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Journal articles on the topic 'Magnetic field dependent viscosity'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Kresse, Thomas, Gerhard Martinek, Gerhard Schneider, and Dagmar Goll. "The Field-Dependent Magnetic Viscosity of FeNdB Permanent Magnets." Materials 17, no. 1 (2024): 243. http://dx.doi.org/10.3390/ma17010243.

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The time-dependent decrease of the magnetic polarization of magnet materials in the presence of an opposing field is well known as the magnetic viscosity or magnetic aftereffect. In previous studies, magnetic viscosity was usually measured in fields when in the vicinity of coercivity HcJ, and this was conducted in order to understand the coercivity mechanism in magnetic materials. In this study, the magnetic viscosity of commercial FeNdB magnets is determined at opposing fields weaker than HcJ and at different temperatures in the range from 303 to 433 K (i.e., from 30 to 160 °C) by means of a

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2

Nanjundappa, C. E., I. S. Shivakumara, and R. Arunkumar. "Bénard–Marangoni ferroconvection with magnetic field dependent viscosity." Journal of Magnetism and Magnetic Materials 322, no. 15 (2010): 2256–63. http://dx.doi.org/10.1016/j.jmmm.2010.02.021.

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3

Ram, Paras, Anupam Bhandari, and Kushal Sharma. "Effect of magnetic field-dependent viscosity on revolving ferrofluid." Journal of Magnetism and Magnetic Materials 322, no. 21 (2010): 3476–80. http://dx.doi.org/10.1016/j.jmmm.2010.06.048.

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4

Shah, Rehan Ali, Aamir Khan, and Amjad Ali. "Parametric analysis of magnetic field-dependent viscosity and advection–diffusion between rotating discs." Advanced Composites Letters 29 (January 1, 2020): 2633366X1989637. http://dx.doi.org/10.1177/2633366x19896373.

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The constitutive expressions of unsteady Newtonian fluid are employed in the mathematical formulation to model the flow between the circular space of porous and contracting discs. The flow behavior is investigated for magnetic field-dependent (MFD) viscosity and heat/mass transfers under the influence of a variable magnetic field. The equation for conservation of mass, modified Navier–Stokes, Maxwell, advection diffusion and transport equations are coupled as a system of ordinary differential equations. The expressions for torques and magnetohydrodynamic pressure gradient equation are derived.

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5

Hemalatha, R. "Study of magnetic field dependent viscosity on a soret driven ferrothermohaline convection in a rotating porous medium." International Journal of Applied Mechanics and Engineering 19, no. 1 (2014): 61–77. http://dx.doi.org/10.2478/ijame-2014-0006.

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Abstract The effect of a magnetic field dependent viscosity on a Soret driven ferro thermohaline convection in a rotating porous medium has been investigated using the linear stability analysis. The normal mode technique is applied. A wide range of values of the Soret parameter, magnetization parameter, the magnetic field dependent viscosity, Taylor number and the permeability of porous medium have been considered. A Brinkman model is used. Both stationary and oscillatory instabilities have been obtained. It is found that the system stabilizes only through oscillatory mode of instability. It i

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6

Bhandari, A. "Effect of Magnetic Field Dependent Viscosity on the Unsteady Ferrofluid Flow Due to a Rotating Disk." International Journal of Applied Mechanics and Engineering 25, no. 2 (2020): 22–39. http://dx.doi.org/10.2478/ijame-2020-0018.

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AbstractThe effect of magnetic field dependent viscosity on ferrofluid flow due to a rotating disk is studied in the presence of a stationary magnetic field. The results for velocity profiles for various values of MFD viscosity parameter are shown graphically. These results are compared with the ordinary case when the applied magnetic field is absent. Besides, the shear stress on the wall of the disk and its surface is calculated numerically.

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7

Kamis, Nur Ilyana, Noraihan Afiqah Rawi, Lim Yeou Jiann, and Sharidan Shafie. "Exploring Magnetic Field-Dependent Viscosity of Hybrid Ferrofluid on Elongated Surfaces." Defect and Diffusion Forum 440 (March 14, 2025): 47–53. https://doi.org/10.4028/p-s6p9se.

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Hybrid ferrofluid holds significant promise in medical applications and targeted drug de livery. An external magnetic field may alter the rheological properties of the ferrofluids. This study investigates the magnetic field-dependent viscosity (MFDV) in a hybrid ferrofluid composed of mag netite ferrite (Fe3O4) and cobalt ferrite (CoFe2O4) over an elongated surface, where a mixture of ethylene glycol and water serves as the conventional fluid. The influence of magnetohydrodynamics (MHD) is taken into account. The developed nonlinear governing equations are transformed into or dinary differenti

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Ahmmed, S. F., and M. S. A. Sarker. "MHD Natural Convection Flow of Fluid From a Vertical Flat Plate Considering Temperature Dependent Viscosity." Journal of Scientific Research 2, no. 3 (2010): 453. http://dx.doi.org/10.3329/jsr.v2i3.4776.

