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

Yulong Li, Yun Zhi Law, Vaibhav Joshi, Rajeev K. Jaiman
2018 Journal of Computational Physics  
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.  ...  We illustrate that the CRM with the partitioned NIFC treatment is stable for low solid-to-fluid density ratio and non-matching meshes.  ...  Acknowledgements The authors would like to thank the Singapore Maritime Institute and the National Research Foundation for the financial support. The first author appreciates the help from Prof.  ... 
doi:10.1016/ fatcat:pm2yi2k3x5cnpo4om43rnalgeq

Transient fluid–structure interaction with non-matching spatial and temporal discretizations

R. Jaiman, P. Geubelle, E. Loth, X. Jiao
2011 Computers & Fluids  
The common-refinement scheme resolves this problem by providing an accurate transfer of discrete interface conditions across non-matching meshes.  ...  This paper presents a review of spatial and temporal discretization schemes for unsteady flow interacting with structure.  ...  interface energy, which is introduced as part of the stability analysis for non-matching meshes in [8] .  ... 
doi:10.1016/j.compfluid.2011.07.001 fatcat:bjihcclxubcfvoku3jwxeu23te

Combined interface boundary condition method for unsteady fluid–structure interaction

R. Jaiman, P. Geubelle, E. Loth, X. Jiao
2011 Computer Methods in Applied Mechanics and Engineering  
This paper presents a new loosely-coupled partitioned procedure for modeling fluid-structure interaction called combined interface boundary condition (CIBC).  ...  for either the fluids or structures.  ...  Appendix A. Analytical solution of open elastic piston  ... 
doi:10.1016/j.cma.2010.06.039 fatcat:nejrbw4zmbfwpki7yeo3mkocja

A variational flexible multibody formulation for partitioned fluid-structure interaction: Application to bat-inspired drones and unmanned air-vehicles [article]

Vaibhav Joshi, Rajeev K. Jaiman, Carl Ollivier-Gooch
2020 arXiv   pre-print
We present a three-dimensional (3D) partitioned aeroelastic formulation for a flexible multibody system interacting with incompressible turbulent fluid flow.  ...  The convergence and generality of the radial basis function mapping are analyzed by carrying out systematic error analysis of the transfer of fluid traction across the non-matching fluid-structure interface  ...  Acknowledgements This research was supported in part through computational resources and services provided by Advanced Research Computing at the University of British Columbia. References  ... 
arXiv:2005.01971v1 fatcat:dx2l6a5npreafjz24pwdh6ucd4

Conservative load transfer along curved fluid–solid interface with non-matching meshes

R.K. Jaiman, X. Jiao, P.H. Geubelle, E. Loth
2006 Journal of Computational Physics  
The common-refinement scheme resolves this problem by providing an accurate transfer of discrete interface conditions across non-matching meshes.  ...  We investigate the effect of curvature on the accuracy of schemes used to transfer loads along the interface in coupled fluid-solid simulations involving non-matching meshes.  ...  The authors thank anonymous referees for their helpful comments in improving the presentation of this paper.  ... 
doi:10.1016/ fatcat:gaj6lqjdijdbzk4fo2am3l2wx4

Domain Decomposition Approach for Automatic Parallel Generation of Tetrahedral Grids

E.G. Ivanov, H. Andrä, A.N. Kudryavtsev
2006 Computational Methods in Applied Mathematics  
An a priori partitioning algorithm for the parallel generation of 3D nonoverlapping compatible unstructured meshes based on a CAD surface description is presented in this paper.  ...  Different aspects of load balancing methods are also explored in the paper. The MPI library and SPMD model are used for parallel grid generator implementation. Several 3D examples are shown.  ...  Latz On 3D Numerical Simulations of Viscoelastic Fluids In this work we present and solve a class of non-Newtonian viscoelastic fluid flow problems.  ... 
doi:10.2478/cmam-2006-0009 fatcat:kfrmskwu4bgdpi3p4eyqyjvjb4

Numerical Benchmarking of Fluid-Structure Interaction: A Comparison of Different Discretization and Solution Approaches [chapter]

S. Turek, J. Hron, M. Razzaq, H. Wobker, M. Schäfer
2010 Lecture Notes in Computational Science and Engineering  
Comparative benchmark results for different solution methods for fluidstructure interaction problems are given which have been developed as collaborative project in the DFG Research Unit 493.  ...  and structure simultaneously.  ...  The spatial discretization is by a conforming finite element Galerkin method on quadrilateral meshes with mixed global and zonal refinement using in case (a) the "equal-order" Q c 1 /Q c 1 Stokes-element  ... 
doi:10.1007/978-3-642-14206-2_15 fatcat:imhqkhw4ivgstgigaal5fw2d4a

Numerical Methods for Fluid-Structure Interaction — A Review

Gene Hou, Jin Wang, Anita Layton
2012 Communications in Computational Physics  
In this article, we review representative numerical methods based on conforming and non-conforming meshes that are currently available for computing fluid-structure interaction problems, with an emphasis  ...  We discuss challenges faced by researchers in this field, and we emphasize the importance of interdisciplinary effort for advancing the study in fluid-structure interactions.  ...  The authors thank the two anonymous referees for their valuable comments to improve this paper.  ... 
doi:10.4208/cicp.291210.290411s fatcat:byctez4nm5favgnzi6q5fgx7tq

