Modelling hollow organs for impact conditions: a simplified case study
SONI ; BEILLAS
Type de document
ARTICLE A COMITE DE LECTURE REPERTORIE DANS BDI (ACL)
Langue
anglais
Auteur
SONI ; BEILLAS
Résumé / Abstract
This study compares the performances of three numerical approaches (Lagrangian, ALE and control volume) for modelling the response of a short cylindrical pipe representing a portion of the intestines subjected to large and rapid compressions. While not being able to simulate sustained fluid flow, the Lagrangian approach provided similar results as the ALE for moderate levels of compression. However, it was the stiffest approach for larger levels, and had numerical issues for extreme compressions. While the ALE did not have these issues, its computing cost was very high, which would be problematic for large models. The control volume approach had the lowest computing cost and seemed promising for larger compressions. However, its response was the softest and further investigations are needed to define its dependency to modelling parameters.
Source
Computer Methods in Biomechanics and Biomedical Engineering, num. 7, pp. 730-739 p.
Editeur
Taylor & Francis Ltd