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A two-dimensional natural convection flow of a viscous incompressible and electrically conducting fluid past a vertical impermeable flat plate is considered in presence of a uniform transverse magnetic field. Here the viscosity is taken as dependent on temperature whereas the thermal conductivity is assumed constant. We also investigate the effect of magnetic field on the natural convection flow of a viscous incompressible and electrically conducting fluid. The effect of variable viscosity and magnetic field on local skin friction, the rate of heat transfer and the profiles for velocity as wel

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9

Prakash, Jyoti, Rajeev Kumar, and Kultaran Kumari. "Thermal Convection in a Ferromagnetic Fluid Layer with Magnetic Field Dependent Viscosity: A Correction Applied." Studia Geotechnica et Mechanica 39, no. 3 (2017): 39–46. http://dx.doi.org/10.1515/sgem-2017-0028.

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Abstract The effect of magnetic field dependent (MFD) viscosity on thermal convection in a horizontal ferromagnetic fluid layer has been investigated numerically. A correction is applied to Sunil et al. [24] which is very important in order to predict the correct behavior of MFD viscosity. Linear stability analysis has been carried out for stationary convection. The MFD viscosity parameter δ as well as the measure of nonlinearity of magnetization M3, both have a stabilizing effect on the system. Numerical results are also obtained for large values of magnetic parameter M1 and predicted graphic

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10

Prakash, Jyoti, Pankaj Kumar, Kultaran Kumari, and Shweta Manan. "Ferromagnetic Convection in a Densely Packed Porous Medium with Magnetic-Field-Dependent Viscosity – Revisited." Zeitschrift für Naturforschung A 73, no. 3 (2018): 181–89. http://dx.doi.org/10.1515/zna-2017-0215.

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AbstractThe effect of magnetic-field-dependent (MFD) viscosity on the thermal convection in a ferromagnetic fluid in the presence of a uniform vertical magnetic field is investigated for a fluid layer saturating a densely packed porous medium using the Darcy model. A correction is applied to the model by Sunil et al. [Z. Naturforsch. 59, 397 (2004)], which is very important to predict the correct behaviour of MFD viscosity. A linear stability analysis is carried out for stationary modes. The critical wave number and critical Rayleigh number for the onset of instability, for the case of free bo

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11

RAM, PARAS, and VIKAS KUMAR. "SWIRLING FLOW OF FIELD DEPENDENT VISCOUS FERROFLUID OVER A POROUS ROTATING DISK WITH HEAT TRANSFER." International Journal of Applied Mechanics 06, no. 04 (2014): 1450033. http://dx.doi.org/10.1142/s1758825114500331.

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The purpose of present study is to investigate the effects of field dependent viscosity on swirling flow of an incompressible electrically non-conducting ferrofluid over a porous rotating disk with suction and heat transfer at the wall. Karman's similarity transformations are used to convert the governing boundary layer equations involved in the problem to a system of nonlinear coupled differential equations. The solution of this system is obtained by using a second-order numerical scheme which combines the features of Finite Difference method and Newton's zero finding algorithms. The flow cha

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12

Prakash, R., G. Jayalatha, and G. N. Sekhar. "Effect of Throughflow on Marangoni Convection in Ferromagnetic Liquids with Variable Viscosity." ECS Transactions 107, no. 1 (2022): 19701–13. http://dx.doi.org/10.1149/10701.19701ecst.

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The effect of surface tension and vertical throughflow in magnetic field and temperature sensitive liquid of Newtonian ferromagnetic type is examined. Combining shooting and Galerkin techniques the stationary critical eigenvalues are computed. On the ferroconvection onset, M3, non-buoyancy magnetic parameter and Pr (>1), Prandtl number have no influence. For upward or downward directions dual effect of destabilizing or stabilizing the system is observed in the presence of vertical throughflow. Throughflow effect studied through Pe, Peclet number delays ferroconvection onset and is observed

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13

Arora, M., R. Singh, and M. K. Panda. "Effects of magnetic-field-dependent viscosity at onset of convection in magnetic nanofluids." Journal of Engineering Mathematics 101, no. 1 (2016): 201–17. http://dx.doi.org/10.1007/s10665-016-9855-9.

