| Texto completo | |
| Autor(es): |
Bertoco, Juliana
[1]
;
de Araujo, Manoel S. B.
[2]
;
Leiva, Rosalia T.
[1]
;
Sanchez, Hugo A. C.
[1]
;
Castelo, Antonio
[1]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo, Inst Ciencias Matemat & Comp, BR-13566590 Sao Carlos, SP - Brazil
[2] Univ Fed Para UFPA, Inst Ciencias Exatas & Nat, BR-66075110 Belem, Para - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | APPLIED SCIENCES-BASEL; v. 11, n. 11 JUN 2021. |
| Citações Web of Science: | 0 |
| Resumo | |
In this work, we present the implementation and verification of HiGTree-HiGFlow solver (see for numerical simulation of the KBKZ integral constitutive equation. The numerical method proposed herein is a finite difference technique using tree-based grids. The advantage of using hierarchical grids is that they allow us to achieve great accuracy in local mesh refinements. A moving least squares (MLS) interpolation technique is used to adapt the discretization stencil near the interfaces between grid elements of different sizes. The momentum and mass conservation equations are solved by an implicit method and the Chorin projection method is used for decoupling the velocity and pressure. The Finger tensor is calculated using the deformation fields method and a three-node quadrature formula is used to derive an expression for the integral tensor. The results of velocity and stress fields in channel and contraction-flow problems obtained in our simulations show good agreement with numerical and experimental results found in the literature. (AU) | |
| Processo FAPESP: | 13/07375-0 - CeMEAI - Centro de Ciências Matemáticas Aplicadas à Indústria |
| Beneficiário: | Francisco Louzada Neto |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |
| Processo FAPESP: | 17/21105-6 - Estudos numéricos sobre modelos viscoelásticos integro-diferenciais fracionários |
| Beneficiário: | Rosalia Taboada Leiva |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 20/02990-1 - Dinâmica de escoamentos de fluidos viscoeláticos |
| Beneficiário: | Hugo Alberto Castillo Sanchez |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |