Numerical Simulation of Pulsatile Blood Flow Across a Tilting Disk Valve

Nejadmalayeri, Alireza; Hoffmann, Klaus A.; Dietiker, Jean-François

doi:10.2514/6.2007-4341

Cited by 1 publication

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ALE and SPH methods are commonly used to study blood flow in the cardiovascular system and its interaction with rigid bodies, such as mechanical valves [128][129][130][131][132][133]. However, the instability of the adaptive remeshing algorithm, high cost, and tedious determination process limit their use for bioprosthesis valve modeling [134], which involves complex contact and FSI problems during transient computation [135][136][137][138][139][140][141][142][143][144][145][146][147][148]. Although it is now possible to reduce the computational costs somewhat by using the direct interaction scheme (IB-LBM), adding the immersed boundary method (IBM) as a boundary force calculator (it is a combination of the positive aspects of both methods, such as the use of a Cartesian grid and the ability to perform algebraic operations in parallel) [149][150][151].…”

Section: Valve Modelingmentioning

confidence: 99%

Fluid–Structure Interaction Aortic Valve Surgery Simulation: A Review

Kuchumov,

Makashova,

Vladimirov

et al. 2023

Fluids

View full text Add to dashboard Cite

The complicated interaction between a fluid flow and a deformable structure is referred to as fluid–structure interaction (FSI). FSI plays a crucial role in the functioning of the aortic valve. Blood exerts stresses on the leaflets as it passes through the opening or shutting valve, causing them to distort and vibrate. The pressure, velocity, and turbulence of the fluid flow have an impact on these deformations and vibrations. Designing artificial valves, diagnosing and predicting valve failure, and improving surgical and interventional treatments all require the understanding and modeling of FSI in aortic valve dynamics. The most popular techniques for simulating and analyzing FSI in aortic valves are computational fluid dynamics (CFD) and finite element analysis (FEA). By studying the relationship between fluid flow and valve deformations, researchers and doctors can gain knowledge about the functioning of valves and possible pathological diseases. Overall, FSI is a complicated phenomenon that has a great impact on how well the aortic valve works. Aortic valve diseases and disorders can be better identified, treated, and managed by comprehending and mimicking this relationship. This article provides a literature review that compiles valve reconstruction methods from 1952 to the present, as well as FSI modeling techniques that can help advance valve reconstruction. The Scopus, PubMed, and ScienceDirect databases were used in the literature search and were structured into several categories. By utilizing FSI modeling, surgeons, researchers, and engineers can predict the behavior of the aortic valve before, during, and after surgery. This predictive capability can contribute to improved surgical planning, as it provides valuable insights into hemodynamic parameters such as blood flow patterns, pressure distributions, and stress analysis. Additionally, FSI modeling can aid in the evaluation of different treatment options and surgical techniques, allowing for the assessment of potential complications and the optimization of surgical outcomes. It can also provide valuable information on the long-term durability and functionality of prosthetic valves. In summary, fluid–structure interaction modeling is an effective tool for predicting the outcomes of aortic valve surgery. It can provide valuable insights into hemodynamic parameters and aid in surgical planning, treatment evaluation, and the optimization of surgical outcomes.

show abstract