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May 1, 1979Journal of Biomechanical Engineering

Analysis of Fully Developed Unsteady Viscous Flow in a Curved Elastic Tube Model to Provide Fluid Mechanical Data for Some Circulatory Path-Physiological Situations and Assist Devices

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Population

Curved elastic tube model simulating major arteries in the human circulatory system

Comparison

Simulation of unsteady flow component of… vs Steady flow component

Design

Preclinical

Authors

KCK. B. ChandranUniversity of IowaRHRonald R. HoseyPurdue University West LafayetteDGDhanjoo N. GhistaMichigan Technological University

Discussion

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Implication

Unsteady shear may predominate in elastic vessels; hypothesis-generating for arteriosclerosis etiology and device hemodynamics.

Structured PICO

P
Population
Curved elastic tube model simulating major arteries in the human circulatory system
I
Intervention
Simulation of unsteady flow component of pulsatile flow using superposition of the first six Fourier components of a derived oscillatory flow solution
C
Comparator
Steady flow component
O
Outcome
Flow patterns, wall shear stress, and hoop and axial stresses in the wallsurrogate

Computational modeling reveals that unsteady flow components in curved elastic tubes produce significantly higher shear stress than steady flow, providing insights for arteriosclerosis etiology and extracorporeal device design.

Cite This Study

Chandran et al. (1979) studied this question.

synapsesocial.com/papers/6a90dedff7c35110f1360678https://doi.org/10.1115/1.3426232
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1A New System to Analyze Pulsatile Flow Characteristics in Elastic Tubes for Hemodynamic Applications2008 · 9 citations
  2. 2Analytical solution for pulsatile axial flow velocity waveforms in curved elastic tubes2001 · 13 citations
  3. 3Numerical simulation of fully developed sinusoidal and pulsatile (physiological) flow in curved tubes1985 · 77 citations
  4. 4Time-Dependent Flow of a Couple Stress Fluid in an Elastic Circular Cylinder with Application to the Human Circulatory System2020 · 2 citations
  5. 5Nonlinear analysis of oscillatory flow in the annulus of an elastic tube: Application to catheterized artery2001 · 31 citations