A Multi-Scale Residual-Based Anti-Hourglass Control for Compatible Staggered Lagrangian Hydrodynamics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F18%3A00313495" target="_blank" >RIV/68407700:21340/18:00313495 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0021999117308173" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0021999117308173</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jcp.2017.10.050" target="_blank" >10.1016/j.jcp.2017.10.050</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A Multi-Scale Residual-Based Anti-Hourglass Control for Compatible Staggered Lagrangian Hydrodynamics

Popis výsledku v původním jazyce

Hourglassing is a well-known pathological numerical artifact affecting the robustness and accuracy of Lagrangian methods. There exist a large number of hourglass control/suppression strategies. In the community of the staggered compatible Lagrangian methods, the approach of sub-zonal pressure forces is among the most widely used. However, this approach is known to add numerical strength to the solution, which can cause potential problems in certain types of simulations, for instance in simulations of various instabilities. To avoid this complication, we have adapted the multi-scale residual-based stabilization typically used in the finite element approach for staggered compatible framework. In this paper, we describe two discretizations of the new approach and demonstrate their properties and compare with the method of sub-zonal pressure forces on selected numerical problems.

Název v anglickém jazyce

A Multi-Scale Residual-Based Anti-Hourglass Control for Compatible Staggered Lagrangian Hydrodynamics

Popis výsledku anglicky

Hourglassing is a well-known pathological numerical artifact affecting the robustness and accuracy of Lagrangian methods. There exist a large number of hourglass control/suppression strategies. In the community of the staggered compatible Lagrangian methods, the approach of sub-zonal pressure forces is among the most widely used. However, this approach is known to add numerical strength to the solution, which can cause potential problems in certain types of simulations, for instance in simulations of various instabilities. To avoid this complication, we have adapted the multi-scale residual-based stabilization typically used in the finite element approach for staggered compatible framework. In this paper, we describe two discretizations of the new approach and demonstrate their properties and compare with the method of sub-zonal pressure forces on selected numerical problems.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10101 - Pure mathematics

Projekt

<a href="/cs/project/GA14-21318S" target="_blank" >GA14-21318S: Lagrangeovské a ALE metody pro mechaniku stlačitelných tekutin a elasto-plastických pevných látek</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Computational Physics

ISSN

0021-9991

e-ISSN

1090-2716

Svazek periodika

354

Číslo periodika v rámci svazku

February

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

25

Strana od-do

1-25

Kód UT WoS článku

000418536900001

EID výsledku v databázi Scopus

2-s2.0-85033394301