluid flow simulation in computer graphics using incompressible smoothed particle hydrodynamics

Hassaballah

Aly

Abdelnaim

2019

Computer Animation & Virtual

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Interactive simulations of fluids flow play an important role in several computer graphics‐based applications such as computer games, computer animation, movie industry, and virtual realities. The incompressible smoothed particle hydrodynamics (ISPH) model is a promising numerical scheme for large‐scale and large‐deformation simulations, where the pressure can be determined precisely by solving pressure Poisson equation (PPE). The three main shortcomings of the ISPH scheme are oscillating pressure, particles disorders, and particles penetrations through rigid boundary. In this paper, the stable pressure is obtained from modifications in the source term of PPE, in which the divergence‐free velocity condition plus density‐invariance condition multiply by a relaxation coefficient are included. The particles disorders are solved via utilizing a shifting technique with the current treatment of source term in PPE. Additionally, the dummy boundary particles are used for the rigid boundary treatment. For getting enough pressure on the boundary, the Neumann boundary condition is satisfied during the implicit solving processes. The performance of the stabilized ISPH model is tested on various numerical simulations with largely distorted free surface including liquid sloshing problems, fluid–fluid and fluid–structure interactions, and dam‐break flows. To extend the applicability of the stabilized ISPH model, the post process including visual realism with a highly rendering scheme is coupled. The coupled scheme introduces several simulations including free falling of a rigid body, water splashes, and dam break analysis. Furthermore, the proposed ISPH‐based method enables efficient and viscous fluid simulations with large time steps, higher viscosities, and resolutions, and it is a robust scheme in long interval simulations of nonlinear free‐surface flows.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Interactive fluid flow simulation in computer graphics using incompressible smoothed particle hydrodynamics

Hassaballah

Aly

Abdelnaim

2019

Computer Animation & Virtual

Self Cite

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Integrating artificial intelligence with numerical simulations of Cattaneo-Christov heat flux on thermosolutal convection of nano-enhanced phase change materials in Bézier-annulus

Elshehabey,

Aly,

Lee

et al. 2024

Journal of Energy Storage

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Automatic Registration Algorithm for the Point Clouds Based on the Optimized RANSAC and IWOA Algorithms for Robotic Manufacturing

Cui

Wang

et al. 2022

Applied Sciences

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In order to solve the problems of low accuracy and low efficiency of point cloud registration for stereo camera systems, we propose a binocular stereo camera point cloud registration method based on IWOA and Improved ICP. We propose the following approaches in this paper—the registration process is divided into two steps to complete the initial coarse registration and the exact registration. In the initial registration stage, an improved Whale Optimization Algorithm (IWOA) based on nonlinear convergence factor and adaptive weight coefficients was proposed to realize the initial registration in combination with the RANSAC algorithm, and the obtained transformation matrix was used as the initial estimate of the subsequent exact registration algorithm. In the second step of the exact registration stage, an IICP algorithm with the introduction of normal vector weighting constraints at key points was proposed for achieving point cloud exact registration. This algorithm was verified by using Stanford point clouds (bunnies and monkeys) and our own point clouds algorithm, and the proposed algorithm in this paper has high registration accuracy, improved registration speed, and convergence speed.

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Fluid-Structure Interactions Simulation and Visualization Using Isph Approach

Cited by 3 publications

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Interactive fluid flow simulation in computer graphics using incompressible smoothed particle hydrodynamics

Interactive fluid flow simulation in computer graphics using incompressible smoothed particle hydrodynamics

Integrating artificial intelligence with numerical simulations of Cattaneo-Christov heat flux on thermosolutal convection of nano-enhanced phase change materials in Bézier-annulus

Automatic Registration Algorithm for the Point Clouds Based on the Optimized RANSAC and IWOA Algorithms for Robotic Manufacturing

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