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Modelling hydraulic fractures in porous media using flow cohesive interface elements
https://orcid.org/0000-0003-1212-8311
AbstractThis paper revisits the problem of computational modelling of a fluid-driven fracture propagating in a permeable porous medium using zero-thickness flow cohesive interface elements. Both cases of continuous and discontinuous pressure field across the fractures are implemented in a unified formulation. The paper provides computational aspects of hydraulic fracture modelling such as mesh generation, execution time, convergence and numerical integration issues. We show that Newton-Cotes quadrature must be used for quadratic flow cohesive interface elements at least for the presented problems. Our simulations exhibit the so-called intermittent crack tip advancement as recently confirmed in the literature. This paper is addressed to researchers who would like to have a quick working implementation of the zero-thickness flow cohesive interface elements for simulating hydraulic fracturing processes with finite elements.
HighlightsLinear and quadratic flow cohesive interface elements are presented for hydraulic fracturing simulations.Computational aspects such as convergence, quadrature and costs are discussed.Stepwise crack advancement is demonstrated to have a numerical reason.
Modelling hydraulic fractures in porous media using flow cohesive interface elements
https://orcid.org/0000-0003-1212-8311
AbstractThis paper revisits the problem of computational modelling of a fluid-driven fracture propagating in a permeable porous medium using zero-thickness flow cohesive interface elements. Both cases of continuous and discontinuous pressure field across the fractures are implemented in a unified formulation. The paper provides computational aspects of hydraulic fracture modelling such as mesh generation, execution time, convergence and numerical integration issues. We show that Newton-Cotes quadrature must be used for quadratic flow cohesive interface elements at least for the presented problems. Our simulations exhibit the so-called intermittent crack tip advancement as recently confirmed in the literature. This paper is addressed to researchers who would like to have a quick working implementation of the zero-thickness flow cohesive interface elements for simulating hydraulic fracturing processes with finite elements.
HighlightsLinear and quadratic flow cohesive interface elements are presented for hydraulic fracturing simulations.Computational aspects such as convergence, quadrature and costs are discussed.Stepwise crack advancement is demonstrated to have a numerical reason.
Modelling hydraulic fractures in porous media using flow cohesive interface elements
https://orcid.org/0000-0003-1212-8311
AbstractThis paper revisits the problem of computational modelling of a fluid-driven fracture propagating in a permeable porous medium using zero-thickness flow cohesive interface elements. Both cases of continuous and discontinuous pressure field across the fractures are implemented in a unified formulation. The paper provides computational aspects of hydraulic fracture modelling such as mesh generation, execution time, convergence and numerical integration issues. We show that Newton-Cotes quadrature must be used for quadratic flow cohesive interface elements at least for the presented problems. Our simulations exhibit the so-called intermittent crack tip advancement as recently confirmed in the literature. This paper is addressed to researchers who would like to have a quick working implementation of the zero-thickness flow cohesive interface elements for simulating hydraulic fracturing processes with finite elements.
HighlightsLinear and quadratic flow cohesive interface elements are presented for hydraulic fracturing simulations.Computational aspects such as convergence, quadrature and costs are discussed.Stepwise crack advancement is demonstrated to have a numerical reason.
Modelling hydraulic fractures in porous media using flow cohesive interface elements
Nguyen, Vinh Phu (author) / Lian, Haojie (author) / Rabczuk, Timon (author) / Bordas, Stéphane (author)
Engineering Geology ; 225 ; 68-82
2017-04-14
15 pages
Article (Journal)
Electronic Resource
English
Modelling hydraulic fractures in porous media using flow cohesive interface elements
| British Library Online Contents | 2017
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