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Relevant bibliographies by topics / Ferroconvection

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Academic literature on the topic 'Ferroconvection'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Ferroconvection"

1

Ravisha, M., I. S. Shivakumara, and Gangadhara Reddy R. "Brinkman ferroconvection." Multidiscipline Modeling in Materials and Structures 13, no. 3 (2017): 366–76. http://dx.doi.org/10.1108/mmms-06-2017-0043.

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Purpose The simultaneous effects of local thermal non-equilibrium (LTNE) and vertical heterogeneity in permeability on the onset of ferromagnetic convection in a Brinkman porous medium are analyzed in the presence of a uniform vertical magnetic field. The eigenvalue problem is solved numerically using shooting method for isothermal rigid-ferromagnetic boundaries for various forms of vertically stratified permeability function Γ(z). The effect of vertically stratified permeability is found to either hasten or delay the onset of ferromagnetic convection. The deviation in the critical Rayleigh nu

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Kavyashree, Kavyashree, Rudrappa Arunkumar, Subramanya Raghavendra, Bhaskar Chola, and Mohammed Fareeduddin. "Effect of Variable Gravity and Internal Heat Source Strength on Marangoni-Benard Ferroconvection in a Saturated Porous Medium." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 132, no. 1 (2025): 102–13. https://doi.org/10.37934/arfmts.132.1.102113.

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The effect of gravity modulation via internal heating on the onset of Marangoni-Bénard ferroconvection in MNFs in a saturated porous medium is investigated theoretically. The upper boundary, which is free, considered flat and undeformable, and the lower boundary is assumed to be rigid. Upper and lower boundaries are protected perfectly to temperature perturbations. The higher-order Galerkin approach is used to derive the crucial stability parameters quantitatively. It is inferred that the internal heat source strength and gravity modulation have considerable influence on the onset of ferroconv

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3

M., Ravisha, I. S. Shivakumara, and Mamatha A.L. "Cattaneo–LTNE porous ferroconvection." Multidiscipline Modeling in Materials and Structures 15, no. 4 (2019): 779–99. http://dx.doi.org/10.1108/mmms-11-2018-0189.

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Purpose The onset of convection in a ferrofluid-saturated porous layer has been investigated using a local thermal nonequilibrium (LTNE) model by allowing the solid phase to transfer heat via a Cattaneo heat flux theory while the fluid phase to transfer heat via usual Fourier heat-transfer law. The flow in the porous medium is governed by modified Brinkman-extended Darcy model. The instability of the system is discussed exactly for stress-free boundaries, while for rigid-ferromagnetic/paramagnetic boundaries the results are obtained numerically using the Galerkin method. The presence of Cattan

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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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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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Ahmed, Naseer, and S. Maruthamanikandan. "Oscillatory Maxwell-Cattaneo Ferroconvection in a Densely Packed Rotating Porous Medium Saturated with a Viscoelastic Magnetic Fluid." East European Journal of Physics, no. 2 (June 1, 2024): 150–60. http://dx.doi.org/10.26565/2312-4334-2024-2-14.

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The combined effect of second sound and the viscoelasticity is examined using the classical stability analysis on the onset of rotating porous medium ferroconvection. Local thermal equilibrium is assumed between the solid matrix and fluid. Present problem is examined by an analytical approach by considering the pertinent boundary conditions. Normal mode analysis technique is utilized for obtaining the critical values for both instabilities namely stationary and oscillatory. We noticed that the oscillatory mode of instability is favored over the stationary mode of instability. We found that mag

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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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Ahmed, Naseer, S. Maruthamanikandan, and B. R. Nagasmitha. "Oscillatory Porous Medium Ferroconvection in a Viscoelastic Magnetic Fluid with Non-Classical Heat Conduction." East European Journal of Physics, no. 2 (June 2, 2023): 296–309. http://dx.doi.org/10.26565/2312-4334-2023-2-34.

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The classical stability analysis is used to examine the combined effect of viscoelasticity and the second sound on the onset of porous medium ferroconvection. The fluid and solid matrix are assumed to be in local thermal equilibrium. Considering the boundary conditions appropriate for an analytical approach, the critical values pertaining to both stationary and oscillatory instabilities are obtained by means of the normal mode analysis. It is observed that the oscillatory mode of instability is preferred to the stationary mode of instability. It is shown that the oscillatory porous medium ferr

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MOKHTAR, NOR FADZILLAH MOHD, and NORIHAN MD ARIFIN. "BÉNARD-MARANGONI FERROCONVECTION WITH FEEDBACK CONTROL." International Journal of Modern Physics: Conference Series 09 (January 2012): 552–59. http://dx.doi.org/10.1142/s201019451200565x.

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The effect of feedback control on the onset of Bénard-Marangoni ferroconvection in a horizontal ferrofluid layer heated from below is investigated theoretically. The lower boundary is rigid and the upper free boundary is assumed to be flat and undeformable. A linear stability analysis is used and the Galerkin method is employed to find the critical stability parameters numerically. It is found that the onset of instability can be delayed through the use of feedback control.

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Nanjundappa, C. E., M. Ravisha, Jinho Lee, and I. S. Shivakumara. "Penetrative ferroconvection in a porous layer." Acta Mechanica 216, no. 1-4 (2010): 243–57. http://dx.doi.org/10.1007/s00707-010-0367-9.

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Book chapters on the topic "Ferroconvection"

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Thomas, Nisha Mary, and S. Maruthamanikandan. "Chemical Reaction-Driven Ferroconvection in a Porous Medium." In Advances in Fluid Dynamics. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4308-1_28.

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Kiran, S., Y. H. Gangadharaiah, H. Nagarathnamma, and R. Padmavathi. "Effects of Variable Gravity Field on the Onset of Ferroconvection in an Anisotropic Porous Layer." In Emerging Research in Computing, Information, Communication and Applications. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-1342-5_67.

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Conference papers on the topic "Ferroconvection"

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Suprabha, R., C. R. Mahesha, and C. E. Nanjundappa. "Internally heated penetrative Bénard-Marangoni ferroconvection: Effect of MFD viscosity." In Third International Conference on Material Science, Smart Structures and Applications: (ICMSS 2020). AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0039846.

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Nanjundappa, C. E., and H. N. Prakash. "The Onset of Brinkman-Benard Ferroconvection in a Saturated Porous Layer With Internal Heat Generation." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-40039.

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The effect of internal heat generation on the criterion for the onset of thermomagnetic convection in a horizontal ferrofluid saturated porous layer in the presence of a uniform magnetic field is studied using the Brinkman-Lapwood extended Darcy flow model with fluid viscosity different from effective viscosity. The lower boundary is taken to be rigid – insulating and the upper surface is free and subject to the general thermal condition. The resulting eigenvalue problem is solved numerically using the Galerkin method with the Rayleigh number as the eigenvalue. The effect of increase in the va

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