نتایج جستجو برای: fsi modeling

تعداد نتایج: 390622  

Journal: :basic and clinical neuroscience 0
nafiseh masoumi chemical & petroleum engineering department, sharif university of technology, tehran, iran. f. framanzad biomechanics group faculty, mechanical engineering department, iranian university of science and technology, tehran, iran. behnam zamanian department of chemical engineering, north eastern university, boston, ma,usa. a.s. seddighi neurosurgery department, shohada-e-tajrish hospital, shahidbeheshti university of medical sciences, tehran, iran. m.h. moosavi biomedical engineering, amirkabir university of technology, tehran, iran. s. najarian faculty of biomedical engineering, amirkabir university of technology, tehran, iran.

many diseases are related to cerebrospinal .uid (csf) hydrodynamics. therefore, understanding the hydrodynamics of csf .ow and intracranial pressure is helpful for obtaining deeper knowledge of pathological processes and providing better treatments. furthermore, engineering a reliable computational method is promising approach for fabricating in vitro models which is essential for inventing gen...

2017
Shengmao Lin Xinwei Han Yonghua Bi Siyeong Ju Linxia Gu

In this work, the impact of modeling techniques on predicting the mechanical behaviors of abdominal aortic aneurysm (AAA) is systematically investigated. The fluid-structure interaction (FSI) model for simultaneously capturing the transient interaction between blood flow dynamics and wall mechanics was compared with its simplified techniques, that is, computational fluid dynamics (CFD) or compu...

Journal: :Acta of bioengineering and biomechanics 2016
Hamidreza Ghasemi Bahraseman Ehsan Mohseni Languri Niloofar Yahyapourjalaly Daniel M Espino

PURPOSE This paper proposes a model to measure the cardiac output and stroke volume at different aortic stenosis severities using a fluid-structure interaction (FSI) simulation at rest and during exercise. METHODS The geometry of the aortic valve is generated using echocardiographic imaging. An Arbitrary Lagrangian-Eulerian mesh was generated in order to perform the FSI simulations. Pressure ...

2008
Pari Delir Haghighi Shonali Krishnaswamy Arkady B. Zaslavsky Mohamed Medhat Gaber

Context-awareness is a key to enabling intelligent adaptation in pervasive computing applications that need to cope with dynamic and uncertain environments. Addressing uncertainty is one of the major issues in contextbased situation modeling and reasoning approaches. Uncertainty can be caused by inaccuracy, ambiguity or incompleteness of sensed context. However, there is another aspect of uncer...

Journal: :Computer Methods in Biomechanics and Biomedical Engineering 2020

2017
Wenbin Mao Andrés Caballero Raymond McKay Charles Primiano Wei Sun

In this study, we present a fully-coupled fluid-structure interaction (FSI) framework that combines smoothed particle hydrodynamics (SPH) and nonlinear finite element (FE) method to investigate the coupled aortic and mitral valves structural response and the bulk intraventricular hemodynamics in a realistic left ventricle (LV) model during the entire cardiac cycle. The FSI model incorporates va...

Journal: :Microelectronics Reliability 2014
C. Y. Khor Mohd Zulkifly Abdullah Chun-Sean Lau I. A. Azid

The rapid development of computing software has facilitated multifarious research in integrated circuit (IC) packaging. Complicated and complex processes can be visualized via simulation modeling with this software. The applications of aided software enhance the fundamental physicochemical understanding and visualization of the IC encapsulation process. In this article, fluid–structure interact...

2017
A Hessenthaler N R Gaddum O Holub R Sinkus O Röhrle D Nordsletten

In this paper a fluid-structure interaction (FSI) experiment is presented. The aim of this experiment is to provide a challenging yet easy-to-setup FSI test case that addresses the need for rigorous testing of FSI algorithms and modeling frameworks. Steady-state and periodic steady-state test cases with constant and periodic inflow were established. Focus of the experiment is on biomedical engi...

2013
Alvaro Valencia Patricio Alfonso Burdiles Miguel Ignat Jorge Mura Eduardo Bravo Rodrigo Rivera Juan Sordo

Computational Structural Dynamics (CSD) simulations, Computational Fluid Dynamics (CFD) simulation, and Fluid Structure Interaction (FSI) simulations were carried out in an anatomically realistic model of a saccular cerebral aneurysm with the objective of quantifying the effects of type of simulation on principal fluid and solid mechanics results. Eight CSD simulations, one CFD simulation, and ...

2013
Boris Muha

We study a nonlinear, unsteady, moving boundary, fluid–structure interaction (FSI) problem in which the structure is composed of two layers: a thick layer, and a thin layer which serves as a fluid–structure interface with mass. The fluid flow, which is driven by the time-dependent dynamic pressure data, is modeled by the Navier–Stokes equations for an incompressible, viscous fluid, defined on a...

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