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Journal articles on the topic 'Study of fluid flow'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Wang, Y., M. Bortolotto, S. Suo, C. O’Sullivan, M. J. Blunt, and M. Sawada. "Pore Scale Study of Polymer Fluid Flow." IOP Conference Series: Earth and Environmental Science 1480, no. 1 (2025): 012114. https://doi.org/10.1088/1755-1315/1480/1/012114.

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Abstract Preventing excavations from collapsing before inserting the permanent structure is essential in many geotechnical projects. Support fluids, most commonly comprising suspensions of bentonite clay, are one way to achieve this support. Compared to bentonite slurries, support systems that use polymer fluids are economical and have a smaller environmental impact. Currently, a poor understanding of how these support fluids achieve support hinders the broad application of these materials in ground engineering. One key issue is quantifying the fluid-particle interaction force, which ultimatel

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2

Choi, Hyo Won, and Abdul I. Barakat. "Numerical study of the impact of non-Newtonian blood behavior on flow over a two-dimensional backward facing step." Biorheology: The Official Journal of the International Society of Biorheology 42, no. 6 (2005): 493–509. http://dx.doi.org/10.1177/0006355x2005042006001.

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Endothelial cell (EC) responsiveness to shear stress is essential for vasoregulation and plays a role in atherogenesis. Although blood is a non-Newtonian fluid, EC flow studies in vitro are typically performed using Newtonian fluids. The goal of the present study was to determine the impact of non-Newtonian behavior on the flow field within a model flow chamber capable of producing flow disturbance and whose dimensions permit Reynolds and Womersley numbers comparable to those present in vivo. We performed two-dimensional computational fluid dynamic simulations of steady and pulsatile laminar f

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Pepe, Vinicius, Antonio F. Miguel, Flávia Zinani, and Luiz Rocha. "Numerical Study of Carreau Fluid Flow in Symmetrically Branched Tubes." Symmetry 17, no. 1 (2024): 48. https://doi.org/10.3390/sym17010048.

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The non-Newtonian Carreau fluid model is a suitable model for pseudoplastic fluids and can be used to characterize fluids not so different from biological fluids, such as the blood, and fluids involved in geological processes, such as lava and magma. These fluids are frequently conveyed by complex flow structures, which consist of a network of channels that allow the fluid to flow from one place (source or sink) to a variety of locations or vice versa. These flow networks are not randomly arranged but show self-similarity at different spatial scales. Our work focuses on the design of self-simi

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Hsu, C. H., S. Y. Hu, K. Y. Kung, C. C. Kuo, and C. C. Chang. "A Study on the Flow Patterns of a Second Grade Viscoe-Lastic Fluid Past a Cavity in a Horizontal Channel." Journal of Mechanics 29, no. 2 (2012): 207–15. http://dx.doi.org/10.1017/jmech.2012.143.

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AbstractThis paper studies the behavior of second grade viscoelastic fluid past a cavity in a horizontal channel. The effects of Reynolds number, fluid elasticity and the aspect ratio of the cavity on the flow field are simulated numerically. The equations are converted into the vorticity and stream function equations. The solution is obtained by the finite difference method.The behavior of viscoelastic fluids is quite different from the Newtonian fluid, due to the effects of fluid elasticity. Only one flow pattern appears when the Newtonian fluid past the cavity. However, three kinds of flow

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Zhang, Xiangxiang, Kai Gu, Chengyu Liu, Yangbing Cao, J. G. Wang, and Feng Gao. "Study on Fluid Front Motion of Water, Nitrogen, and CO2 during Anisotropic Flow in Shale Reservoirs." Geofluids 2022 (December 5, 2022): 1–9. http://dx.doi.org/10.1155/2022/7202972.

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The fluid front motion is an important phenomenon during anisotropic fluid flow in rock engineering. The pore pressure and mechanical responses may be significantly influenced and show an obvious difference near the moving fluid front. However, few studies have been conducted to investigate the front motion of different types of fluids during anisotropic fluid flow. In this work, a numerical model was proposed to detect the front motion of water, nitrogen, and CO2 in anisotropic shale reservoirs. The full coupling effects among mechanical deformation, fluid flow, and moving boundary in anisotr

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Liao, Chang Rong, J. H. Hao, D. X. Zhao, and K. L. Wang. "Study on Design Method of Magneto-Rheological Fluid Shock Absorber Employing Shear Rate Profiles and Experimental Tests." Applied Mechanics and Materials 121-126 (October 2011): 1095–99. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.1095.

