Block-based adaptive mesh refinement for fluid–structure interactions in incompressible flows

Cheng Liu, Changhong Hu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this study, an immersed boundary (IB) approach on the basis of moving least squares (MLS) interpolation is proposed for analyzing the dynamic response of a rigid body immersed in incompressible flows. An improved mapping strategy is proposed for a quick update of the signed distance field. A CIP-CSL (constraint interpolation profile - semi-Lagrangian) scheme with a compact stencil is adopted for the convective term in momentum equation. Fluid–structure interaction problems can be solved by either the weak or the strong coupling schemes according to the density ratio of the solid and fluid. This research is based on our previous studies on block-structured adaptive mesh refinement (AMR) method for incompressible flows (Liu & Hu, 2018). Present AMR-FSI solver is proved to be accurate and robust in predicting dynamics of VIV (vortex induced vibration) problems. The efficiency of the adaptive method is demonstrated by the 2D simulation of a freely falling plate with the comparison to other numerical methods. Finally, the freely falling and rising 3D sphere are computed and compared with corresponding experimental measurement.

Original languageEnglish
Pages (from-to)104-123
Number of pages20
JournalComputer Physics Communications
Volume232
DOIs
Publication statusPublished - Nov 1 2018

Fingerprint

incompressible flow
Incompressible flow
falling
interpolation
Interpolation
rigid structures
dynamic response
Dynamic response
Numerical methods
Momentum
Vortex flow
interactions
vortices
momentum
vibration
Fluids
fluids
profiles
simulation

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Physics and Astronomy(all)

Cite this

Block-based adaptive mesh refinement for fluid–structure interactions in incompressible flows. / Liu, Cheng; Hu, Changhong.

In: Computer Physics Communications, Vol. 232, 01.11.2018, p. 104-123.

Research output: Contribution to journalArticle

@article{1cf3a8dc726b4fb3965face2427bfd46,
title = "Block-based adaptive mesh refinement for fluid–structure interactions in incompressible flows",
abstract = "In this study, an immersed boundary (IB) approach on the basis of moving least squares (MLS) interpolation is proposed for analyzing the dynamic response of a rigid body immersed in incompressible flows. An improved mapping strategy is proposed for a quick update of the signed distance field. A CIP-CSL (constraint interpolation profile - semi-Lagrangian) scheme with a compact stencil is adopted for the convective term in momentum equation. Fluid–structure interaction problems can be solved by either the weak or the strong coupling schemes according to the density ratio of the solid and fluid. This research is based on our previous studies on block-structured adaptive mesh refinement (AMR) method for incompressible flows (Liu & Hu, 2018). Present AMR-FSI solver is proved to be accurate and robust in predicting dynamics of VIV (vortex induced vibration) problems. The efficiency of the adaptive method is demonstrated by the 2D simulation of a freely falling plate with the comparison to other numerical methods. Finally, the freely falling and rising 3D sphere are computed and compared with corresponding experimental measurement.",
author = "Cheng Liu and Changhong Hu",
year = "2018",
month = "11",
day = "1",
doi = "10.1016/j.cpc.2018.05.015",
language = "English",
volume = "232",
pages = "104--123",
journal = "Computer Physics Communications",
issn = "0010-4655",
publisher = "Elsevier",

}

TY - JOUR

T1 - Block-based adaptive mesh refinement for fluid–structure interactions in incompressible flows

AU - Liu, Cheng

AU - Hu, Changhong

PY - 2018/11/1

Y1 - 2018/11/1

N2 - In this study, an immersed boundary (IB) approach on the basis of moving least squares (MLS) interpolation is proposed for analyzing the dynamic response of a rigid body immersed in incompressible flows. An improved mapping strategy is proposed for a quick update of the signed distance field. A CIP-CSL (constraint interpolation profile - semi-Lagrangian) scheme with a compact stencil is adopted for the convective term in momentum equation. Fluid–structure interaction problems can be solved by either the weak or the strong coupling schemes according to the density ratio of the solid and fluid. This research is based on our previous studies on block-structured adaptive mesh refinement (AMR) method for incompressible flows (Liu & Hu, 2018). Present AMR-FSI solver is proved to be accurate and robust in predicting dynamics of VIV (vortex induced vibration) problems. The efficiency of the adaptive method is demonstrated by the 2D simulation of a freely falling plate with the comparison to other numerical methods. Finally, the freely falling and rising 3D sphere are computed and compared with corresponding experimental measurement.

AB - In this study, an immersed boundary (IB) approach on the basis of moving least squares (MLS) interpolation is proposed for analyzing the dynamic response of a rigid body immersed in incompressible flows. An improved mapping strategy is proposed for a quick update of the signed distance field. A CIP-CSL (constraint interpolation profile - semi-Lagrangian) scheme with a compact stencil is adopted for the convective term in momentum equation. Fluid–structure interaction problems can be solved by either the weak or the strong coupling schemes according to the density ratio of the solid and fluid. This research is based on our previous studies on block-structured adaptive mesh refinement (AMR) method for incompressible flows (Liu & Hu, 2018). Present AMR-FSI solver is proved to be accurate and robust in predicting dynamics of VIV (vortex induced vibration) problems. The efficiency of the adaptive method is demonstrated by the 2D simulation of a freely falling plate with the comparison to other numerical methods. Finally, the freely falling and rising 3D sphere are computed and compared with corresponding experimental measurement.

UR - http://www.scopus.com/inward/record.url?scp=85048715027&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85048715027&partnerID=8YFLogxK

U2 - 10.1016/j.cpc.2018.05.015

DO - 10.1016/j.cpc.2018.05.015

M3 - Article

AN - SCOPUS:85048715027

VL - 232

SP - 104

EP - 123

JO - Computer Physics Communications

JF - Computer Physics Communications

SN - 0010-4655

ER -