Zobrazeno 1 - 10
of 153
pro vyhledávání: '"HAIDN, Oskar J."'
The standard smoothed particle hydrodynamics (SPH) method suffers from tensile instability, resulting in particle clumping and void regions under negative pressure conditions. In this study, we extend the transport-velocity formulation of Adami et al
Externí odkaz:
http://arxiv.org/abs/2411.13992
The nonlinear damping characteristics of the oscillating wave surge converter (OWSC) significantly impact the performance of the power take-off system. This study presents a framework by integrating deep reinforcement learning (DRL) with numerical si
Externí odkaz:
http://arxiv.org/abs/2410.08871
Fluid-structure interaction (FSI) problems are characterized by strong nonlinearities arising from complex interactions between fluids and structures. These pose significant challenges for traditional control strategies in optimizing structural motio
Externí odkaz:
http://arxiv.org/abs/2409.20134
In the smoothed particle dynamics (SPH) method, the characteristics of a target particle are interpolated based on the information from its neighboring particles. Consequently, a uniform initial distribution of particles significantly enhances the ac
Externí odkaz:
http://arxiv.org/abs/2409.17795
In this paper, a fluid-structure interaction (FSI) framework based on the smoothed particle hydrodynamics (SPH) method is employed to investigate the forces and deformations experienced by LNG tanks during liquid sloshing. As a Lagrangian approach, t
Externí odkaz:
http://arxiv.org/abs/2409.16226
In smoothed particle hydrodynamics (SPH) method, the particle-based approximations are implemented via kernel functions, and the evaluation of performance involves two key criteria: numerical accuracy and computational efficiency. In the SPH communit
Externí odkaz:
http://arxiv.org/abs/2405.05155
Finite volume method (FVM) is a widely used mesh-based technique, renowned for its computational efficiency and accuracy but it bears significant drawbacks, particularly in mesh generation and handling complex boundary interfaces or conditions. On th
Externí odkaz:
http://arxiv.org/abs/2312.03542
Eulerian smoothed particle hydrodynamics (Eulerian SPH) is considered as a potential meshless alternative to a traditional Eulerian mesh-based method, i.e. finite volume method (FVM), in computational fluid dynamics (CFD). While researchers have anal
Externí odkaz:
http://arxiv.org/abs/2309.01596
The error of smoothed particle hydrodynamics (SPH) using kernel for particle-based approximation mainly comes from smoothing and integration errors. The choice of kernels has a significant impact on the numerical accuracy, stability and computational
Externí odkaz:
http://arxiv.org/abs/2309.01581
Publikováno v:
Computer Physics Communications, Volume 289, August 2023, 108744
Obtaining high quality particle distribution representing clean geometry in pre-processing is essential for the simulation accuracy of the particle-based methods. In this paper, several level-set based techniques for cleaning up `dirty' geometries au
Externí odkaz:
http://arxiv.org/abs/2209.04424