Journal of Applied Mechanical Engineering

Languri EM

Publications

• Research Article
  Applied Fluid-Structure Interaction Technique to Initial Insight into the Effect of Exercise on the Aortic Valve Stroke Work
  Author(s): Bahraseman HG, Languri EM, Espino DM, Shojaei H, Hassani K and Derakhshandeh HBahraseman HG, Languri EM, Espino DM, Shojaei H, Hassani K and Derakhshandeh H
  
  The left ventricular stroke work is a measure of the work done by the left ventricle during the ejection of blood throughout per cardiac cycle. The aim of this investigation was to propose a model to numerically evaluate the stroke work for a healthy subject by using a fluid-structure interaction (FSI) simulation during exercise protocol. Aortic valve dimensions were calculated using an imaging technique of echocardiography. An FSI simulation was performed using an Arbitrary Lagrangian-Eulerian (ALE) mesh. Boundary conditions were defined by pressure loads on ventricular and aortic sides. Stroke work was predicted to increase to 121% from 60 bpm to 125 bpm, and it did not increase much above 125 bpm. Based on derived regression equations of our FSI results for stroke work and comparing of them with clinical ones, numerically-predicted stroke work values are in good agreements with pub.. View More»
  DOI: 10.4172/2168-9873.1000295

  Abstract PDF