ADAPTIVE MESH REFINEMENT WITH COMBINED CRITERIA FOR FAST TRANSIENT FLUID-STRUCTURE DYNAMICS


Abstract eng:
The present contribution deals with adaptive mesh refinement for fluid-structure systems undergoing fast transient phenomena. The mesh for fluid and structures is fully unstructured and the representation is Lagrangian for structures and Eulerien or ALE for fluids. It follows some previous work from Diez, Verdugo and Casadei [1][2] in the framework of EUROPLEXUS software (EPX, http://www-epx.cea.fr, coownership of CEA and EC/JRC, free for academics). The focus is set here on refinement criteria and especially on the simultaneous use of multiple criteria of different natures, such as gradient-based indicators for accurate wave propagations, proximity to a fluid-structure interface or to a purely fluid interface in the case of multi-component equations of state (water/air interfaces for instance). Figure 1 provides a simple example of mesh refinement in a fluid-structure situation. Dealing with mesh refinement close to contact surfaces in structure only configurations shall also be considered. A special care is given to the robustness of the proposed approach and on its algorithmic formulation for an efficient parallel solution [3], taking benefit from high performance calculators being a central issue for any method designed for industrial applications.

Contributors:
Publisher:
National Technical University of Athens, 2015
Conference Title:
Conference Title:
COMPDYN 2015 - 5th International Thematic Conference
Conference Venue:
Crete (GR)
Conference Dates:
2015-05-25 / 2015-05-27
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.



Record appears in:



 Record created 2017-06-22, last modified 2017-06-22


Original version of the author's contribution as presented on CD, section: .:
Download fulltext
PDF

Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)