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Biofluid Mechanical Modelling of Respiratory System

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Biosciences and Bioengineering".

Deadline for manuscript submissions: closed (31 July 2021) | Viewed by 2702

Special Issue Editor


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Guest Editor
School of Mechanical Engineering, Kyungpook National University, Daegu, Korea
Interests: biofluids; computational fluid dynamics; computational modeling; biomedical imaging; machine learning; finite element simulation; airway resistance; respiratory disease; asthma; chronic obstructive pulmonary disease; quantitative computed tomography

Special Issue Information

Dear Colleagues,

Due to the complexity of airway and lung structures, it has been challenging to understand their fundamental physiology and mechanics, especially in biofluid perspectives. The airways of the respiratory system contain multiscale fractal structures, so they haves a broad range of flow structure from laminar, transitional, and turbulent flows. With a recent advance in computational methods and experimental settings, the respiratory system has been investigated in a comprehensive manner by many biomechanical engineers. This Special Issue is open to all kinds of the state-of-the art and innovative biofluid mechanical modeling in the respiratory system. Studies of disease modeling such as asthma, COPD, fibrosis, and more are encouraged to be submitted. The current Issue of “Biofluid Mechanical Modelling of Respiratory System” is the right place to publish both numerical and experimental studies in biofluid mechanics associated with the respiratory system.

Prof. Dr. Sanghun Choi
Guest Editor

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Keywords

  • Biofluids
  • Biomechanical engineering
  • Fluid mechanics
  • Lung mechanics
  • Computational fluid dynamics
  • Animal model
  • Airway resistance
  • Surface tension
  • Computational method
  • Numerical simulation
  • Alveoli mechanics
  • Experimental measures
  • Disease modeling

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Published Papers (1 paper)

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Research

20 pages, 7759 KiB  
Article
Inertial Flow of Viscoelastic Second-Grade Fluid in a Ciliated Channel under a Magnetic Field and Darcy’s Resistance
by Khadija Maqbool, Naeema Manzoor, Sebastien Poncet and Abdul Majeed Siddiqui
Appl. Sci. 2021, 11(9), 3819; https://doi.org/10.3390/app11093819 - 23 Apr 2021
Cited by 5 | Viewed by 2183
Abstract
This paper proposes a mathematical analysis of the inertial flow of an MHD second-grade non-Newtonian fluid in a ciliated channel. The two-dimensional flow is modelled under the effect of inertial forces, magnetic field and Darcy’s resistance, which make the system of partial differential [...] Read more.
This paper proposes a mathematical analysis of the inertial flow of an MHD second-grade non-Newtonian fluid in a ciliated channel. The two-dimensional flow is modelled under the effect of inertial forces, magnetic field and Darcy’s resistance, which make the system of partial differential equations highly non-linear. To solve the complex system of partial differential equations, the Homotopy Perturbation Method (HPM) is preferred. The HPM solutions for the velocity profile, stream function and pressure gradient are obtained using the software MATHEMATICA. The significances of the Reynolds number (due to inertial forces), Hartmann number (due to magnetic field), porosity parameter (due to Darcy’s resistance) and fluid parameters (related to the second-grade fluid) on the pressure gradient, stream function and velocity profile are discussed in detail. The pertinent parameters show that the horizontal velocity decays in the presence of a magnetic field, whereas it rises under the effect of inertial forces, Darcy’s resistance and fluid viscosity in the centre of the channel. This research indicates that, for the ciliary flow of a second-grade fluid, a favourable pressure gradient (negative pressure gradient) in the horizontal direction increases when applying a magnetic field, whereas it decreases due to the porous medium. This mathematical model can be helpful to observe ciliary activity under magnetic resonance imaging, when ciliary activity is abnormal. Full article
(This article belongs to the Special Issue Biofluid Mechanical Modelling of Respiratory System)
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