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14

Shree, Venkatesh Vidya, Chandrappa Rudresha, Chandrashekar Balaji, and Sokalingam Maruthamanikandan. "Effect of Magnetic Field Dependent Viscosity on Darcy-Brinkman Ferroconvection with Second Sound." East European Journal of Physics, no. 4 (December 6, 2022): 112–17. http://dx.doi.org/10.26565/2312-4334-2022-4-10.

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The problem of buoyancy-driven convection in a ferromagnetic fluid saturated porous medium with the Maxwell-Cattaneo law and MFD viscosity is investigated by the method of small perturbation. The fluid motion is described using the Brinkman model. It is assumed that the fluid and solid matrices are in local thermal equilibrium. For simplified boundary conditions, the eigenvalue problem is solved exactly, and closed form solutions for stationary instability are obtained. Magnetic forces and second sound were found to enhance the beginning of Brinkman ferroconvection. However, ferroconvection is

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15

Prakash, J., P. Kumar, S. Manan, and K. R. Sharma. "The Effect of Magnetic Field Dependent Viscosity on Ferromagnetic Convection in a Rotating Sparsely Distributed Porous Medium - Revisited." International Journal of Applied Mechanics and Engineering 25, no. 1 (2020): 142–58. http://dx.doi.org/10.2478/ijame-2020-0010.

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AbstractThe effect of magnetic field dependent (MFD) viscosity on the thermal convection in a ferrofluid layer saturating a sparsely distributed porous medium has been investigated by using the Darcy-Brinkman model in the simultaneous presence of a uniform vertical magnetic field and a uniform vertical rotation. A correction is applied to the study of Vaidyanathan et al. [11] which is very important in order to predict the correct behavior of MFD viscosity. A linear stability analysis has been carried out for stationary modes and oscillatory modes separately. The critical wave number and criti

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16

Kumar, Pardeep, and Sumit Gupta. "Hydromagnetic Instability of Two Viscoelastic Dusty-Fluids in Porous Medium." WSEAS TRANSACTIONS ON HEAT AND MASS TRANSFER 16 (September 20, 2021): 137–44. http://dx.doi.org/10.37394/232012.2021.16.16.

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An attempt has been made to investigate the instability of the plane interface between two viscoelastic superposed conducting fluids in the presence of suspended particles and variable horizontal magnetic field through porous medium is studied. The cases of two fluids of uniform densities, viscosities, magnetic fields, and suspended particles number densities separated by a horizontal boundary; and of exponentially varying density, viscosity, suspended particles number density, and magnetic field are considered. It is found that the stability criterion is independent of the effects of viscoela

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17

G. R., Meghashree, Asha C.S., Sumana Krishna Prasad, et al. "Study of magnetic field dependent viscosity and temperature on Jenkins model fluid flow over a rotating disk." Annals of Mathematics and Computer Science 25 (November 9, 2024): 33–53. http://dx.doi.org/10.56947/amcs.v25.359.

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The present work involves the study of ferrofluid flow over a stretchable rotating disk maintained at an uniform temperature in the presence of magnetic field dependent viscosity. The system is analyzed through the Jenkins model and the simplified governing equations are represented in the cylindrical co-ordinates. The obtained nonlinear coupled partial differential equations are reduced to a coupled nonlinear ordinary differential equations using the well known Von Karman transformation for rotating disk and solved numerically by the shooting method. The velocity profiles, pressure and temper

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18

Ho, Je Ee, Chen Lung Yen, and Jian Xun Lin. "Experimentally Investigate the Vortex Ferro-Viscosity under Directional Field." Key Engineering Materials 642 (April 2015): 115–19. http://dx.doi.org/10.4028/www.scientific.net/kem.642.115.

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In this study, apparent ferro-viscosity on applied directional field, through the evaluation of mean piping flow velocity, is examined. Here viscosity in magnetized ferro-flow is found to be closely dependent on the field intensity as well as direction, which is quite different from the constant thermal property usually used in traditional fluid dynamics problem. To predict ferro-magnetization and ferro-viscosity induced under horizontal and vertical field imposed , an auxiliary electromagnetic mechanism is then designed and set up ,As a result, the apparent viscosity ,for ferro-concentration

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19

Bharti, Pavan Kumar, Divya Sharma, and R. C. Sharma. "The Effect Of A Magnetic Field Dependent Viscosity On The Thermal Convection In A Ferromagnetic Fluid In A Porous Medium." Zeitschrift für Naturforschung A 59, no. 7-8 (2004): 397–406. http://dx.doi.org/10.1515/zna-2004-7-802.

