Comparative analysis of numerical solutions of 2D unsteady dambreak waves using FVM and SPH method

This work presents a comparison of two-dimensional numerical solutions of unsteady free surface flow. This is a simulation of the dam-break wave with different configurations using based-mesh finite volume method and meshless smoothed particle hydrodynamics (SPH). Two well-known approaches, widely u...

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Main Authors: Rahou Ibrahim, Korichi Khaled
Format: Article
Language:English
Published: Sciendo 2023-09-01
Series:Journal of Hydrology and Hydromechanics
Subjects:
Online Access:https://doi.org/10.2478/johh-2023-0005
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author Rahou Ibrahim
Korichi Khaled
author_facet Rahou Ibrahim
Korichi Khaled
author_sort Rahou Ibrahim
collection DOAJ
description This work presents a comparison of two-dimensional numerical solutions of unsteady free surface flow. This is a simulation of the dam-break wave with different configurations using based-mesh finite volume method and meshless smoothed particle hydrodynamics (SPH). Two well-known approaches, widely used in the computational fluid dynamics (CFD). These techniques have proven their robustness in the numerical treatment of such conservation laws. The main goal is to check the ability of the SPH method and the first order finite volume HLLC solver to reproduce the numerical solutions of the 2D shallow water equations. Based on many benchmark tests, one investigates the effect of the topographic variation along the x and y directions on behavior of the numerical solutions namely at the wet-dry front. The comparison between the simulated results, the analytical solutions and the experimental measurements shows a good correlation, although the finite volume approach remains more advantageous in terms of accuracy and the CPU time.
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spelling doaj.art-777d1eab51b044ceb6b6144163b3c3ca2023-08-14T07:11:08ZengSciendoJournal of Hydrology and Hydromechanics1338-43332023-09-0171330531510.2478/johh-2023-0005Comparative analysis of numerical solutions of 2D unsteady dambreak waves using FVM and SPH methodRahou Ibrahim0Korichi Khaled11Civil Engineering and Environment Laboratory, Faculty of Technology, Djillali Liabes University of Sidi Bel Abbes, Bp 89 Sidi Bel Abbes 22000, Algeria.1Civil Engineering and Environment Laboratory, Faculty of Technology, Djillali Liabes University of Sidi Bel Abbes, Bp 89 Sidi Bel Abbes 22000, Algeria.This work presents a comparison of two-dimensional numerical solutions of unsteady free surface flow. This is a simulation of the dam-break wave with different configurations using based-mesh finite volume method and meshless smoothed particle hydrodynamics (SPH). Two well-known approaches, widely used in the computational fluid dynamics (CFD). These techniques have proven their robustness in the numerical treatment of such conservation laws. The main goal is to check the ability of the SPH method and the first order finite volume HLLC solver to reproduce the numerical solutions of the 2D shallow water equations. Based on many benchmark tests, one investigates the effect of the topographic variation along the x and y directions on behavior of the numerical solutions namely at the wet-dry front. The comparison between the simulated results, the analytical solutions and the experimental measurements shows a good correlation, although the finite volume approach remains more advantageous in terms of accuracy and the CPU time.https://doi.org/10.2478/johh-2023-00052d shallow waterunsteady flowdambreakfinite volumesphexperimental measurements
spellingShingle Rahou Ibrahim
Korichi Khaled
Comparative analysis of numerical solutions of 2D unsteady dambreak waves using FVM and SPH method
Journal of Hydrology and Hydromechanics
2d shallow water
unsteady flow
dambreak
finite volume
sph
experimental measurements
title Comparative analysis of numerical solutions of 2D unsteady dambreak waves using FVM and SPH method
title_full Comparative analysis of numerical solutions of 2D unsteady dambreak waves using FVM and SPH method
title_fullStr Comparative analysis of numerical solutions of 2D unsteady dambreak waves using FVM and SPH method
title_full_unstemmed Comparative analysis of numerical solutions of 2D unsteady dambreak waves using FVM and SPH method
title_short Comparative analysis of numerical solutions of 2D unsteady dambreak waves using FVM and SPH method
title_sort comparative analysis of numerical solutions of 2d unsteady dambreak waves using fvm and sph method
topic 2d shallow water
unsteady flow
dambreak
finite volume
sph
experimental measurements
url https://doi.org/10.2478/johh-2023-0005
work_keys_str_mv AT rahouibrahim comparativeanalysisofnumericalsolutionsof2dunsteadydambreakwavesusingfvmandsphmethod
AT korichikhaled comparativeanalysisofnumericalsolutionsof2dunsteadydambreakwavesusingfvmandsphmethod