Lagrangian Postprocessing of Computational Hemodynamics

Shawn C. Shadden, Amirhossein Arzani

Research output: Contribution to journalArticlepeer-review

69 Scopus citations

Abstract

Recent advances in imaging, modeling, and computing have rapidly expanded our capabilities to model hemodynamics in the large vessels (heart, arteries, and veins). This data encodes a wealth of information that is often under-utilized. Modeling (and measuring) blood flow in the large vessels typically amounts to solving for the time-varying velocity field in a region of interest. Flow in the heart and larger arteries is often complex, and velocity field data provides a starting point for investigating the hemodynamics. This data can be used to perform Lagrangian particle tracking, and other Lagrangian-based postprocessing. As described herein, Lagrangian methods are necessary to understand inherently transient hemodynamic conditions from the fluid mechanics perspective, and to properly understand the biomechanical factors that lead to acute and gradual changes of vascular function and health. The goal of the present paper is to review Lagrangian methods that have been used in post-processing velocity data of cardiovascular flows.

Original languageEnglish (US)
Pages (from-to)41-58
Number of pages18
JournalAnnals of Biomedical Engineering
Volume43
Issue number1
DOIs
StatePublished - Jan 2014
Externally publishedYes

Keywords

  • Advection
  • Blood flow
  • Coherent structures
  • Computational fluid dynamics
  • Modeling
  • Particle tracking
  • Platelets
  • Transport

ASJC Scopus subject areas

  • Biomedical Engineering

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