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The effect of the magnetic field dependent (MFD) viscosity on the thermal convection in a ferromagnetic fluid in the presence of a uniform vertical magnetic field is considered for a fluid layer in a porous medium, heated from below. For a ferromagnetic fluid layer between two free boundaries an exact solution is obtained, using a linear stability analysis. For the case of stationary convection, the medium permeability has a destabilizing effect, whereas the MFD viscosity has a stabilizing effect. In the absence of MFD viscosity, the destabilizing effect of magnetization is depicted, but in it

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20

Ahmed, Tanjina N., Camila Belduque, Maggie Y. Chen, Jitendra S. Tate, and Wilhelmus J. Geerts. "Dynamic viscosity of strontium ferrite–nylon composite below the melting temperature." AIP Advances 12, no. 9 (2022): 095223. http://dx.doi.org/10.1063/5.0098972.

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Hard-magnetic 3D-printer filaments made of 40 wt. % SrO(Fe2O3)6/PA12 composites made using a twin-screw extruder are being studied to be used for Magnetic Field Assisted Additive Manufacturing (MFAAM). The time dependence of the magnetic properties above the softening temperature of the PA12 matrix but below the melting point was studied using a biaxial Vibrating Sample Magnetometer (VSM). Specifically, the rotation of the magnetic particles in the softened polymer matrix after the application of a rotation field was extracted from the time dependent biaxial VSM signals. Above 132 °C, the stro

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21

Sharma, R. C., and P. Kumar. "Hydromagnetic Stability of Two Rivlin-Ericksen Elastico-Viscous Superposed Conducting Fluids." Zeitschrift für Naturforschung A 52, no. 6-7 (1997): 528–32. http://dx.doi.org/10.1515/zna-1997-6-711.

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Abstract The stability of the plane interface separating two Rivlin-Ericksen elastico-viscous superposed fluids of uniform densities when the whole system is immersed in a uniform horizontal magnetic field has been studied. The stability analysis has been carried out, for mathematical simplicity, for two highly viscous fluids of equal kinematic viscosities and equal kinematic viscoelasticities. It is found that the stability criterion is independent of the effects of viscosity and viscoelasticity and is dependent on the orientation and magnitude of the magnetic field. The magnetic field is fou

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22

Ahmad, Sultan, Sanjay Kumar, and Naseem Ahmad. "Approximate solution of nonlinear coupled boundary value problem related to blood flow in artery using variational iteration method." Journal of Interdisciplinary Mathematics 28, no. 2 (2025): 669–76. https://doi.org/10.47974/jim-2110.

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This research examines blood flow dynamics within arteries under transverse magnetic field and temperature variations. A nonlinear singular coupled boundary value problem models blood flow. Using Variational Iteration Method (VIM), velocity and temperature profiles are analyzed. Assuming constant magnetic field, temperature-dependent fluid viscosity is considered. Flow and wall shear stress expressions are derived.

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23

Rundora, Lazarus. "Unsteady Magnetohydrodynamic Mixed Convective Flow of a Reactive Casson Fluid in a Vertical Channel Filled with a Porous Medium." Defect and Diffusion Forum 408 (April 2021): 33–49. http://dx.doi.org/10.4028/www.scientific.net/ddf.408.33.

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This article analyses the thermal decomposition in an unsteady MHD mixed convection flow of a reactive, electrically conducting Casson fluid within a vertical channel filled with a saturated porous medium and the influence of the temperature dependent properties on the flow. The fluid is assumed to be incompressible with the viscosity coefficient varying exponentially with temperature. The flow is subjected to an externally applied uniform magnetic field. The exothermic chemical kinetics inherent in the flow system give rise to heat dissipation. A technique based on a semi-discretization finit

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24

Attia, Hazem A. "Influence of temperature-dependent viscosity on the MHD Couette flow of dusty fluid with heat transfer." Differential Equations and Nonlinear Mechanics 2006 (2006): 1–14. http://dx.doi.org/10.1155/denm/2006/75290.

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This paper studies the effect of variable viscosity on the transient Couette flow of dusty fluid with heat transfer between parallel plates. The fluid is acted upon by a constant pressure gradient and an external uniform magnetic field is applied perpendicular to the plates. The parallel plates are assumed to be porous and subjected to a uniform suction from above and injection from below. The upper plate is moving with a uniform velocity while the lower is kept stationary. The governing nonlinear partial differential equations are solved numerically and some important effects for the variable

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25

RAM, PARAS, and VIKAS KUMAR. "FERROFLUID FLOW WITH MAGNETIC FIELD-DEPENDENT VISCOSITY DUE TO ROTATING DISK IN POROUS MEDIUM." International Journal of Applied Mechanics 04, no. 04 (2012): 1250041. http://dx.doi.org/10.1142/s175882511250041x.