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The flow differential equation for Magneto-rheological (MR) fluids in annular channels of MR fluid shock absorber is set up and several rational simplifications are made. Analytical shear stress profiles of MR fluids through annular channels are obtained via solution of the flow differential equation. An analytical study on MR fluid shock absorber is present employing shear stress profiles. Both boundary conditions and compatible conditions are established. Both flow velocity profiles and total volumetric flow rate are developed by integration by parts and numerical integration. The prediction

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Norasia, Yolanda, Mohamad Tafrikan, and Bhamakerti Hafiz Kamaluddin. "ANALYSIS OF THE MAGNETOHYDRODYNAMICS NANOVISCOUS FLUID BASED ON VOLUME FRACTION AND THERMOPHYSICAL PROPERTIES." BAREKENG: Jurnal Ilmu Matematika dan Terapan 17, no. 1 (2023): 0331–40. http://dx.doi.org/10.30598/barekengvol17iss1pp0331-0340.

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Fluid flow control is applied in engineering and industry using computational fluid dynamics. Based on density, fluids are divided into two parts, namely non-viscous fluids and viscous fluids. Nanofluid is a fluid that has non-viscous and viscous characteristics. Nanoviscos fluid flow is interesting to study by considering the effect of volume fraction and thermophysical properties. Nanoviscous fluid flow models form dimensional equations that are then simplified into dimensionless equations. Dimensionless equations are converted into non-similar equations using flow functions and non-similar

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Radhika, T. S. L., and T. Raja Rani. "On a Study of Flow Past Non-Newtonian Fluid Bubbles." WSEAS TRANSACTIONS ON FLUID MECHANICS 16 (April 15, 2021): 79–91. http://dx.doi.org/10.37394/232013.2021.16.8.

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In the current work, we aim at finding an analytical solution to the problem of fluid flow past a pair of separated non-Newtonian fluid bubbles. These bubbles are assumed to be spherical and non-permeable with the non-Newtonian fluid, viz. the couple stress fluid filling their interior. Further, the bubbles are presumed to be static in the flow domain, where a Newtonian fluid streams past these bubbles with a constant velocity (U) along the negative x-direction. We developed a mathematical model in the bipolar coordinate system for the fluid flow outside the bubbles and the spherical coordinat

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Hirpa, Mehmet Meric, and Ergun Kuru. "Hole Cleaning in Horizontal Wells Using Viscoelastic Fluids: An Experimental Study of Drilling-Fluid Properties on the Bed-Erosion Dynamics." SPE Journal 25, no. 05 (2020): 2178–93. http://dx.doi.org/10.2118/199636-pa.

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Summary An experimental study was conducted to determine the influence of fluid elastic properties on the critical velocity, frictional pressure drops, and the turbulent-flow characteristics of polymer-fluid flow over a sand bed deposited in a horizontal pipe. Fluids were prepared using a special technique, which allowed for the alteration of fluid elastic properties while keeping the shear viscosity constant. By conducting experiments under controlled conditions, we were able to quantify the individual effect of the fluid elasticity (independent from shear viscosity) on the critical flow rate

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10

Kalyan, Shreedevi, and Jumanne Mng’ang’a. "Numerical study of electrically conducting MHD fluids in a vertical channel with Jeffrey fluid flow and first order chemical reaction." Thermal Science and Engineering 6, no. 2 (2024): 3968. http://dx.doi.org/10.24294/tse.v6i2.3968.

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This research paper explores the influence of first order chemical reaction on sustainable properties of electrically conducting magnetohydrodynamic (MHD) fluids in a vertical channel with the unique characteristics of Jeffrey fluid flow. The mathematical model of MHD flow with Jeffrey fluid and chemical reaction incorporates the impacts of viscous dissipation, Joule heating and a non-Newtonian fluid model with viscoelastic properties in the flow regions. The governing equations of the flow field were solved using finite difference method and impacts of flow parameters on the flow characterist

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Song, Jinhyeuk, Jaekyeong Jang, Taehoon Kim, and Younghak Cho. "Particle Separation in a Microchannel with a T-Shaped Cross-Section Using Co-Flow of Newtonian and Viscoelastic Fluids." Micromachines 14, no. 10 (2023): 1863. http://dx.doi.org/10.3390/mi14101863.

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In this study, we investigated the particle separation phenomenon in a microchannel with a T-shaped cross-section, a unique design detailed in our previous study. Utilizing a co-flow system within this T-shaped microchannel, we examined two types of flow configuration: one where a Newtonian fluid served as the inner fluid and a viscoelastic fluid as the outer fluid (Newtonian/viscoelastic), and another where both the inner and outer fluids were Newtonian fluids (Newtonian/Newtonian). We introduced a mixture of three differently sized particles into the microchannel through the outer fluid and

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BECKETT, F. M., H. M. MADER, J. C. PHILLIPS, A. C. RUST, and F. WITHAM. "An experimental study of low-Reynolds-number exchange flow of two Newtonian fluids in a vertical pipe." Journal of Fluid Mechanics 682 (July 28, 2011): 652–70. http://dx.doi.org/10.1017/jfm.2011.264.

