University of Limerick
Centre for Applied Biomedical Engineering
Department of Mechanical & Aeronautical Engineering
Bio Fluid Flow
Fluid-Structure Interaction in Abdominal Aortic Aneurysms
We at the University of Limerick will be working on the modelling of abdominal aortic aneurysms (AAAs). The artery is an elastic material subject to dynamic pressure, hence fluid-structure interaction is needed to simulate this.
Used Approach (Software, Numerics, Modelling)
We will use MpCCI to couple the structure software Abaqus along with the fluid software Fluent.
Our initial study involves validation of the approach by means of an experimental rig. Elastic properties of the experimental model (silicone tube) will be determined and used as an input for the structure component. The flow rate and pressure in the experimental model will then be used as inlet and outlet conditions for the CFD component. The coupled artery model will be validated against wall displacement and fluid profile in the experimental rig.
Once this validation has been achieved, more complex models of aneurysms will be investigated. Final simulations will investigate the incorporation of stent grafts in to the model.
Expected Results
This fluid-structure approach is expected to be validated by seeing similar displacement in the experimental model as the FSI, as well as a validated flow field. Finally it is expected that the incorporation of a stent-graft will reduce the aneurysm wall stress in more advanced models.
Project Partners
Project Weblink:
University of Limerick, Castletroy
Centre for Applied Biomedical Engineering
Department of Mechanical & Aeronautical Engineering
MSSI Building
David Molony, B. Eng
Postgraduate Researcher
Limerick, Ireland
Email: david.molony@ul.ie
MpCCI is developed and distributed by Fraunhofer-Institute SCAI.