In the present article, the onset of convection in a horizontal layer of porous medium saturated by ananofluid is investigated analytically using linear and weakly nonlinear analysis. The model used for the nanofluid incorporates the effect of Brownian motion and thermophoresis. The effect of Raleigh-Darcy number, Lewis number, modified diffusivity ratio, on the stability of the system is investigated. Stationary and Oscillatory modes of convections has been studied. The linear stability analysis is based on normal mode technique, while then on linear theory is based on the truncated representation of Fourier series method. A weekly nonlinear analysis is used to obtain the concentration and thermal Nusselt number. The behavior of the concentration and thermal Nusselt number is investigated by solving the finite amplitude equations. Obtained results have been presented graphically and discussed in details.
Published in | American Journal of Applied Mathematics (Volume 5, Issue 1) |
DOI | 10.11648/j.ajam.20170501.11 |
Page(s) | 1-13 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
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Copyright © The Author(s), 2017. Published by Science Publishing Group |
Nanofluid, Porous Medium, Instability, Natural Convection
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APA Style
Jada Prathap Kumar, Jawali Channabasappa Umavathi, Channakeshava Murthy. (2017). Convective Transport of Nanofluid Saturated with Porous Layer. American Journal of Applied Mathematics, 5(1), 1-13. https://doi.org/10.11648/j.ajam.20170501.11
ACS Style
Jada Prathap Kumar; Jawali Channabasappa Umavathi; Channakeshava Murthy. Convective Transport of Nanofluid Saturated with Porous Layer. Am. J. Appl. Math. 2017, 5(1), 1-13. doi: 10.11648/j.ajam.20170501.11
AMA Style
Jada Prathap Kumar, Jawali Channabasappa Umavathi, Channakeshava Murthy. Convective Transport of Nanofluid Saturated with Porous Layer. Am J Appl Math. 2017;5(1):1-13. doi: 10.11648/j.ajam.20170501.11
@article{10.11648/j.ajam.20170501.11, author = {Jada Prathap Kumar and Jawali Channabasappa Umavathi and Channakeshava Murthy}, title = {Convective Transport of Nanofluid Saturated with Porous Layer}, journal = {American Journal of Applied Mathematics}, volume = {5}, number = {1}, pages = {1-13}, doi = {10.11648/j.ajam.20170501.11}, url = {https://doi.org/10.11648/j.ajam.20170501.11}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajam.20170501.11}, abstract = {In the present article, the onset of convection in a horizontal layer of porous medium saturated by ananofluid is investigated analytically using linear and weakly nonlinear analysis. The model used for the nanofluid incorporates the effect of Brownian motion and thermophoresis. The effect of Raleigh-Darcy number, Lewis number, modified diffusivity ratio, on the stability of the system is investigated. Stationary and Oscillatory modes of convections has been studied. The linear stability analysis is based on normal mode technique, while then on linear theory is based on the truncated representation of Fourier series method. A weekly nonlinear analysis is used to obtain the concentration and thermal Nusselt number. The behavior of the concentration and thermal Nusselt number is investigated by solving the finite amplitude equations. Obtained results have been presented graphically and discussed in details.}, year = {2017} }
TY - JOUR T1 - Convective Transport of Nanofluid Saturated with Porous Layer AU - Jada Prathap Kumar AU - Jawali Channabasappa Umavathi AU - Channakeshava Murthy Y1 - 2017/01/18 PY - 2017 N1 - https://doi.org/10.11648/j.ajam.20170501.11 DO - 10.11648/j.ajam.20170501.11 T2 - American Journal of Applied Mathematics JF - American Journal of Applied Mathematics JO - American Journal of Applied Mathematics SP - 1 EP - 13 PB - Science Publishing Group SN - 2330-006X UR - https://doi.org/10.11648/j.ajam.20170501.11 AB - In the present article, the onset of convection in a horizontal layer of porous medium saturated by ananofluid is investigated analytically using linear and weakly nonlinear analysis. The model used for the nanofluid incorporates the effect of Brownian motion and thermophoresis. The effect of Raleigh-Darcy number, Lewis number, modified diffusivity ratio, on the stability of the system is investigated. Stationary and Oscillatory modes of convections has been studied. The linear stability analysis is based on normal mode technique, while then on linear theory is based on the truncated representation of Fourier series method. A weekly nonlinear analysis is used to obtain the concentration and thermal Nusselt number. The behavior of the concentration and thermal Nusselt number is investigated by solving the finite amplitude equations. Obtained results have been presented graphically and discussed in details. VL - 5 IS - 1 ER -