Article
Biophysics
Guy Elisha, Shashank Acharya, Sourav Halder, Dustin A. Carlson, Wenjun Kou, Peter J. Kahrilas, John E. Pandolfino, Neelesh A. Patankar
Summary: The study focused on deducing mechanical properties of the esophagus using FLIP device data, and conducted a parametric study to identify peristaltic regimes. The analysis revealed insights on the effect of tube stiffness, fluid density, and contraction strength on resulting esophagus shape.
BIOMECHANICS AND MODELING IN MECHANOBIOLOGY
(2022)
Article
Engineering, Multidisciplinary
A. Zeeshan, A. Riaz, Faris Alzahrani, A. Moqeet
Summary: This study theoretically analyzed the transport of two immiscible fluids in a long flexible tube and solved the problem using a model. The results showed that the heat transfer and fluid viscosity had different relationships under different conditions. This research is important for targeted drug delivery and biomedical research.
MATHEMATICAL PROBLEMS IN ENGINEERING
(2022)
Article
Mechanics
Kathleen Feigl, Franz X. Tanner
Summary: The behavior of liquid drops in the retropulsive jet produced by a peristaltic wave is computationally investigated. The effect of various parameters, such as interfacial tension, viscosity ratio, relative occlusion, and initial drop position, on the drop's behavior and breakup characteristics is determined. The study finds that the breakup regimes are bounded and there is an optimal capillary number for breakup.
Article
Mechanics
Guofa Ji, Shaoqi Chen, Tong Zhou, Zhiwen Huang, Fengxia Li
Summary: This paper introduces a new method of calculating network fracture conductivity based on electrical similitude principle and experimental data. The accuracy of this method is verified through comparison of experimental and prediction data, providing a reference for the optimization of fracture network conductivity in shale reservoir multi-staged fracturing.
Article
Multidisciplinary Sciences
A. M. Abd-Alla, S. M. Abo-Dahab, Esraa N. Thabet, M. A. Abdelhafez
Summary: In this paper, the interaction of heat and mass transfer in the peristaltic flow of a magnetic field fractional second-grade fluid in brain imaging diagnosis is theoretically investigated. The analytical solution is obtained and the effects of various physical parameters on temperature, concentration, velocity, etc. are discussed and compared with prior results.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Maimona Rafiq, Asma Shaheen, Youssef Trabelsi, Sayed M. M. Eldin, M. Ijaz Khan, Dhia Kadhm Suker
Summary: This study discusses the peristaltic flow of Jeffrey fluid through a porous wall channel, considering magnetohydrodynamic effects. Heat and mass transfers are discussed with activation energy and constant heat source/sink effects, along with a chemical reaction. The Lubrication approach is used to simplify the resulting non-linear equations. Graphical results are presented for various flow parameters, showing parabolic behavior for velocity and sinusoidal nature for heat transfer and pressure gradient. The study is important for understanding physiological systems such as blood flow.
SCIENTIFIC REPORTS
(2023)
Article
Mathematics, Interdisciplinary Applications
Maria Athar, Yasir Khan, Safia Akram, Khalid Saeed, A. Alameer, Anwar Hussain
Summary: This study investigates the effects of double-diffusivity convection and partial slip with an inclined magnetic field on peristaltic propulsion in an asymmetric channel for Oldroyd-4 constants nanofluids. The mathematical model is simplified using lubrication methodology, and the numerical scheme is used to calculate the solution of coupled nonlinear partial differential equations. The study finds that the temperature rises and the concentration falls with increasing Brownian motion and thermophoresis constraints.
Article
Engineering, Multidisciplinary
W. Mahmood, M. Sajid, N. Ali, M. N. Sadiq
Summary: In this article, a new boundary condition for slip in peristaltic transport for a micropolar fluid within an asymmetric medium is discussed. The effects of lubricant parameter on the flow characteristics are studied, and exact solutions are obtained through mathematical analysis. It is found that the flow pattern changes under the influence of lubrication.
AIN SHAMS ENGINEERING JOURNAL
(2022)
Article
Geosciences, Multidisciplinary
Fanfan Shao, Junhu Wu, Wanghai Tao, Quanjiu Wang, Yuchen Li, Senlin Zeng
Summary: This study developed mathematical models to predict water and nutrient loss from farmland in the Chinese Loess Plateau and validated the models with experimental data. The results showed that improving soil surface conditions to reduce nutrient loss is an effective method to prevent and control agricultural non-point source pollution.
Article
Mechanics
O. Ashtari, M. Pourjafar-Chelikdani, K. Gharali, K. Sadeghy
Summary: This study numerically investigates the peristaltic transport of elliptic particles suspended in Newtonian fluids. The results demonstrate that aspect ratio and initial inclination angle significantly affect the particle transport. Circular particles move faster and experience less shear stress under free-pumping mode, while elliptic particles are predicted to move faster above a critical Reynolds number due to hydrodynamic instability.
Article
Gastroenterology & Hepatology
Ali Zifan, Vignesh Gandu, Melissa Ledgerwood, Ravinder Mittal
Summary: Intraluminal impedance recordings can measure luminal distension in the esophagus. Factors such as posture and bolus viscosity affect bolus flow rate, esophageal wall tension, and esophageal wall distensibility during swallow-induced primary peristalsis.
NEUROGASTROENTEROLOGY AND MOTILITY
(2022)
Article
Engineering, Multidisciplinary
N. M. Hafez, A. M. Abd-Alla, T. M. N. Metwaly
Summary: In this study, the influence of heat and mass transfer on the hydro-magnetic peristaltic flow of a Casson fluid in a rotating inclined system through an asymmetric channel was analyzed. The governing equations of the model were obtained, simplified using long wavelength and low Reynolds number assumptions, and then addressed analytically. The numerical results showed the impacts of embedded parameters on various flow properties and patterns. This research is significant in the fields of biomedical engineering and crude oil refinement, and presents applications for electromagnetic peristaltic pumps.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Mechanics
Kaleem Ullah, Nasir Ali, Sadaqut Hussain
Summary: This article uses bifurcation analysis to study the characteristics of peristaltic transport of viscoelastic fluid through an axisymmetric tube, finding that bifurcation in the flow occurs at large flow rates for high extensional parameters and Weissenberg numbers. The results are validated through comparison with existing literature.
Article
Biophysics
Hany A. A. Hosham, Hamed M. M. Sayed
Summary: This paper applies the tools of dynamical systems theory to study the streamline patterns and their bifurcations for ciliary-induced peristalsis of non-Newtonian fluid with hybrid nanoparticles in a tube with heat source effect. The novelty of this study lies in its ability to control the position of equilibrium points and identify global bifurcations that reflect key dynamic properties of the model. The findings reveal complex behavior that governs transitions between qualitatively different modes and trapping phenomena.
BIOMECHANICS AND MODELING IN MECHANOBIOLOGY
(2023)
Article
Energy & Fuels
Fan Yang, Luyan Fan, Yuwei Chai, Yating Zheng, Dawei Qu
Summary: A suitable flow field structure can enhance the mass transfer in VRFBs. By establishing a 3D model, it is found that the double spiral flow field improves the discharge performance and pressure drop of VRFBs compared to other flow fields, as well as increases energy efficiency.
JOURNAL OF ENERGY STORAGE
(2023)
