A new partitioned staggered scheme for flexible multibody interactions with strong inertial effects

Yenduri, Anurag; Ghoshal, Ritwik; Jaiman, Rajeev K.

doi:10.1016/j.cma.2016.10.044

Cited by 13 publications

(11 citation statements)

References 49 publications

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“…In partitioned treatment, the field models are treated computationally as isolated systems that are separately stepped in time. In this study, the simultaneous coupling method has been used for time history analysis [37]. For full transient Analysis, an optimized strategy has been taken considering time intervals, element sizes, the total number of elements and elements with contact algorithm.…”

Section: Analysis Of Double Deck Storage Tankmentioning

confidence: 99%

Seismic Analysis of Double Deck Floating Roofs of Siraf Storage Tanks with Condensate, Light and Heavy Crude Oils

Ahmadi

Kadivar

2021

IJE

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Section: Analysis Of Double Deck Storage Tankmentioning

confidence: 99%

Seismic Analysis of Double Deck Floating Roofs of Siraf Storage Tanks with Condensate, Light and Heavy Crude Oils

Ahmadi

Kadivar

2021

IJE

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“…The majority of the partitioned schemes available in the literature are based on displacement predictors for the solid problem [38,51,69,74]. Staggered schemes based on force-predictors for the solid problem also exist [42,61,75,106]. Other variations in partitioned schemes include added-mass partitioned (AMP) scheme by Bank et al [63,64], combined interface boundary condition by Jaiman et al [53], and nonlinear interface force correction(NIFC) by Jaiman et al [68].…”

Section: Partitioned or Staggered Approachmentioning

confidence: 99%

A second-order accurate non-intrusive staggered scheme for the interaction of ultra-lightweight rigid bodies with fluid flow

Kadapa

2020

Ocean Engineering

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This paper presents a staggered scheme with second-order temporal accuracy for fluid-structure interaction problems involving ultra-lightweight rigid bodies. The staggered scheme is based on the Dirichlet-Neumann coupling and is non-intrusive. First, the spectral properties of the staggered scheme are studied and also compared against the monolithic scheme using a linear model problem. Later, the suitability and effectiveness of the staggered scheme for problems involving incompressible flows and lightweight rigid solids are illustrated by using the examples of galloping of a square cylinder and lock-in of a circular cylinder for mass-ratio values as low as 0.01. This is the first time in the literature flow-induced vibrations of rigid bodies with such low mass ratio values are successfully simulated using a staggered scheme. Two different fluid solvers are considered to illustrate the non-intrusive nature of the proposed scheme. Guidelines for choosing the relaxation parameter are also provided. With its iteration-free nature and with a single (relaxation) parameter, the proposed staggered scheme renders itself as an accurate and computationally efficient scheme for fluid-rigid body interaction problems, including those involving lightweight structures.

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“…After linearizing the virtual work equation Eq. (20) with respect to ∆d s , we have the following system of linear equations:…”

Section: Galerkin Finite Element For Hyperelastic Structurementioning

confidence: 99%

A 3D common-refinement method for non-matching meshes in partitioned variational fluid–structure analysis

Law

Joshi

et al. 2018

Journal of Computational Physics

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We present a three-dimensional (3D) common-refinement method for non-matching meshes between discrete non-overlapping subdomains of incompressible fluid and nonlinear hyperelastic structure. The fluid flow is discretized using a stabilized Petrov-Galerkin method, and the large deformation structural formulation relies on a continuous Galerkin finite element method. An arbitrary Lagrangian-Eulerian formulation with a nonlinear iterative force correction (NIFC) coupling is achieved in a staggered partitioned manner by means of fully decoupled implicit procedures for the fluid and solid discretizations. To begin, we first investigate the accuracy of common-refinement method (CRM) to satisfy traction equilibrium condition along the fluid-elastic interface with non-matching meshes. We systematically assess the accuracy of CRM against the matching grid solution by varying grid mismatch between the fluid and solid meshes over a cylindrical tubular elastic body. We demonstrate second-order accuracy of CRM through uniform refinements of fluid and solid meshes along the interface. We then extend the error analysis to transient data transfer across non-matching meshes between fluid and solid solvers. We show that the common-refinement discretization across non-matching fluid-structure grids yields accurate transfer of the physical quantities across the fluid-solid interface. We next solve a 3D benchmark problem of a cantilevered hyperelastic plate behind a circular bluff body and verify the accuracy of coupled solutions with respect to the available solution in the literature. By varying the solid interface resolution, we generate various non-matching grid ratios and quantify the accuracy of CRM for the nonlinear structure interacting with a laminar flow. We illustrate that the CRM with the partitioned NIFC treatment is stable for low solid-to-fluid density ratio and non-matching meshes. Finally, we demonstrate the 3D parallel implementation of common-refinement with NIFC scheme for a realistic engineering problem of drilling riser undergoing complex vortex-induced vibration with strong added mass effects.

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A new partitioned staggered scheme for flexible multibody interactions with strong inertial effects

Cited by 13 publications

References 49 publications

Seismic Analysis of Double Deck Floating Roofs of Siraf Storage Tanks with Condensate, Light and Heavy Crude Oils

Seismic Analysis of Double Deck Floating Roofs of Siraf Storage Tanks with Condensate, Light and Heavy Crude Oils

A second-order accurate non-intrusive staggered scheme for the interaction of ultra-lightweight rigid bodies with fluid flow

A 3D common-refinement method for non-matching meshes in partitioned variational fluid–structure analysis

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