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February 1, 1982Journal of Biomechanical Engineering

A Comparison of Steady and Pulsatile Flow in Symmetrically Branched Tubes

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Authors

FWF. J. WalburnMiami Heart Research InstitutePSPaul D. SteinVascular / Pulmonary Vascular

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Implication

Randomized trial compares flow characteristics in symmetrically branched tubes, suggesting inaccuracies in flow characterization.

Key Points

  • This research aims to compare the flow characteristics in symmetrical bifurcations under steady and pulsatile conditions.
  • Flow was visualized using neutrally buoyant particles.
  • Branch-to-trunk area ratios of 0.4, 0.8, and 1.2 were examined.
  • The flow characteristics during both steady and pulsatile conditions were assessed.
  • No secondary flow was observed in branches at a 0.4 branch-to-trunk ratio for either flow type.
  • Secondary velocity patterns were not present in branches at ratios of 0.8 and 1.2 during pulsatile flow, but were seen during steady flow.
  • Characterizing pulsatile flow based on steady flow at the same Reynolds number may be inaccurate.

Cite This Study

Walburn et al. (1982) studied this question.

synapsesocial.com/papers/6a5e977e3ded86b8acaeec02https://doi.org/10.1115/1.3138306
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Also Consider

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

  1. 1Three‐dimensional pulsatile flow through a bifurcation1997 · 8 citations
  2. 2Unsteady flow in a branch1976 · 35 citations
  3. 3Blood flow in branching vessels1976 · 22 citations
  4. 4Effect of branchings on blood flow in the system of human coronary arteries2011 · 22 citations
  5. 5Calculations of pulsatile flow through a branch: implications for the hemodynamics of atherogenesis.1975 · 93 citations