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We present an experimental study of a buoyancy-driven, low-Reynolds-number (Re < 1) exchange flow of two Newtonian fluids in a vertical cylindrical pipe (length 1 m and diameter 38.4 mm) connecting two fluid reservoirs. The denser, more viscous fluid was golden syrup and the less dense, less viscous fluid was a golden syrup–water solution; the ratio of the viscosities of the two fluids (β) ranged from 2 to 1180. Flows were initiated by removing a bung in the base of the upper reservoir or sliding out a gate positioned at the top, middle or bottom of the pipe. We observe the flows over long

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13

Wu, Liang, and Bao Liang Wang. "Experimental Study on Unidirectional Flow Characteristics of Flow Diode." Bulletin of Science and Practice, no. 6 (June 15, 2023): 286–99. http://dx.doi.org/10.33619/2414-2948/91/37.

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Flow diode is a kind of control fluid one-way flow of components, it has many advantages, such as simple structure, no rotating parts, no need for external control, power, high reliability, in the medical industry, nuclear industry, petrochemical industry, flow diode has a wide range of applications. By studying relevant literature, combined with the actual situation, based on the experimental study method, using air pump, pressure regulator, 3 d printers and other laboratory equipment, by changing the pump seal the air inlet, simulation of different flow diode under different conditions make

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Yufita, Evi, Muhammad Isa, and Aztarina Ermy Vijaya. "Study of Water Chemical Compounds at Geothermal Area: Case on Geothermal Weh Island, Jaboi." Journal of Aceh Physics Society 9, no. 1 (2020): 20–25. http://dx.doi.org/10.24815/jacps.v9i1.15229.

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Kandungan senyawa kimia air sangat berguna dalam penentuan karakteristik fluida panas bumi terutama sumbernya dan arah aliran fluida tersebut. Oleh karena itu dilakukan penelitian untuk mengkaji senyawa kimia air yang terkandung pada lapangan panas bumi. Penelitian ini dilakukan dengan metode Titrasi dan Spektrofotometer Serapan Atom (SSA). Pengambilan sampel air dilakukan di dua lokasi mata air panas. Untuk pengujian sampel dilakukan pada Balai Riset dan Standarisasi (Baristan) Banda Aceh. Pengolahan data dilakukan dengan perbandingan kandungan kimia air, sedangkan interpretasi menggunakan di

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15

Liu, Jianbin, Liguo Zhong, Tongchun Hao, and Yigang Liu. "Study on Flow Characteristics of Produced Fluid in Bohai Oilfield Cycle Steam Stimulated Heavy Oil Reservoir." IOP Conference Series: Earth and Environmental Science 966, no. 1 (2022): 012006. http://dx.doi.org/10.1088/1755-1315/966/1/012006.

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Abstract It is helpful to better understand the flow state of produced fluid in different stages by studying the flow characteristics of produced fluid of cycle steam stimulation (CSS in short) heavy oil reservoirs from the reservoir to the wellhead, and to provide more research for the CSS replacement technologies for a clear direction. However, there are few studies on the flow state of produced fluids, and the mechanism understanding is not very clear. This article starts with laboratory experiments to study the factors that affect the fluidity of heavy oil in the Bohai Oilfield. It is foun

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Pratama, Anjeryan Sapta, Evi Noviani, and Yudhi Yudhi. "FLUID FLOW MODELLING WITH FREE SURFACE." BAREKENG: Jurnal Ilmu Matematika dan Terapan 16, no. 4 (2022): 1147–58. http://dx.doi.org/10.30598/barekengvol16iss4pp1147-1158.

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Fluid is a substance that can flow in the form of a liquid or a gas. Based on the movement of the fluid is divided into static and dynamic fluids. This study discusses fluid dynamics, namely modelling fluid flow accompanied by a free surface and an obstacle in the fluid flow. Fluid modelling generally makes some basic assumptions into mathematical equations. The assumptions are incompressible, steady-state and irrotational. The steps to obtain a fluid flow model are using Newton’s second law, the law of conservation of mass, and the law of conservation of momentum to obtain the general Navier-

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17

Michallet, H., C. Mathis, P. Mai¨ssa, and F. Dias. "Flow Filling a Curved Pipe." Journal of Fluids Engineering 123, no. 3 (2001): 686–91. http://dx.doi.org/10.1115/1.1374442.

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A small scale experiment was designed to study the propagation of the front of a viscous fluid filling a curved pipe. Several Newtonian fluids with different viscosities and a non-Newtonian fluid have been used. The experiments show that there exists a minimum speed for completely filling the pipe, which depends on the parameters of the experiment (diameter d and radius of curvature R of the pipe, kinematic viscosity ν of the fluid). Appropriate dimensionless numbers are introduced to characterize the flow and optimal filling conditions.

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18

Guo, Shihan, and Xinhui Si. "Parametric study of the Giesekus fluid flow in a curved duct with square cross section." Physics of Fluids 34, no. 10 (2022): 103107. http://dx.doi.org/10.1063/5.0119071.

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In this paper, the log-conformation representation method (LCR) is applied in an orthogonal curvilinear coordinate system to study the Giesekus fluid flow in a curved duct. Derivations for evolution equations of LCR in this curvilinear coordinate system are presented. Secondary flow patterns and oscillation solutions are computed by using the collocation spectral method. The influence of a wide range of Dean number, Weissenberg number, and dimensionless mobility parameter α on fluid behaviors is studied. A six-cell secondary flow pattern is found under very low Dean number and relatively high

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19

Shaukat, Ayesha, Muhammad Mushtaq, Saadia Farid, Kanwal Jabeen, and Rana Muhammad Akram Muntazir. "A Study of Magnetic/Nonmagnetic Nanoparticles Fluid Flow under the Influence of Nonlinear Thermal Radiation." Mathematical Problems in Engineering 2021 (November 20, 2021): 1–15. http://dx.doi.org/10.1155/2021/2210414.

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The present research work scrutinizes numerical heat transfer in convective boundary layer flow having characteristics of magnetic ( Fe 3 O 4 ) and nonmagnetic ( Al 2 O 3 ) nanoparticles synthesized into two different kinds of Newtonian (water) and non-Newtonian (sodium alginate) convectional base fluids of casson nanofluid which integrates the captivating effects of nonlinear thermal radiation and magnetic field embedded in a porous medium. The characterization of electrically transmitted viscous incompressible fluid is taken into account within the Casson fluid model. The mathematical formul

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20

Sankar, D. S., and Usik Lee. "Pulsatile Flow of Two-Fluid Nonlinear Models for Blood Flow through Catheterized Arteries: A Comparative Study." Mathematical Problems in Engineering 2010 (2010): 1–21. http://dx.doi.org/10.1155/2010/121757.

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The pulsatile flow of blood through catheterized arteries is analyzed by treating the blood as a two-fluid model with the suspension of all the erythrocytes in the core region as a non-Newtonian fluid and the plasma in the peripheral layer as a Newtonian fluid. The non-Newtonian fluid in the core region of the artery is represented by (i) Casson fluid and (ii) Herschel-Bulkley fluid. The expressions for the flow quantities obtained by Sankar (2008) for the two-fluid Casson model and Sankar and Lee (2008) for the two-fluid Herschel-Bulkley model are used to get the data for comparison. It is no

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Provost, Alden M., and W. H. Schwarz. "A theoretical study of viscous effects in peristaltic pumping." Journal of Fluid Mechanics 279 (November 25, 1994): 177–95. http://dx.doi.org/10.1017/s0022112094003873.

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Intuition and previous results suggest that a peristaltic wave tends to drive the mean flow in the direction of wave propagation. New theoretical results indicate that, when the viscosity of the transported fluid is shear-dependent, the direction of mean flow can oppose the direction of wave propagation even in the presence of a zero or favourable mean pressure gradient. The theory is based on an analysis of lubrication-type flow through an infinitely long, axisymmetric tube subjected to a periodic train of transverse waves. Sample calculations for a shear-thinning fluid illustrate that, for a

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Ueyama, K. "A study of two-fluid model equations." Journal of Fluid Mechanics 690 (November 25, 2011): 474–98. http://dx.doi.org/10.1017/jfm.2011.452.

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AbstractA theoretical study of the interaction term in the two-fluid model equations is presented. The relevant Navier–Stokes equation is volume-integrated in a control volume fixed in a field of dispersed two-phase flow; then it is time-integrated. An expression for the interaction term is obtained in the limit of infinitesimal control volume, which rigorously fits to the two-fluid model equation based on time averaging. The interaction term is then analysed for dispersed two-phase flow with homogeneous particle size. The mathematical expression of the resulting interaction term clearly shows

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Devakar, M., Ankush Raje, and Shubham Hande. "Unsteady Flow of Couple Stress Fluid Sandwiched Between Newtonian Fluids Through a Channel." Zeitschrift für Naturforschung A 73, no. 7 (2018): 629–37. http://dx.doi.org/10.1515/zna-2017-0434.

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AbstractThe aim of this article is to study the unsteady flow of immiscible couple stress fluid sandwiched between Newtonian fluids through a horizontal channel. The fluids and plates are initially at rest. At an instant of time, a constant pressure gradient is applied along the horizontal direction to generate the flow. The time-dependent partial differential equations are solved numerically using the finite difference method. The continuity of velocities and shear stresses at the fluid-fluid interfaces has been considered. The obtained results are displayed through graphs and are discussed f

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de Riese, Tamara, Paul D. Bons, Enrique Gomez-Rivas, and Till Sachau. "Interaction between Crustal-Scale Darcy and Hydrofracture Fluid Transport: A Numerical Study." Geofluids 2020 (November 5, 2020): 1–14. http://dx.doi.org/10.1155/2020/8891801.

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Crustal-scale fluid flow can be regarded as a bimodal transport mechanism. At low hydraulic head gradients, fluid flow through rock porosity is slow and can be described as diffusional. Structures such as hydraulic breccias and hydrothermal veins both form when fluid velocities and pressures are high, which can be achieved by localized fluid transport in space and time, via hydrofractures. Hydrofracture propagation and simultaneous fluid flow can be regarded as a “ballistic” transport mechanism, which is activated when transport by diffusion alone is insufficient to release the local fluid ove

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Rhakasywi, Damora, Albi Hagi Rahmat, and Marcellino Rayhan Irwandi. "STUDY OF NOZZLE INJECTION PERFORMANCE USING CFD." Journal of Sustainable Mechanical Engineering 2, no. 2 (2024): 51–55. https://doi.org/10.54378/josme.v2i2.9780.

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In the current era of modern technology, a deep understanding of fluid flow and computational fluid dynamics (CFD) is crucial in developing and improving the design of engineering equipment, including nozzles. In this research, we apply CFD analysis to study the influence of nozzle design on injection molding nozzle performance. Our main goal is to understand and predict the fluid flow behavior inside the nozzle and can analyze flow characteristics such as speed, pressure. The nozzle geometry used is the inlet nozzle diameter of 35 mm and the outlet diameter of 3 mm. The meshing used is 70,578

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Yuan, Chao, Hong-Na Zhang, Li-Xia Chen, Jun-Long Zhao, Xiao-Bin Li, and Feng-Chen Li. "Numerical Study on the Characteristics of Boger Type Viscoelastic Fluid Flow in a Micro Cross-Slot under Sinusoidal Stimulation." Entropy 22, no. 1 (2020): 64. http://dx.doi.org/10.3390/e22010064.

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The cross-slot geometry plays an important role in the study of nonlinear effects of viscoelastic fluids. The flow of viscoelastic fluid in a micro cross-slot with a high channel aspect ratio (AR, the ratio of channel depth to width) can be divided into three types, which are symmetric flow, steady-state asymmetric flow and time-dependent flow under the inlet condition with a constant velocity. However, the flow pattern of a viscoelastic fluid in the cross-slot when a stimulation is applied at inlets has been rarely reported. In this paper, the response of cross-slot flow under an external sin

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NAKAJIMA, Tatsuya, and Hideyuki TSUKAGOSHI. "Fundamental Study on Fluid Pressure Magnet Flow." Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2019 (2019): 1P2—J01. http://dx.doi.org/10.1299/jsmermd.2019.1p2-j01.

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Jehhef, Kadhum A., Mohamed A. Siba, and Hayder S. Abdulamir. "Numerical Study of Effect of Using Nanofluids Flowing in Simply Supported Pipes on Vibrations Characteristics." Engineering and Technology Journal 38, no. 1A (2020): 43–56. http://dx.doi.org/10.30684/etj.v38i1a.1595.

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In general, internal vibrations within the pipelines caused by fluids being passing through a pipeline system can cause. These pipeline system can damage by the sudden amplified vibrations that weren’t considered at the design of the system, and flow induced vibrations resonate with the pipes natural frequency. Therefore, it is important to predict and identify the pipeline system vibrations during its lifetime. In this study by using MATLAB code as a CFD solver, it studied the forced and free vibrations caused by fluid flows at Reynolds number ranged as 0 < Re < 2500 for laminar flow an

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SUMIDA, Masaru. "NUMERICAL STUDY OF FLUID MOTION IN THE ENTRANCE REGION OF A STRAIGHT TUBE DURING OSCILLATORY FLOW(Flow Control 2)." Proceedings of the International Conference on Jets, Wakes and Separated Flows (ICJWSF) 2005 (2005): 471–76. http://dx.doi.org/10.1299/jsmeicjwsf.2005.471.

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Nakamura, Masanori, Shigeo Wada, Daisuke Mori, Ken-ichi Tsubota, and Takami Yamaguchi. "Computational Fluid Dynamics Study of the Effect of the Left Ventricular Flow Ejection on the Intraaortic Flow(Cardiovascular Mechanics)." Proceedings of the Asian Pacific Conference on Biomechanics : emerging science and technology in biomechanics 2004.1 (2004): 61–62. http://dx.doi.org/10.1299/jsmeapbio.2004.1.61.

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Berndt, Christian. "Focused fluid flow in passive continental margins." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 363, no. 1837 (2005): 2855–71. http://dx.doi.org/10.1098/rsta.2005.1666.

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Passive continental margins such as the Atlantic seaboard of Europe are important for society as they contain large energy resources, and they sustain ecosystems that are the basis for the commercial fish stock. The margin sediments are very dynamic environments. Fluids are expelled from compacting sediments, bottom water temperature changes cause gas hydrate systems to change their locations and occasionally large magmatic intrusions boil the pore water within the sedimentary basins, which is then expelled to the surface. The fluids that seep through the seabed at the tops of focused fluid fl

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Jenson, Amy, Mark Skidmore, Lucas Beem, Martin Truffer, and Scott McCalla. "Modeling saline-fluid flow through subglacial channels." Cryosphere 18, no. 11 (2024): 5451–64. http://dx.doi.org/10.5194/tc-18-5451-2024.

