Peristaltic transport in an elastic tube under the influence of dilating forcing amplitudes  

作　　者：Sanjay Kumar Pandey Amirlal Singh 

机构地区：[1]Department of Mathematical Sciences Indian Institute of Technology(BHU)Varanasi-221005,India

出　　处：《International Journal of Biomathematics》2020年第4期167-179,共13页生物数学学报（英文版）

摘　　要：We investigate flow through an elastic tube which is constrained to a prescribed external forcing consisting of a progressive travelling wave.Such a flow dynamics is closely related to that in the oesophageal tube.The mechanics of the tube is characterized by a relationship between transmural pressure difference and radial variation of the tube.Dimensionless radial variation,assumed to be small,is studied by perturbation techniques.Hesults demonstrate that the elasticity of the tube plays a significant role in the flow dynamics.An increment in the forcing amplitude of the inward radial force enhances pressure,time-averaged volume flow rate and hence axial and radial velocities.lt is revealed that the elastic nature of the oesophageal tube favors swallowing.

关 键 词：PERISTALSIS OESOPHAGUS elastic tube dilating forcing amplitude 

分 类 号：O35[理学—流体力学]