Pumping Patterns and Work Done During Peristalsis in Finite-Length Elastic Tubes.

ABSTRACT: Balloon dilation catheters are often used to quantify the physiological state of peristaltic activity in tubular organs and comment on their ability to propel fluid which is important for healthy human function. To fully understand this system's behavior, we analyzed the effect of a solitary peristaltic wave on a fluid-filled elastic tube with closed ends. A reduced order model that predicts the resulting tube wall deformations, flow velocities, and pressure variations is presented. This simplified model is compared with detailed fluid-structure three-dimensional (3D) immersed boundary (IB) simulations of peristaltic pumping in tube walls made of hyperelastic material. The major dynamics observed in the 3D simulations were also displayed by our one-dimensional (1D) model under laminar flow

SUBMITTER: Acharya S 

PROVIDER: S-EPMC8086188 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature