Lagrangian–Eulerian multidensity topology optimization with the material point method
Sign Up to like & getrecommendations! Published in 2020 at "International Journal for Numerical Methods in Engineering"
DOI: 10.1002/nme.6668
Abstract: In this paper, a hybrid Lagrangian–Eulerian topology optimization (LETO) method is proposed to solve the elastic force equilibrium with the Material Point Method (MPM). LETO transfers density information from freely movable Lagrangian carrier particles to… read more here.
Keywords: method; lagrangian eulerian; material point; topology ... See more keywords
The numerical investigation of Lagrangian and Eulerian coherent structures for the near wake structure of a hovering Drosophila
Sign Up to like & getrecommendations! Published in 2019 at "Theoretical and Computational Fluid Dynamics"
DOI: 10.1007/s00162-019-00492-0
Abstract: An integrated simulation of a Drosophila wing–body combination in hovering flight has been carried out in order to analyze the Lagrangian and Eulerian coherent structures. A parallel unstructured finite volume method based on an arbitrary… read more here.
Keywords: near wake; topology; eulerian coherent; lagrangian eulerian ... See more keywords
Basis-free expressions for families of objective strain tensors, their rates, and conjugate stress tensors
Sign Up to like & getrecommendations! Published in 2018 at "Acta Mechanica"
DOI: 10.1007/s00707-017-1972-7
Abstract: The objective (Lagrangian and Eulerian) strain tensors, their rates, and conjugate stress tensors used in continuum mechanics equations are considered. These tensors are represented in the eigenprojections of the right and left stretch tensors $$\mathbf… read more here.
Keywords: stress tensors; basis free; strain tensors; lagrangian eulerian ... See more keywords
A hybrid subcell-remapping algorithm for staggered multi-material arbitrary Lagrangian-Eulerian methods
Sign Up to like & getrecommendations! Published in 2019 at "Applied Mathematics and Mechanics"
DOI: 10.1007/s10483-019-2523-5
Abstract: A new flux-based hybrid subcell-remapping algorithm for staggered multimaterial arbitrary Lagrangian-Eulerian (MMALE) methods is presented. This new method is an effective generalization of the original subcell-remapping method to the multi-material regime (LOUBERE, R. and SHASHKOV,… read more here.
Keywords: subcell; subcell remapping; arbitrary lagrangian; material ... See more keywords
Numerical study of convective heat transfer with nanofluids in turbulent flow using a Lagrangian-Eulerian approach
Sign Up to like & getrecommendations! Published in 2017 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2016.08.038
Abstract: Abstract In the present study, numerical simulations of forced convection heat transfer with Water-Al 2 O 3 , Water-TiO 2 and Water-Cu nanofluids in fully developed turbulent flow in a tube of circular cross-section under… read more here.
Keywords: using lagrangian; eulerian approach; heat transfer; approach ... See more keywords
A two steps Lagrangian–Eulerian numerical model for the simulation of explosive welding of three dissimilar materials joints
Sign Up to like & getrecommendations! Published in 2021 at "CIRP Journal of Manufacturing Science and Technology"
DOI: 10.1016/j.cirpj.2021.08.010
Abstract: Abstract Explosion welding (EXW) is a solid-state joining process used to produce lap joints out of metal plates of dissimilar materials. During the process, a controlled explosive detonation results in a pressure wave pushing one… read more here.
Keywords: dissimilar materials; three dissimilar; process; numerical model ... See more keywords
High-order particle method for solving incompressible Navier–Stokes equations within a mixed Lagrangian–Eulerian framework
Sign Up to like & getrecommendations! Published in 2017 at "Computer Methods in Applied Mechanics and Engineering"
DOI: 10.1016/j.cma.2017.07.001
Abstract: Abstract Owing to the fact that the Poisson equation of pressure for incompressible fluid flow is purely elliptic, it is therefore computationally improper to compute pressure on irregularly distributed moving particles as addressed in the… read more here.
Keywords: order; mixed lagrangian; method; particle ... See more keywords
An exploratory work on the use of a Lagrangian-Eulerian model for simulating heat transfer of subchannels under reflooding conditions
Sign Up to like & getrecommendations! Published in 2017 at "Nuclear Engineering and Design"
DOI: 10.1016/j.nucengdes.2016.11.031
Abstract: In case of a Loss-of-Coolant Accident (LOCA) in a Light Water Reactor (LWR), the reactor core becomes partially uncovered and the quick degradation of heat removal—from the nuclear fuel elements—constitutes a critical factor in the… read more here.
Keywords: temperature; work use; exploratory work; heat ... See more keywords
On the Lagrangian and Eulerian analyticity for the Euler equations
Sign Up to like & getrecommendations! Published in 2017 at "Physica D: Nonlinear Phenomena"
DOI: 10.1016/j.physd.2017.09.006
Abstract: Abstract We address preservation of the Lagrangian analyticity radius of solutions to the Euler equations belonging to natural analytic space based on the size of Taylor (or Gevrey) coefficients. We prove that if the solution… read more here.
Keywords: eulerian analyticity; euler equations; analyticity euler; solution ... See more keywords
Lagrangian and Eulerian accelerations in turbulent stratified shear flows
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review Fluids"
DOI: 10.1103/physrevfluids.6.074609
Abstract: The Lagrangian and Eulerian acceleration properties of fluid particles in homogeneous turbulence with uniform shear and uniform stable stratification are studied using direct numerical simulations. The Richardson number is varied from Ri = 0, corresponding… read more here.
Keywords: time; eulerian accelerations; density; lagrangian eulerian ... See more keywords
Second-gradient continua: From Lagrangian to Eulerian and back
Sign Up to like & getrecommendations! Published in 2022 at "Mathematics and Mechanics of Solids"
DOI: 10.1177/10812865221078822
Abstract: In this paper, we represent second-gradient internal work functionals in Lagrangian (referential) and Eulerian (spatial) descriptions, and we deduce the corresponding expressions for the Piola transformations of stress and double-stress tensors and of external forces… read more here.
Keywords: lagrangian eulerian; continua lagrangian; eulerian back; gradient continua ... See more keywords