Marianne M. Francois
Los Alamos National Laboratory
AlgorithmPhysicsVolume of fluid methodEngineeringMathematical analysisCartesian coordinate systemPiecewise linear functionMaterials scienceCurvatureGeometryPolygon meshMathematicsComputer scienceComputational scienceNumerical analysisHeat transferMechanicsDynamics (mechanics)Classical mechanicsFlow (psychology)Mechanical engineeringSurface tension
88Publications
19H-index
1,773Citations
Publications 78
Newest
#1Supriyo Ghosh (LANL: Los Alamos National Laboratory)H-Index: 12
#2Christopher K. Newman (LANL: Los Alamos National Laboratory)H-Index: 8
Last. Marianne M. Francois (LANL: Los Alamos National Laboratory)H-Index: 19
view all 3 authors...
Abstract null null We develop a fully-coupled, fully-implicit approach for phase-field modeling of solidification in metals and alloys. Predictive simulation of solidification in pure metals and metal alloys remains a significant challenge in the field of materials science, as microstructure formation during the solidification process plays a critical role in the properties and performance of the solid material. Our simulation approach consists of a finite element spatial discretization of the f...
Source
#1Thomas M. Evans (ORNL: Oak Ridge National Laboratory)H-Index: 21
#2Andrew R. Siegel (Argonne National Laboratory)H-Index: 21
Last. Daniel F. Martin (LBNL: Lawrence Berkeley National Laboratory)H-Index: 19
view all 8 authors...
The US Department of Energy Office of Science and the National Nuclear Security Administration initiated the Exascale Computing Project (ECP) in 2016 to prepare mission-relevant applications and scientific software for the delivery of the exascale computers starting in 2023. The ECP currently supports 24 efforts directed at specific applications and six supporting co-design projects. These 24 application projects contain 62 application codes that are implemented in three high-level languages—C, ...
Source
#1Marianne M. Francois (LANL: Los Alamos National Laboratory)H-Index: 19
Source
We develop a fully-coupled, fully-implicit approach for phase-field modeling of solidification in metals and alloys. Predictive simulation of solidification in pure metals and metal alloys remains a significant challenge in the field of materials science, as microstructure formation during the solidification process plays a critical role in the properties and performance of the solid material. Our simulation approach consists of a finite element spatial discretization of the fully-coupled nonlin...
#1Francis J. Alexander (BNL: Brookhaven National Laboratory)H-Index: 4
#2Ann S. Almgren (LBNL: Lawrence Berkeley National Laboratory)H-Index: 44
Last. Katherine YelickH-Index: 63
view all 51 authors...
As noted in Wikipedia, skin in the game refers to having incurred risk by being involved in achieving a goal, where skin is a synecdoche for the person involved, and game is the metaphor for action...
Source
#1Abigail Hunter (LANL: Los Alamos National Laboratory)H-Index: 20
#2Tariq D. Aslam (LANL: Los Alamos National Laboratory)H-Index: 21
Last. W. S. Wilburn (LANL: Los Alamos National Laboratory)H-Index: 14
view all 8 authors...
Source
#1Fernando F. Grinstein (LANL: Los Alamos National Laboratory)H-Index: 34
#2Juan A. Saenz (LANL: Los Alamos National Laboratory)H-Index: 6
Last. Marianne M. Francois (LANL: Los Alamos National Laboratory)H-Index: 19
view all 6 authors...
Abstract Transition and turbulence decay with the Taylor–Green vortex have been effectively used to demonstrate emulation of high Reynolds-number ( R e ) physical dissipation through numerical convective effects of various non-oscillatory finite-volume algorithms for implicit large eddy simulation (ILES), e.g. using the Godunov-based Eulerian adaptive mesh refinement code xRAGE. The inverse-chevron shock tube experiment simulations have been also used to assess xRAGE based ILES for shock driven ...
Source
#1Zechariah J. Jibben (LANL: Los Alamos National Laboratory)H-Index: 4
#2Jan Velechovsky (LANL: Los Alamos National Laboratory)H-Index: 2
Last. Marianne M. Francois (LANL: Los Alamos National Laboratory)H-Index: 19
view all 4 authors...
Abstract We present a numerical approach to model surface tension between immiscible materials within an inviscid compressible flow solver. The material interface is represented using the volume of fluid technique with piecewise-linear interface reconstructions. We employ the continuum surface force to model surface tension, and have implemented it in the context of the MUSCL-Hancock finite volume method for the Euler equations on an adaptively refined Eulerian mesh. We show results from droplet...
Source
#1Jan Velechovsky (LANL: Los Alamos National Laboratory)H-Index: 2
#2Marianne M. Francois (LANL: Los Alamos National Laboratory)H-Index: 19
Last. Thomas Masser (LANL: Los Alamos National Laboratory)H-Index: 4
view all 3 authors...
Abstract In the context of finite volume methods for hyperbolic systems of conservation laws, slope limiters are an effective way to suppress creation of unphysical local extrema and/or oscillations near discontinuities. We investigate properties of these limiters as applied to piecewise linear reconstructions of conservative fluid quantities in three-dimensional simulations. In particular, we are interested in linear reconstructions on Cartesian adaptively refined meshes, where a reconstructed ...
Source
#1Zechariah J. Jibben (LANL: Los Alamos National Laboratory)H-Index: 4
#2Neil N. Carlson (LANL: Los Alamos National Laboratory)H-Index: 2
Last. Marianne M. Francois (LANL: Los Alamos National Laboratory)H-Index: 19
view all 3 authors...
Abstract We present a novel method for calculating interface curvature on 3D unstructured meshes from piecewise-linear interface reconstructions typically generated in the volume of fluid method. Interface curvature is a necessary quantity to calculate in order to model surface tension driven flow. Curvature needs only to be computed in cells containing an interface. The approach requires a stencil containing only neighbors sharing a node with a target cell, and calculates curvature from a least...
Source
This website uses cookies.
We use cookies to improve your online experience. By continuing to use our website we assume you agree to the placement of these cookies.
To learn more, you can find in our Privacy Policy.