Finite volume solution to high rate wave propagation through a lung alveoli stack

Alakija, O.; Ivankovic, A.; Karac, A.

Affiliations

¹Mechanical Engineering, Imperial College London, London, UK

²Department of Mechanical Engineering University College Dublin, Dublin, Ireland

Abstract and keywords

This paper presents the work on a Finite Volume model representing wave propagation through the lung. One and two dimensional cases are used for the analysis and the results are validated against measured known values of stress wave propagation velocities. The results of the one dimensional model show that the known low wave propagation velocity has a strong dependence on the build up of energy within the alveoli cells especially at the initial stages of propagation. The results of the two dimensional model show the influence of the connecting tissue structure in the generation of over and underpressures at the tissue connecting junctions and also on the overall wave propagation velocity.

Keywords: impact; blast; lung; wave; injury mechanism; Finite Volume Method (FVM); fluid structure interaction

Links

DOI: 10.1007/1-4020-3796-1_29

Cited Works (2)

Year	Entry
1988	Bush IS, Challener SA. Finite element modelling of non-penetrating thoracic impact. In: Proceedings of the 1988 International IRCOBI Conference on the Biomechanics of Impact. September 14-16, 1988; Bergisch-Gladbach, West Germany.227-238.
1988	Yen RT, Fung YC, Liu SQ. Trauma of lung due to impact load. J Biomech. 1988;21(9):745-753.