Numerical modeling of dam-break flow impacting on flexible structures using an improved SPH-EBG method

Xiufeng Yang; Moubin Liu; Shiliu Peng; Chenguang Huang

doi:10.1016/j.coastaleng.2015.11.007

Numerical modeling of dam-break flow impacting on flexible structures using an improved SPH-EBG method

Xiufeng Yang^*, Moubin Liu, Shiliu Peng, Chenguang Huang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

64 Citations (Scopus)

Abstract

An improved coupling method of smoothed particle hydrodynamics (SPH) and element bending group (EBG) is developed for modeling the interaction of viscous flows with free surface and flexible structures with free and fixed ends. SPH and EBG are both particle methods which are appealing in modeling problems with free surfaces, moving interfaces and large deformations. SPH is used to model viscous fluid, while EBG is used to model flexible structure. Structure particles are also used as moving boundary for SPH, and the interaction of flexible structure with fluid is therefore modeled through the interaction of structure particles and fluid particles. A fixed-end treatment is introduced for flexible structures. A free surface treatment and a surface tension model are used for free surface flow. The improved SPH-EBG method is applied to simulate problems of dam break flow on flexible structures. The good agreement of presented numerical results with existing experimental and numerical results clearly demonstrates the effectiveness of the SPH and EBG coupling approach in modeling fluid-flexible structure interactions.

Original language	English
Pages (from-to)	56-64
Number of pages	9
Journal	Coastal Engineering
Volume	108
DOIs	https://doi.org/10.1016/j.coastaleng.2015.11.007
Publication status	Published - 1 Feb 2016
Externally published	Yes

Keywords

Element boundary group
Flexible structure
Fluid-structure interaction
Numerical modeling
Smoothed particle hydrodynamics

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10.1016/j.coastaleng.2015.11.007

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title = "Numerical modeling of dam-break flow impacting on flexible structures using an improved SPH-EBG method",

abstract = "An improved coupling method of smoothed particle hydrodynamics (SPH) and element bending group (EBG) is developed for modeling the interaction of viscous flows with free surface and flexible structures with free and fixed ends. SPH and EBG are both particle methods which are appealing in modeling problems with free surfaces, moving interfaces and large deformations. SPH is used to model viscous fluid, while EBG is used to model flexible structure. Structure particles are also used as moving boundary for SPH, and the interaction of flexible structure with fluid is therefore modeled through the interaction of structure particles and fluid particles. A fixed-end treatment is introduced for flexible structures. A free surface treatment and a surface tension model are used for free surface flow. The improved SPH-EBG method is applied to simulate problems of dam break flow on flexible structures. The good agreement of presented numerical results with existing experimental and numerical results clearly demonstrates the effectiveness of the SPH and EBG coupling approach in modeling fluid-flexible structure interactions.",

keywords = "Element boundary group, Flexible structure, Fluid-structure interaction, Numerical modeling, Smoothed particle hydrodynamics",

author = "Xiufeng Yang and Moubin Liu and Shiliu Peng and Chenguang Huang",

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year = "2016",

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doi = "10.1016/j.coastaleng.2015.11.007",

language = "English",

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T1 - Numerical modeling of dam-break flow impacting on flexible structures using an improved SPH-EBG method

AU - Yang, Xiufeng

AU - Liu, Moubin

AU - Peng, Shiliu

AU - Huang, Chenguang

PY - 2016/2/1

Y1 - 2016/2/1

N2 - An improved coupling method of smoothed particle hydrodynamics (SPH) and element bending group (EBG) is developed for modeling the interaction of viscous flows with free surface and flexible structures with free and fixed ends. SPH and EBG are both particle methods which are appealing in modeling problems with free surfaces, moving interfaces and large deformations. SPH is used to model viscous fluid, while EBG is used to model flexible structure. Structure particles are also used as moving boundary for SPH, and the interaction of flexible structure with fluid is therefore modeled through the interaction of structure particles and fluid particles. A fixed-end treatment is introduced for flexible structures. A free surface treatment and a surface tension model are used for free surface flow. The improved SPH-EBG method is applied to simulate problems of dam break flow on flexible structures. The good agreement of presented numerical results with existing experimental and numerical results clearly demonstrates the effectiveness of the SPH and EBG coupling approach in modeling fluid-flexible structure interactions.

AB - An improved coupling method of smoothed particle hydrodynamics (SPH) and element bending group (EBG) is developed for modeling the interaction of viscous flows with free surface and flexible structures with free and fixed ends. SPH and EBG are both particle methods which are appealing in modeling problems with free surfaces, moving interfaces and large deformations. SPH is used to model viscous fluid, while EBG is used to model flexible structure. Structure particles are also used as moving boundary for SPH, and the interaction of flexible structure with fluid is therefore modeled through the interaction of structure particles and fluid particles. A fixed-end treatment is introduced for flexible structures. A free surface treatment and a surface tension model are used for free surface flow. The improved SPH-EBG method is applied to simulate problems of dam break flow on flexible structures. The good agreement of presented numerical results with existing experimental and numerical results clearly demonstrates the effectiveness of the SPH and EBG coupling approach in modeling fluid-flexible structure interactions.

KW - Element boundary group

KW - Flexible structure

KW - Fluid-structure interaction

KW - Numerical modeling

KW - Smoothed particle hydrodynamics

UR - http://www.scopus.com/inward/record.url?scp=84949266656&partnerID=8YFLogxK

U2 - 10.1016/j.coastaleng.2015.11.007

DO - 10.1016/j.coastaleng.2015.11.007

M3 - Article

AN - SCOPUS:84949266656

SN - 0378-3839

VL - 108

SP - 56

EP - 64

JO - Coastal Engineering

JF - Coastal Engineering

ER -

Numerical modeling of dam-break flow impacting on flexible structures using an improved SPH-EBG method

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Keywords

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