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Abstract. Subglacial hydrological systems impact ice dynamics, biological environments, and sediment transport. Previous numerical models of channelized subglacial flow have focused on freshwater in temperate ice without considering variable fluid chemistry and properties. Saline fluids can exist in cold glacier systems where freshwater cannot, making the routing of these fluids critical for understanding their influence on geochemical and physical processes in relevant glacial environments. This study advances previous efforts by modeling saline fluid in cold glacier systems, where variable f

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Ekadewi Anggraini Handoyo, Christian Ivan Soeyanto, and Sutrisno. "Experimental Study on Effect of Nano ZnO on the Cooling Performance of Motorcycle Radiator." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 100, no. 2 (2022): 169–80. http://dx.doi.org/10.37934/arfmts.100.2.169180.

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An internal combustion engine requires a proper cooling system to release heat from the engine. The working fluid or coolant in a water-cooled engine impacts the overall radiator cooling performance. Several studies show that nanopowder can increase the thermal performance of the base fluids, although the pressure drops increase significantly. This paper describes the experimental study of motorcycle radiator cooling performance using nanopowder ZnO with distilled water and commercial coolant as the base fluids. The study began by measuring the boiling point and the specific heat of the base f

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Chen, Cong Ping, Xiao Yun Wang, and Jie Guang Huang. "Study of the Wall Slip Effect on Viscous Fluid Micro-Extrusion Process." Applied Mechanics and Materials 799-800 (October 2015): 774–77. http://dx.doi.org/10.4028/www.scientific.net/amm.799-800.774.

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In micro-scale flow condition, the flow rate and fluid extrusion expansibility are always affected by the wall slip between the fluid and tube wall. In this research, a wall slip model based on a micro-tube flow was developed, and then the wall slip effect on the viscous fluid micro-extrusion process was explored by computational fluid dynamics (CFD) with different extruding pressures. The results showed that wall slip make the fluid resistance and expansibility decrease, and the fluid mass flow rate increase.

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Mihić, Stefan, Sorin Cioc, Ioan Marinescu, and Michael C. Weismiller. "3-D CFD Parametric Study of the Impact of the Fluid Properties and Delivery Conditions on Flow and Heat Transfer in Grinding." Advanced Materials Research 325 (August 2011): 225–30. http://dx.doi.org/10.4028/www.scientific.net/amr.325.225.

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Fluids have an important role in grinding. Correct fluid application results in enhanced process stability, better work piece quality, and tool life. This paper shows that Computational Fluid Dynamics (CFD) models can be used to simulate the fluid flow and heat transfer in a grinding process, replacing numerous experiments that are expensive, time-consuming, and have limited capabilities. The most important properties of created 3-D model are described, along with results obtained. The results show very detailed distributions of temperatures, pressures, and flow rates in and around the grindin

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Elalem, Messaouda, Hadi Taibi, Farid Messelmi, and Abdelaziz Rabehi. "A case study on the evolution of rigid zones within the permanent two-dimensional Herschel-Bulkley fluid flow." STUDIES IN ENGINEERING AND EXACT SCIENCES 5, no. 1 (2024): 114–30. http://dx.doi.org/10.54021/seesv5n1-007.

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The formation and development of undeformed regions during the flow of viscoplastic fluids can significantly affect fluid flow behaviour. They can impair the efficiency and effectiveness of industrial operations that use viscoplastic fluids. This paper uses numerical analysis to examine the emergence of rigid zones during non-stationary Herschel-Bulkley fluid flow across a square plate. The impact of pressure and yield stress on the behaviour of rigid zones over time is explored, and the development of the rigid zone area is shown. This work produced mathematical correlations that describe the

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Hussin, N. F. R., and N. Rosli. "Study of Underfill Flow in Microchip Packaging Using Ansys." Journal of Modern Manufacturing Systems and Technology 6, no. 2 (2022): 76–82. http://dx.doi.org/10.15282/jmmst.v6i2.8571.

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The project was related to microchip application where adhesive fluid is used to stick the microchip onto the electrical flat base. In this project, 5mm of width and length of microchip with 3 different types of solder ball diameter sizes are used in this project. The objective of the project is to study the flow pattern and velocity of fluid during injection based on the decided parameters, which are initial velocity, fluid viscosity, and the diameter of the solder ball. Each parameter that has been set produces a different outcome in terms of flow pattern and velocity of fluid. To maximise t

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Thiyana, Thyana, Ahmad Junaedi, Mumammad Arif Rahman, et al. "The Heat Transfer Coefficient in a Copper Pipe Flow System Using a 40/60 Volume Ratio Ethylene Glycol/Water (EG/H2O) Blended Fluid." Jurnal Teknik Mesin Mechanical Xplore 4, no. 1 (2023): 37–46. http://dx.doi.org/10.36805/jtmmx.v4i1.5570.