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The present study is carried out to examine the effects of magnetic field-dependent viscosity on steady axi-symmetric ferrofluid flow due to rotating disk in porous medium. The momentum equations give rise to highly nonlinear partial differential equations, which are converted to a system of nonlinear coupled ordinary differential equations on using Karman's similarity transformation. Then a numerical technique, which is the combination of finite difference and shooting methods, is employed in MATLAB environment to get the numerical solution of the problem. Beside the velocity and pressure pro

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26

Vidya Shree, V., C. Rudresha, C. Balaji, and S. Maruthamanikandan. "Effect Of MFD Viscosity On Ferroconvection In A Fluid Saturated Porous Medium With Variable Gravity." Journal of Mines, Metals and Fuels 70, no. 3A (2022): 98. http://dx.doi.org/10.18311/jmmf/2022/30675.

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<p>Convective instability of a horizontal ferromagnetic fluid saturated porous layer with magnetic field dependent (MFD) viscosity subjected to gravity field varying with distance in the layer is investigated. The fluid motion is described by the Brinkman model. The method of small perturbation is applied and the resulting eigenvalue problem is solved using the higher order Galerkin technique. The stationary instability is shown to be the preferred mode of instability and the resulting eigenvalue problem is solved by taking into account the realistic rigidrigid- isothermal boundary condi

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27

Gollahalli Rajagopal, Meghashree, Asha Chikkasomanahalli Shivegowda, Sumana Krishna Prasad, Achala Laxmivenkatesh Nargund, and Mani Sankar. "Effect of Lorentz Force and Magnetic Viscosity on Shliomis Model Ferro Flow due to Rotating Disk." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 124, no. 2 (2024): 192–207. https://doi.org/10.37934/arfmts.124.2.192207.

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The present work involves the study of ferrofluid flow over a rotating disk analysed through Shliomis model in the presence of alternating magnetic field applied in the radial direction. Shliomos model is the appropriate model to analyse ferrofluid flows as it provides prominence to the particle’s movement in the fluid. Here the flow alters due to the viscosity dependent on applied magnetic field in the presence of Lorentz force. The governing equations leading to nonlinear partial differential equations are reduced to nonlinear ordinary differential equations using similarity transformation a

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28

KUMAR, Awneesh, Pankaj KUMAR, Abhishek THAKUR, and Mandeep KAUR. "Analysis of Convective Instability in Dusty Ferromagnetic Fluids with Magnetic Field-Dependent Viscosity Under Fluid-Permeable Magnetic Boundaries." Acta Mechanica et Automatica 19, no. 2 (2025): 327–36. https://doi.org/10.2478/ama-2025-0040.

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Abstract The subject under consideration finds manifold applications across various disciplines, including biological, industrial, and environmental sectors. Therefore, this study aims to analytically investigate the onset of convective instability in a dusty ferromagnetic fluid layer, influenced by magnetic field-dependent viscosity and fluid-permeable magnetically active boundaries, when subjected to a uniform transverse magnetic field. The eigenvalue problem is formulated through the utilization of linear stability theory followed by normal mode analysis. To address this problem, a single-t

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Ram, Paras, Vimal Kumar Joshi, Kushal Sharma, Mittu Walia, and Nisha Yadav. "Variable Viscosity Effects on Time Dependent Magnetic Nanofluid Flow past a Stretchable Rotating Plate." Open Physics 14, no. 1 (2016): 651–58. http://dx.doi.org/10.1515/phys-2016-0072.

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AbstractAn attempt has been made to describe the effects of geothermal viscosity with viscous dissipation on the three dimensional time dependent boundary layer flow of magnetic nanofluids due to a stretchable rotating plate in the presence of a porous medium. The modelled governing time dependent equations are transformed a from boundary value problem to an initial value problem, and thereafter solved by a fourth order Runge-Kutta method in MATLAB with a shooting technique for the initial guess. The influences of mixed temperature, depth dependent viscosity, and the rotation strength paramete

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30

Dogonchi, A. S., Muhammad Waqas, M. Mudassar Gulzar, M. Hashemi-Tilehnoee, Seyyed Masoud Seyyedi, and D. D. Ganji. "Simulation of Fe3O4-H2O nanoliquid in a triangular enclosure subjected to Cattaneo–Christov theory of heat conduction." International Journal of Numerical Methods for Heat & Fluid Flow 29, no. 11 (2019): 4430–44. http://dx.doi.org/10.1108/hff-01-2019-0031.

