Resonances in Pulsatile Channel Flow with an Elastic Wall

Xu D, Heil M, Seeböck T, Avila M (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Physical Review Letters American Physical Society

Book Volume: 125

Journal Issue: 25

DOI: 10.1103/PhysRevLett.125.254501

Abstract

Interactions between fluids and elastic solids are ubiquitous in applications ranging from aeronautical and civil engineering to physiological flows. Here we study the pulsatile flow through a two-dimensional Starling resistor as a simple model for unsteady flow in elastic vessels. We numerically solve the equations governing the flow and the large-displacement elasticity and show that the system responds as a forced harmonic oscillator with nonconventional damping. We derive an analytical prediction for the amplitude of the oscillatory wall deformation, and thus the conditions under which resonances occur or vanish.

Authors with CRIS profile

Thomas Seeböck Lehrstuhl für Strömungsmechanik

Involved external institutions

Universität Bremen DE Germany (DE) University of Manchester GB United Kingdom (GB)

How to cite

APA:

Xu, D., Heil, M., Seeböck, T., & Avila, M. (2020). Resonances in Pulsatile Channel Flow with an Elastic Wall. Physical Review Letters, 125(25). https://dx.doi.org/10.1103/PhysRevLett.125.254501

MLA:

Xu, Duo, et al. "Resonances in Pulsatile Channel Flow with an Elastic Wall." Physical Review Letters 125.25 (2020).

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