Key result
Liquid-filled elastic tubes exhibit smaller non-linear effects during large amplitude motion than gasdynamics or water waves.
Why the study?
Unsteady, large-amplitude motion of viscous liquid in long elastic tubes relevant to physiological blood flow in larger arteries requires theoretical and experimental investigation.
Design
Theoretical and experimental study using quasi-one-dimensional model and perturbation expansion
Authors
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Smaller nonlinear effects in liquid-filled tubes than in gasdynamics; leaves open refinement of cardiovascular flow models.
Olsen et al. (1967) studied Blood flow in the larger arteries. Non-linear effects due to large amplitude motion in liquid-filled elastic tubes were found to be not as large as those found in similar problems in gasdynamics and water waves.
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