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Purpose The purpose of this research is to describe the importance of the Cattaneo–Christov theory of heat conduction in a triangular enclosure with a semi-circular heater. Analysis subjected to Fe3O4-H2O nanofluid is reported. Viscosity dependent on magnetic field is taken into consideration to simulate ferrofluid viscosity. Besides, heat generation and shape factor of nanoparticles are also considered. Design/methodology/approach The well-known control volume finite element method is used for simulations. Findings The outcomes reveal that the magnetic field can be introduced to the system as

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31

Sunil and Amit Mahajan. "A nonlinear stability analysis in a double-diffusive magnetized ferrofluid with magnetic-field-dependent viscosity saturating a porous medium." Canadian Journal of Physics 87, no. 6 (2009): 659–73. http://dx.doi.org/10.1139/p09-016.

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A rigorous nonlinear stability result is derived by introducing a suitable generalized energy functional for a magnetized ferrofluid layer heated and soluted from below with magnetic-field-dependent (MFD) viscosity saturating a porous medium, in the stress-free boundary case. The mathematical emphasis is on how to control the nonlinear terms caused by the magnetic-body and inertia forces. For ferrofluids, we find that there is possibility of existence of subcritical instabilities, however, it is noted that, in case of a non-ferrofluid, the global nonlinear stability Rayleigh number is exactly

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32

Agarwal, P. K., and Rajeev Jha. "Unsteady Flow of a Dusty Conducting Fluid through porous medium between Parallel Porous Plates with Temperature Dependent Viscosity and Thermal Radiation." International Journal of Advance Research and Innovation 2, no. 1 (2014): 16–24. http://dx.doi.org/10.51976/ijari.211403.

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The purpose of present problem is to studies of effects of variable viscosity and thermal radiation on unsteady laminar flow of dusty conducting fluid between parallel porous plates through porous medium with temperature dependent viscosity. The fluid is considered as unsteady laminar flow through porous medium and acted upon by a constant pressure gradient and an external uniform magnetic field is applied perpendicular to the plates. It is assumed that the parallel plates are porous and subjected to a uniform suction from above and injection from below. It is also considered the viscosity is

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33

Murugan, D., and R. Sekar. "An analytical study of linear stability analysis on Soret driven ferrothermohaline convection in a Darcy porous medium with MFD viscosity and coriolis force." Journal of Naval Architecture and Marine Engineering 19, no. 2 (2023): 83–96. https://doi.org/10.3329/jname.v19i2.40593.

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The effect of magnetic field dependent (MFD) viscosity on the onset of Soret driven convection in a ferromagnetic fluid layer heated from below and salted from above saturating rotating porous medium in the presence of vertical magnetic field is investigated theoretically by using Darcy model. The resulting eigenvalue problem is solved using the regular perturbation technique. Both stationary and oscillatory instabilities have been obtained. It is found that increase in MFD viscosity and increase in magnetic Rayleigh number is to delay the onset of ferroconvection, while the nonlinearity of fl

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34

Chillingo, Kidney Josiah. "FRACTAL FRACTIONAL MODEL OF RADIATIVE HEAT AND MASS TRANSFER CHARACTERISTICS OF TIME DEPENDENT FLOW WITH VARIABLE VISCOSITY, INDUCED MAGNETIC FIELD, DUFOUR AND SORET EFFECTS: AN ENTROPY GENERATION." international journal of advanced research in computer science 15, no. 2 (2024): 1–14. http://dx.doi.org/10.26483/ijarcs.v15i2.7069.

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: In this article, the Caputo Fabrizio fractal fractional order derivatives operator with an exponential kernel was employed to examine the radiative heat and mass transfer characteristics of time dependent flow with variable fluid viscosity, induced magnetic field, Soret and Dufour effects. The local mathematical model for the flow problem is formulated by take into account the impacts of thermal radiation, heat source, and viscous dissipation. The governing equations in-terms of fractal fractional model with an exponential kernel were solved numerically using finite difference method. The in

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35

Sunil, Anupama Sharma, Divya Sharma, and Pardeep Kumar. "EFFECT OF MAGNETIC FIELD–DEPENDENT VISCOSITY ON THERMAL CONVECTION IN A FERROMAGNETIC FLUID." Chemical Engineering Communications 195, no. 5 (2008): 571–83. http://dx.doi.org/10.1080/00986440701707719.

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36

Ramanathan, A., and G. Suresh. "Effect of magnetic field dependent viscosity and anisotropy of porous medium on ferroconvection." International Journal of Engineering Science 42, no. 3-4 (2004): 411–25. http://dx.doi.org/10.1016/s0020-7225(02)00273-2.

