Maklad, Osama ORCID: 0000-0001-6893-2654, Theofilis, V. and Elsheikh, A. (2018) Fluid Structure Interaction (FSI) simulation of the human eye under the air puff tonometry using Computational Fluid Dynamics (CFD). In: Tenth International Conference on Computational Fluid Dynamics (ICCFD10), 9th - 13th July 2018, Barcelona, Spain.

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Abstract

The air puff test is a non-contact method used in different areas to investigate the material behaviour or the biomechanical properties of biological tissues such as skin, cornea, and soft tissue tumours and also to study fruit firmness or meat tenderness. For the human eye, having a valid and fully coupled numerical simulation of the air puff test is very helpful and can greatly benefit to reduce a lot of time and cost of experimental testing. The gab in research in this area is considering the fluid structure interaction effect between the cornea, the air puff and the eye internal fluid. The simulation of the air puff test on the human eye is a Multi-physics problem which means; coupling between different numerical models and solvers with different governing equations and exchanging the data between them during the solution. A Computational Fluid Dynamics (CFD) model has been generated for an impinging air jet of maximum velocity of 168 m/s over a time span of 30ms and a coupling between the CFD model and the Finite Element (FE) model of the human eye has been successfully achieved for accurate simulation of the Fluid Structure Interaction (FSI) effect on the human eye cornea deformation. The air puff test is a non-contact method used in different areas to investigate the material behaviour or the biomechanical properties of biological tissues such as skin, cornea, and soft tissue tumours and also to study fruit firmness or meat tenderness. For the human eye, having a valid and fully coupled numerical simulation of the air puff test is very helpful and can greatly benefit to reduce a lot of time and cost of experimental testing. The gab in research in this area is considering the fluid structure interaction effect between the cornea, the air puff and the eye internal fluid. The simulation of the air puff test on the human eye is a Multi-physics problem which means; coupling between different numerical models and solvers with different governing equations and exchanging the data between them during the solution. A Computational Fluid Dynamics (CFD) model has been generated for an impinging air jet of maximum velocity of 168 m/s over a time span of 30ms and a coupling between the CFD model and the Finite Element (FE) model of the human eye has been successfully achieved for accurate simulation of the Fluid Structure Interaction (FSI) effect on the human eye cornea deformation.

Item Type:	Conference or Conference Paper (Paper)
Uncontrolled Keywords:	human eye; non-contact tonometry; ocular biomechanics; glaucoma; intra-ocular pressure (IOP); computational fluid dynamics (CFD); finite element analysis (FEA); fluid structure interaction (FSI); impinging jets; aeroelasticity
Subjects:	R Medicine > RE Ophthalmology T Technology > TJ Mechanical engineering and machinery
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > School of Engineering (ENG)
Related URLs:	Publisher
Last Modified:	16 May 2022 10:48
URI:	http://gala.gre.ac.uk/id/eprint/35528

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