Review on the local weak form-based meshless method (MLPG): Developments and Applications in Ocean Engineering

Sriram, V.; Ma, Qingwei

doi:10.1016/j.apor.2021.102883

Cited by 15 publications

(3 citation statements)

References 98 publications

(53 reference statements)

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“…Nevertheless, many studies have applied numerical models to address such tsunami flow structure interaction problems in the past. Regularly applied methods that have been used in the tsunami interaction studies are the Finite Volume method [45][46][47], the Arbitrary Lagrangian-Eulerian method [48], the Finite Element method [49], the coupled FEM and meshless method [50,51], the coupled FEM and FVM methods [52] and particle-based methods, such as the Smoothed Particle Hydrodynamics [53], the Moving Semi-Implicit method and the Meshless Local Petrov Galerkin method [50,54]. With increasing computational resources in recent decades, numerical simulations can provide a more in-depth understanding of flow interaction processes [55,56].…”

Section: Introductionmentioning

confidence: 99%

Tsunami-like Flow-Induced Forces on the Landward Structure behind a Vertical Seawall with and without Recurve Using OpenFOAM

Harish

Sriram

Schüttrumpf

et al. 2022

Water

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It is more common to introduce the parapet/recurve/wave return wall over the existing structure, such as a vertical seawall or composite structure, to reduce the overtopping efficiently. The advantage of a recurve wall on top of the sea wall has been studied in the past in regards to wave interaction and overtopping. However, their efficiency in protecting the inland structure during extreme events such as flooding during a tsunami is unexplored. The present study addresses the effect of a vertical seawall with recurve in reducing the dam break surge simulating tsunami-induced forces on an inland structure. The study compares the momentum transferred on the landward structure behind a Vertical seaWall (VW) and a vertical wall with the Large ReCurve on the top (LRC) during overtopped conditions. The outcome from the numerical simulation shows an insignificant contribution due to the LRC in reducing the force on the inland structure compared to the VW, albeit delaying the impact time. However, the LRC performed slightly better in the case of a low-rise wall located near the inland structure than the VW. Furthermore, a low-rise VW increases the force and overturning moment on the inland structure compared to no-wall conditions. Both the LRC and the VW reduced the horizontal force on the structure linearly with the increase in height. An exponential decrease in the overturning moment was observed on the landward structure with the increase in the height of the VW or the LRC. Design equations are proposed for the forces and overturning moment reduction based on the height of the VW or the LRC.

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Section: Introductionmentioning

confidence: 99%

Tsunami-like Flow-Induced Forces on the Landward Structure behind a Vertical Seawall with and without Recurve Using OpenFOAM

Harish

Sriram

Schüttrumpf

et al. 2022

Water

Self Cite

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“…Application of MLPG includes steady state (Wu and Tao, 2008) and non linear heat conduction (Batra et al, 2004;Thakur, 2021), natural convection (Aredfmanesh et al, 2010;Sheikhi et al, 2018), radiative heat transfer (Liu, 2006;Tian and Rao, 2012), phase change problems (Morimoto et al, 2016;Thakur et al, 2011), elastostatics (Atluri and Zhu, 2000;Sladek et al, 2004), elastodynamics (Gu and Liu, 2001;Sladek et al, 2003;Soares et al, 2009), crack propagation (Gao et al, 2006;Sladek et al, 2007), ocean engineering (Sriram and Ma, 2021), hydrology (Abdi et al, 2022;Mohtashami et al, 2022), solidification (Bouzgarrou et al, 2021) and multi-physics problems (Sladek et al, 2008). For a comprehensive review of MLPG applications, please refer to Atluri (2002), Sladek et al (2013), andSingh (2018).…”

Section: Introductionmentioning

confidence: 99%

“…, 2006; Sladek et al. , 2007), ocean engineering (Sriram and Ma, 2021), hydrology (Abdi et al. , 2022; Mohtashami et al.…”

Section: Introductionmentioning

confidence: 99%

OpenMP-based parallel MLPG solver for analysis of heat conduction

Singh,

Singh

2024

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PurposeIn the present work, we focus on developing an in-house parallel meshless local Petrov-Galerkin (MLPG) code for the analysis of heat conduction in two-dimensional and three-dimensional regular as well as complex geometries.Design/methodology/approachThe parallel MLPG code has been implemented using open multi-processing (OpenMP) application programming interface (API) on the shared memory multicore CPU architecture. Numerical simulations have been performed to find the critical regions of the serial code, and an OpenMP-based parallel MLPG code is developed, considering the critical regions of the sequential code.FindingsBased on performance parameters such as speed-up and parallel efficiency, the credibility of the parallelization procedure has been established. Maximum speed-up and parallel efficiency are 10.94 and 0.92 for regular three-dimensional geometry (343,000 nodes). Results demonstrate the suitability of parallelization for larger nodes as parallel efficiency and speed-up are more for the larger nodes.Originality/valueFew attempts have been made in parallel implementation of the MLPG method for solving large-scale industrial problems. Although the literature suggests that message-passing interface (MPI) based parallel MLPG codes have been developed, the OpenMP model has rarely been touched. This work is an attempt at the development of OpenMP-based parallel MLPG code for the very first time.

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Analysis of Navier–Stokes equations by a BC/GE embedded local meshless method

Young

2023

Acta Mech

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Review on the local weak form-based meshless method (MLPG): Developments and Applications in Ocean Engineering

Cited by 15 publications

References 98 publications

Tsunami-like Flow-Induced Forces on the Landward Structure behind a Vertical Seawall with and without Recurve Using OpenFOAM

Tsunami-like Flow-Induced Forces on the Landward Structure behind a Vertical Seawall with and without Recurve Using OpenFOAM

OpenMP-based parallel MLPG solver for analysis of heat conduction

Analysis of Navier–Stokes equations by a BC/GE embedded local meshless method

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