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37

Sunil, Poonam Sharma, and Amit Mahajan. "A nonlinear stability analysis for thermoconvective magnetized ferrofluid with magnetic field dependent viscosity." International Communications in Heat and Mass Transfer 35, no. 10 (2008): 1281–87. http://dx.doi.org/10.1016/j.icheatmasstransfer.2008.08.004.

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38

Sunil, Anupama, and R. C. Sharma. "The effect of magnetic field dependent viscosity on thermosolutal convection in ferromagnetic fluid." Applied Mathematics and Computation 163, no. 3 (2005): 1197–214. http://dx.doi.org/10.1016/j.amc.2004.06.006.

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39

G. R., Meghashree, Asha C. S., and Achala L. N. "Analysis of Jenkins Model Ferro Flow for Magnetic Field Dependent Viscosity with Porosity." International Journal of Pure and Applied Mathematical Sciences 16, no. 1 (2023): 71–86. http://dx.doi.org/10.37622/ijpams/16.1.2023.71-86.

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Mao, Runsong, Guang Zhang, Huixing Wang, and Jiong Wang. "Temperature-dependent dynamic properties of magnetorheological gel composite: experiment and modeling." Smart Materials and Structures 31, no. 3 (2022): 035002. http://dx.doi.org/10.1088/1361-665x/ac3b76.

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Abstract Of all the smart materials that can vary with a change in external excitation, magnetorheological gel (MRG) is one of the most pre-eminent composites, having controllable and reversible responses according to the magnitude of the external magnetic field. Temperature has been identified as another important driver that can alter the dynamic properties of a MRG, and so far this has not been studied systematically. The temperature-dependent dynamic properties of a MRG under different magnetic field strengths were investigated by three kinds of experiments—strain amplitude, frequency and

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Smari, Mourad, Monica Viorica Moisiuc, Mohammad Y. Al-Haik, et al. "Tunable Magnetic Heating in La0.51Sr0.49MnO3 and La0.51Dy0.045Sr0.445MnO3 Nanoparticles: Frequency- and Amplitude-Dependent Behavior." Nanomaterials 15, no. 9 (2025): 642. https://doi.org/10.3390/nano15090642.

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The use of perovskite manganite nanoparticles in magnetic hyperthermia has attracted significant attention due to their tunable magnetic properties and high specific absorption rate (SAR). In this work, we present a combined experimental and theoretical investigation of the frequency- and amplitude-dependent magnetic heating behavior of La0.51Sr0.49MnO3 (LSMO) and Dy-doped La0.51Dy0.045Sr0.445MnO3 (DLSMO) nanoparticles. The nanoparticles were synthesized via the sol–gel method and characterized by XRD and SEM, while SAR values were experimentally evaluated under varying magnetic field strength

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Kuiry, D. R., and S. Bahadur. "Steady MHD Flow of Viscous Fluid between Two Parallel Porous Plates with Heat Transfer in an Inclined Magnetic Field." Journal of Scientific Research 7, no. 3 (2015): 21–31. http://dx.doi.org/10.3329/jsr.v7i3.22574.

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The steady flow behavior of a viscous, incompressible and electrically conducting fluid between two parallel infinite insulated horizontal porous plates with heat transfer is investigated along with the effect of an external uniform transverse magnetic field, the action of inflow normal to the plates, the pressure gradient on the flow and temperature. The fluid viscosity is supposed to vary exponentially with the temperature. A numerical solution for the governing equations for both the momentum transfer and energy transfer has been developed using the finite difference method. The velocity an

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Sharma, Mahesh Kumar, and Amit Mahajan. "Thermomagnetic convection in a layer of magnetic nanofluid saturating porous medium with magnetic field dependent viscosity." International Journal of Nanoparticles 11, no. 3 (2019): 181. http://dx.doi.org/10.1504/ijnp.2019.10024298.

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Mahajan, Amit, and Mahesh Kumar Sharma. "Thermomagnetic convection in a layer of magnetic nanofluid saturating porous medium with magnetic field dependent viscosity." International Journal of Nanoparticles 11, no. 3 (2019): 181. http://dx.doi.org/10.1504/ijnp.2019.102586.

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Patidar, A. K., R. K. Pensia, and V. Shrivastava. "Effect of electron inertia on radiative instability of rotating two-component gaseous plasma." Canadian Journal of Physics 90, no. 12 (2012): 1209–21. http://dx.doi.org/10.1139/p2012-098.