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This study discusses the performance of Ethaline Glycol/water (EG/H2O) fluids at a volume ratio of 40/60. EG/H2O fluids are widely used as basic fluids in cooling and heating system applications. The discussion of EG/H2O fluid performance is focused on the analysis of the heat transfer coefficient and pressure drop. The study used an experimental method using a suction test made of pure copper with an inner diameter, outer diameter and length of 16 mm, 19 mm and 1500 mm respectively. The EG/H2O volume ratio at 40/60 was selected as the input parameter. Other input parameters are variations in

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Stone, H. A., B. J. Bentley, and L. G. Leal. "An experimental study of transient effects in the breakup of viscous drops." Journal of Fluid Mechanics 173 (December 1986): 131–58. http://dx.doi.org/10.1017/s0022112086001118.

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A computer-controlled four-roll mill is used to examine two transient modes of deformation of a liquid drop: elongation in a steady flow and interfacial-tension-driven motion which occurs after the flow is stopped abruptly. For modest extensions, drop breakup does not occur with the flow on, but may occur following cessation of the flow as a result of deterministic motions associated with internal pressure gradients established by capillary forces. These relaxation and breakup phenomena depend on the initial drop shape and the relative viscosities of the two fluids. Capillary-wave instabilitie

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KUMAR, BIPIN, MARTIN CRANE, and YAN DELAURÉ. "ON THE VOLUME OF FLUID METHOD FOR MULTIPHASE FLUID FLOW SIMULATION." International Journal of Modeling, Simulation, and Scientific Computing 04, no. 02 (2013): 1350002. http://dx.doi.org/10.1142/s1793962313500025.

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Numerical study of multiphase fluid flows require mathematical methods for distinguishing interface between two fluids. The volume of fluid (VOF) method is one of such method which takes care of fluid shape in a local domain and reconstructs the interface from volume fraction of one fluid. Maintaining sharp interface during reconstruction is a challenging task and geometrical approach of VOF method better suits for incompressible fluids. This paper provides a complete mathematical discussion of extended form of VOF method using a approach known as piecewise linear interface calculation (PLIC).

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Chen, Mingqiang, Linsong Cheng, Renyi Cao, and Chaohui Lyu. "A Study to Investigate Fluid-Solid Interaction Effects on Fluid Flow in Micro Scales." Energies 11, no. 9 (2018): 2197. http://dx.doi.org/10.3390/en11092197.

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Due to micro-nanopores in tight formation, fluid-solid interaction effects on fluid flow in porous media cannot be ignored. In this paper, a novel model which can characterize micro-fluid flow in micro scales is proposed. This novel model has a more definite physical meaning compared with other empirical models. And it is validated by micro tube experiments. In addition, the application range of the model is rigorously analyzed from a mathematical view, which indicates a wider application scope. Based on the novel model, the velocity profile, the average flow velocity and flow resistance in co

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Voigt, A. "Fluid deformable surfaces." Journal of Fluid Mechanics 878 (September 4, 2019): 1–4. http://dx.doi.org/10.1017/jfm.2019.549.

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Lipid membranes are examples of fluid deformable surfaces, which can be viewed as two-dimensional viscous fluids with bending elasticity. With this solid–fluid duality any shape change contributes to tangential flow and vice versa any tangential flow on a curved surface induces shape deformations. This tight coupling between shape and flow makes curvature a natural element of the governing equations. The modelling and numerical tools outlined in Torres-Sánchez et al. (J. Fluid Mech., vol. 872, 2019, pp. 218–271) open a new field of study by enabling the exploration of the role of curvature in

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Podder, Satyabrata, Paulam Deep Paul, and Arunabha Chanda. "Magnetohydrodynamics (MHD) Induced Slip Flow of a Non-Newtonian Fluid through Circular Microchannels." Trends in Sciences 19, no. 19 (2022): 6180. http://dx.doi.org/10.48048/tis.2022.6180.

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The present numerical analysis reveals the nature of non-Newtonian fluid flow through circular microchannels under slip boundary conditions. The power law has been used for the simulation of the fluid flow, which considers a steady, laminar, incompressible non-Newtonian fluid acted upon by a constant, externally applied magnetic field. The flow is axisymmetric and slip boundary conditions are applied in the near wall. A constant magnetic flux has been applied on the wall boundary to analyze the effect of magnetic field on Xanthan solution in formic acid, a type of non-Newtonian fluid having el

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Jubaedah, Neng E., and Wahyudi W. Parnadi. "Study of Fluid Flow Movement by Using Self Potential Data." IOP Conference Series: Earth and Environmental Science 873, no. 1 (2021): 012082. http://dx.doi.org/10.1088/1755-1315/873/1/012082.