Parallel Block-Preconditioned Monolithic Solvers for Fluid-Structure-Interaction Problems [article]

D. Jodlbauer and U. Langer and T. Wick
2018 arXiv   pre-print
In this work, we consider the solution of fluid-structure interaction problems using a monolithic approach for the coupling between fluid and solid subproblems.  ...  Direct solvers tend to use too much memory even for a relatively small number of degrees of freedom, and, in addition, exhibit superlinear grow in arithmetic complexity.  ...  A comparison of various extension methods for fluid-structure interaction problems can be found in [76] .  ... 
arXiv:1801.05648v2 fatcat:2udb6rjktfd65jyb67whfzndge

A State of the Art Review of the Particle Finite Element Method (PFEM)

Massimiliano Cremonesi, Alessandro Franci, Sergio Idelsohn, Eugenio Oñate
2020 Archives of Computational Methods in Engineering  
The particle finite element method (PFEM) is a powerful and robust numerical tool for the simulation of multi-physics problems in evolving domains.  ...  The flexibility and robustness of the method together with its capability for dealing with large topological variations of the computational domains, explain its success for solving a wide range of industrial  ...  [73] proposed a partitioned approach allowing for a non-conforming mesh at the interfaces and different time steps for the fluid and solid solutions.  ... 
doi:10.1007/s11831-020-09468-4 fatcat:36v6zrylmffjrh5bw743kp3x3e

3D simulation of wind turbine rotors at full scale. Part I: Geometry modeling and aerodynamics

Y. Bazilevs, M.-C. Hsu, I. Akkerman, S. Wright, K. Takizawa, B. Henicke, T. Spielman, T. E. Tezduyar
2010 International Journal for Numerical Methods in Fluids  
In Part 2 we focus on the structural discretization for wind turbine blades and the details of the fluid-structure interaction computational procedures.  ...  In this two-part article we present a collection of numerical methods combined into a single framework, which has the potential for a successful application to wind turbine rotor modeling and simulation  ...  We thank Creighton Moorman for his help in the very early stages of the FEM simulations.  ... 
doi:10.1002/fld.2400 fatcat:s76sidu7eve2to6ukvt555mdqi

Capturing simulation intent in an ontology: CAD and CAE integration application

Flavien Boussuge, Christopher M. Tierney, Harold Vilmart, Trevor T. Robinson, Cecil G. Armstrong, Declan C. Nolan, Jean-Claude Léon, Federico Ulliana
2019 Journal of engineering design  
In this framework, a simulation intent ontology formalises and structures the analysis parameters, the modelling and idealisation decisions.  ...  Equivalencing maintains the link between different representations of the cells required for different analyses throughout the analysis lifecycle.  ...  Acknowledgments This work was supported by the European Commission under the Grant 704557, MUMPS, Next Generation Digital Mock-Ups for Multi-Physics Simulation, a H2020-MSCA-IF-2015 founding scheme.  ... 
doi:10.1080/09544828.2019.1630806 fatcat:6rltdivwwvdwdgwvpdu4png7c4

High-order curvilinear hybrid mesh generation for CFD simulations [article]

Julian Marcon, Michael Turner, Joaquim Peiró, David Moxey, Claire R. Pollard, Henry Bucklow, Mark Gammon
2019 arXiv   pre-print
We describe a semi-structured method for the generation of high-order hybrid meshes suited for the simulation of high Reynolds number flows.  ...  CADfix is used to first repair any possible defects in the CAD geometry and then generate a medial object based decomposition of the domain that wraps the wall boundaries with partitions suitable for the  ...  Using the 3D medial object for partitioning The 3D medial object is used to guide our partition generation in complex junctions.  ... 
arXiv:1901.00992v1 fatcat:w2yvwykzlfhlxahjbcgojnehpi


2005 International Journal of Modern Physics B  
Combined with new methods of asymptotic analysis, the adaptive mesh approach provides a truly multi-scale capability for simulating solidification microstructures from nanometers up to centimeters.  ...  We then review recent dynamic adaptive mesh refinement algorithms that have enabled a dramatic increase in the scale of microstructures that can be simulated using phase-field models, at significantly  ...  Combining such asymptotic matching results with adaptive mesh refinement algorithms (discussed in Sec. 4) 30,31 enabled, for the first time, simulations of dendritic structures at experimentally relevant  ... 
doi:10.1142/s0217979205032917 fatcat:sy46ahpmqnaktmr3honappjmny

An Overset Grid Method for Fluid-Structure Interaction

Scott T. Miller, R. L. Campbell, C. W. Elsworth, J. S. Pitt, D. A. Boger
2014 World Journal of Mechanics  
Our partitioned solution algorithm uses separate solvers for the fluid (finite volume method) and the structure (finite element method), with mesh motion computed only on a subset of component grids of  ...  An overset grid methodology is developed for the fully coupled analysis of fluid-structure interaction (FSI) problems.  ...  Acknowledgements The authors would like to acknowledge support for this research from the Applied Research Laboratory at The Pennsylvania State University, especially the student support from the ARL Undergraduate  ... 
doi:10.4236/wjm.2014.47023 fatcat:5xe534ymfnbmlj6bjiwmdaxpwu
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