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Pandey SK, Chaube MK, Tripathi D. Flow Characteristics of Distinctly Viscous Multilayered Intestinal Fluid Motion. Appl Bionics Biomech. 2015;2015:515241doi: 10.1155/2015/515241.
Pandey, S. K., Chaube, M. K., & Tripathi, D. (2015). Flow Characteristics of Distinctly Viscous Multilayered Intestinal Fluid Motion. Applied bionics and biomechanics, 2015515241. https://doi.org/10.1155/2015/515241
Pandey, S K, et al. "Flow Characteristics of Distinctly Viscous Multilayered Intestinal Fluid Motion." Applied bionics and biomechanics vol. 2015 (2015): 515241. doi: https://doi.org/10.1155/2015/515241
Pandey SK, Chaube MK, Tripathi D. Flow Characteristics of Distinctly Viscous Multilayered Intestinal Fluid Motion. Appl Bionics Biomech. 2015;2015:515241. doi: 10.1155/2015/515241. Epub 2015 May 14. PMID: 27041980; PMCID: PMC4745478.
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Appl Bionics Biomech. 2015;2015:515241. doi: 10.1155/2015/515241. Epub 2015 May 14.

Flow Characteristics of Distinctly Viscous Multilayered Intestinal Fluid Motion.

Applied bionics and biomechanics

S K Pandey, M K Chaube, Dharmendra Tripathi

Affiliations

  1. Department of Mathematical Sciences, Indian Institute of Technology, Banaras Hindu University, Varanasi 221005, India.
  2. Department of Mathematics, Echelon Institute of Technology, Faridabad, Haryana 121101, India.
  3. Department of Mechanical Engineering, Manipal University, Jaipur, Rajasthan 303007, India.

PMID: 27041980 PMCID: PMC4745478 DOI: 10.1155/2015/515241

Abstract

The goal of this investigation is to study the three layered (core layer, intermediate layer, and peripheral layer) tubular flow of power law fluids with variable viscosity by peristalsis in order to investigate the strength of the role played by an artificially generated intermediate layer to ease constipation. The solution is carried out under the long wavelength and low Reynolds number approximations in the wave frame of reference as the flow is creeping one. The stream functions for each layer such as core layer, intermediate layer, and peripheral layer are determined. The expressions for axial pressure gradient, interfaces, trapping, and reflux limits are obtained. The effects of power law index and viscosities on pressure across one wavelength, mechanical efficiency, and trapping are discussed numerically. It is found that the pressure required to restrain flow rates and the mechanical efficiency increase with the viscosities of the intermediate and peripheral layers as well as with the flow behaviour index. It is observed that the axisymmetric flow in intestines is less prone to constipation than two-dimensional flow and may be more easily overcome with introducing a viscous intermediate layer.

References

  1. Phys Rev E Stat Nonlin Soft Matter Phys. 2009 Nov;80(5 Pt 2):056307 - PubMed
  2. J Theor Biol. 2011 Jun 7;278(1):11-9 - PubMed
  3. Phys Rev E Stat Nonlin Soft Matter Phys. 2012 Feb;85(2 Pt 1):020902 - PubMed

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