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Abstract The Self-Potential (SP) method is passive method in geophysics which works based on the natural presence of an electric field on the surface due to anomalies below the surface. SP value on surface can be generated by fluid flow through rock pores or fractures. We study fluid flow movement in subsurface using the velocity value of fluid flow derived from SP values measured on surface. For that purpose, we carried out mathematical modelling, connecting the Helmholtz-Smoluchovsky’s electrokinetic potential gradient equation with Darcy’s law. The velocity of fluid flow depends on the intr

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Jeong, Boyoung, Yumeng Zhao, Dong-Hun Kang, and Sheng Dai. "An experimental study of the effect of motile bacteria on the fluid displacement in porous media." E3S Web of Conferences 205 (2020): 08008. http://dx.doi.org/10.1051/e3sconf/202020508008.

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Multiphase flow patterns in porous media largely depend on the properties of the fluids and interfaces such as viscosity, surface tension, and contact angle. Microorganisms in soils change the fluid and interfacial properties, and thus can alter multiphase fluid flow in porous media. This study investigates the impact of motile bacterium Escherichia coli (E. coli) on fluid displacement patterns in a microfluidic chip. The fluid displacement is observed during the saturation and the desaturation processes of the microfluidic chip with and without E.coli suspension. Time-lapse photography result

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Yusuf, S. I. "Analytical Study of Viscous Fluid Movement in a Rectangular Pipe using Diffusion Magnetic Resonance Equation." Nigerian Journal of Theoretical and Environmental Physics 2, no. 3 (2024): 1–6. https://doi.org/10.62292/njtep.v2i3.2024.70.

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Silicene, a two-dimensional material analogous to graphene, has garnered Diffusion Magnetic Resonance Imaging (DMRI) equation is used in this research work to examine the flow of fluid in a rectangular. Having previously considered flow in cylindrical and spherical coordinates, this study explores the rectangular channel of a three dimensional - (3D) flow using DMRI equation evolved and solved analytically using the method of separation of variables (MSV) with appropriate boundary conditions applied. Relaxation times of three viscous fluids were used - crude oil, oil wax and black oil in the s

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Adluri, Indrasena. "Hodographic study of plane micropolar fluid flows." International Journal of Mathematics and Mathematical Sciences 18, no. 2 (1995): 357–64. http://dx.doi.org/10.1155/s0161171295000445.

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Equations of steady flow of a plane micropolar fluid are transformed to the hodograph plane by means of the Legendre transform function of the streamfunction. Results are summarized in the form of a theorem, some flow problems are investigated as applications of this theorem and exact solutions and geometry of the flow are obtained in each case.

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Ganji, Davood D., Mofid Gorji-Bandpy, and Mehdi Mostofi. "Study of Electroosmotic Flow in a Nanotube with Power Law Fluid." Applied Mechanics and Materials 110-116 (October 2011): 3633–38. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.3633.

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In this paper, electroosmotic phenomena in power law fluids are investigated. This assumption is applicable in many cases such as blood. Flow channels assumed to be in nanoscale. Navier-Stokes, Poisson-Boltzmann and electrochemical equilibrium equations govern these phenomena. It is notable that, these governing equations should be modified according to fluid complexity. Electroosmotic phenomena occur in the presence of electric double layer (EDL). Potential in the edge of the inner layer (stern layer) is called zeta potential. In this paper, according to follow the applicability of the subjec

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Daud Orba Topayung, Paul M. Rumagit, Toban Tiku Pairunan, Tammy T.V. Pangow, and Adolf Tonny Rasuh. "Experimental Study of Fluid Flow Losses at Several Turning Angles." Frontier Advances in Applied Science and Engineering 2, no. 1 (2024): 9–16. http://dx.doi.org/10.59535/faase.v2i1.238.

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This research, entitled Experimental Study of Fluid Flow Losses at Turns 30°, 45°, 60° and 90°, is a review of fluid (water) flow in closed channels. Fluid (water) flow in opened and closed channels is influenced by the condition of the container in which the fluid flows. One form of this influence is the occurrence of a condition which is generally known as flow loss. This condition is certainly undesirable because it will cause problems, technically the manifestation is a decrease in pressure including the speed of fluid flow. To find out the real conditions of flow losses, it is necessary t

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WEI, ZHIJIE, and DONGXIAO ZHANG. "COUPLED FLUID FLOW AND GEOMECHANICS IN COALBED METHANE RECOVERY STUDY." Modern Physics Letters B 24, no. 13 (2010): 1291–94. http://dx.doi.org/10.1142/s0217984910023451.

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In this paper, we present a coupled fluid flow and geomechanics model for simulating coalbed methane recovery. In the model, the fluid flow process is simulated with a triple porosity/dual permeability representation, and the coupling effects of effective stress and matrix swelling/shrinkage approach are simulated with a coupled fluid flow, geomechanics and gas adsorption/desorption model. The mathematical model is implemented with a fully implicit finite volume method and simulation is conducted to evaluate the effect of coupled fluid flow, geomechanics, and gas adsorption/desorption.

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