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The problem of radiative instability of homogeneous rotating partially ionized plasma incorporating viscosity, porosity, and electron inertia in the presence of a magnetic field is investigated. A general dispersion relation is obtained using normal mode analysis with the help of relevant linearized perturbation equations of the problem. The modified Jeans criterion of instability is obtained. The conditions of Jeans instabilities are discussed in the different cases of interest. It is found that the simultaneous effect of viscosity, rotation, finite conductivity, and porosity of the medium do

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Zeeshan and Gul Mohammad Shaikh. "Analysis of temperature-dependent viscosity effect on wire coating using MHD flow of incompressible third-grade nanofluid filled in cylindrical coating die." Advances in Mechanical Engineering 14, no. 4 (2022): 168781322210891. http://dx.doi.org/10.1177/16878132221089173.

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The convective heat and mass propagation inside dies are used to determine the characteristics of coated wire products. As a result, comprehending the properties of polymerization mobility, heat mass transport, and wall stress concentration is crucial. The wire coating procedure necessitates an increase in thermal performance. As a result, this research aims to find out how floating nanoparticles affect the mass and heat transport mechanisms of third-grade fluid in the posttreatment for cable coating processes in presence of a magnetic field with time-dependent viscosity. For nanoﬂuids, the Bu

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Sekar, R., and K. Raju. "Effect of magnetic field dependent viscosity on Soret-driven ferrothermohaline convection saturating an anisotropic porous medium of sparse particle suspension." World Journal of Engineering 11, no. 3 (2014): 213–28. http://dx.doi.org/10.1260/1708-5284.11.3.213.

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Thermoconvective instability with Soret effect in multi-component fluids has wide range of applications in heat and mass transfer. This work deals with the theoretical investigation of the effect of magnetic field dependent (MFD) viscosity on Soret-driven ferrothermohaline convection heated and salted from below in an anisotropic porous medium subjected to a transverse uniform magnetic field. The resulting eigen value problem is solved using Brinkman model. An exact solution is obtained for the case of two free boundaries and the stationary and oscillatory instabilities are investigated by usi

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Xie, Lei, Young-Tai Choi, Chang-Rong Liao, Zhi Zeng, and Norman M. Wereley. "Synthesis and rheological characteristics of high viscosity linear polysiloxane carrier fluid-based magnetorheological fluids." Smart Materials and Structures 31, no. 1 (2021): 015041. http://dx.doi.org/10.1088/1361-665x/ac3da1.

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Abstract This study addresses the synthesis and field-dependent rheological characteristics of novel magnetorheological fluids (MRFs) using high viscosity linear polysiloxanes (HVLPs) as a carrier fluid. First of all, the components and preparation of novel HVLP-based MRFs (HVLP MRFs) were explained in detail and the microscopic images of each component were taken by using scanning electron microscope (SEM). Four HVLP MRF samples with different particle volume fractions of 10, 15, 20, and 26 vol% in the same HVLP carrier fluid viscosity of 800 Pa·s were synthesized to investigate the particle

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Inalu Obi, Boniface, and Frankline Chidi Eze. "Non-Newtonian Fluid Flow in an Incompressible Isothermal Cylindrical Pipe and Temperature-Dependent Viscosity." International Journal of Research and Scientific Innovation XI, no. X (2024): 74–81. http://dx.doi.org/10.51244/ijrsi.2024.11100010.

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This study centres on non-Newtonian fluid flow in an incompressible isothermal cylindrical pipe and temperature-dependent viscosity. The coupled nonlinear momentum and energy equations were solved using the regular perturbation technique Reynold’s model viscosity is introduced to account for the temperature-dependent viscosity, while the third grade fluid is accommodated to model the non-Newtonian fluid feature. Results show that the third grade and the magnetic field parameters have the tendency of reducing both the velocity of the fluid flow and can enhance the temperature of the cylindrical

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Pandit, Swapan K., Anirban Chattopadhyay, Rupchand Malo, and Krishno D. Goswami. "Thermogravitational Convection in a Multiple Baffled Enclosure Filled with Magneto-Hybrid Nanofluid Subjected to Magnetic Field Dependent Viscosity." Journal of Nanofluids 12, no. 7 (2023): 1698–719. http://dx.doi.org/10.1166/jon.2023.2051.

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This study explores the significant impacts of thin baffles and magnetic field dependent viscosity on magnetohydrodynamic (MHD) thermogravitational convection of Cu-Al2O3 (50%–50%) water hybrid nanoliquid in a cavity. Considering different arrangements of baffle sticks on both the vertical walls, four geometrical configurations (Case-I, Case-II, Case-III and Case-IV) have been analyzed. Numerical simulation has been performed for the governing Navier-Stokes (N-S) equations in streamfunction - vorticity form having energy equation. These coupled equations are solved by proposing a higher-order

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