A stability analysis on mixed convection boundary layer flow along a permeable vertical cylinder in a porous medium filled with a nanofluid and thermal radiation

Shahirah Abu Bakar, Norihan Md Arifin, Fadzilah Md Ali, Norfifah Bachok, Roslinda Mohd. Nazar, Ioan Pop

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A study on mixed convection boundary layer flow with thermal radiation and nanofluid over a permeable vertical cylinder lodged in a porous medium is performed in this current research by considering groupings of a variety nanoparticles, consisting of copper (Cu), aluminium (Al2O3) and titanium (TiO2). By using a method of similarity transformation, a governing set of ordinary differential equations has been reduced from the governing system of nonlinear partial differential equations, which are the values of selected parameters such as mixed convection parameter λ, nanoparticle volume fraction ϕ, radiation parameter Rd, suction parameter S, and curvature parameter ζ are solved numerically. From the numerical results, we observed that the involving of certain parameters ranges lead to the two different branches of solutions. We then performed a stability analysis by a bvp4c function (boundary value problem with fourth-order accuracy) to determine the most stable solution between these dual branches and the respective solutions. The features have been discussed in detail.

Original languageEnglish
Article number483
JournalApplied Sciences (Switzerland)
Volume8
Issue number4
DOIs
Publication statusPublished - 23 Mar 2018

Fingerprint

Mixed convection
boundary layer flow
Boundary layer flow
Heat radiation
thermal radiation
Porous materials
convection
Nanoparticles
Convergence of numerical methods
radiation
Titanium
Aluminum
Ordinary differential equations
Boundary value problems
Partial differential equations
Copper
Volume fraction
Radiation
nanoparticles
suction

Keywords

  • Cylinder
  • Mixed convection
  • Nanofluid
  • Porous medium
  • Stability analysis
  • Thermal radiation

ASJC Scopus subject areas

  • Materials Science(all)
  • Instrumentation
  • Engineering(all)
  • Process Chemistry and Technology
  • Computer Science Applications
  • Fluid Flow and Transfer Processes

Cite this

A stability analysis on mixed convection boundary layer flow along a permeable vertical cylinder in a porous medium filled with a nanofluid and thermal radiation. / Bakar, Shahirah Abu; Arifin, Norihan Md; Ali, Fadzilah Md; Bachok, Norfifah; Mohd. Nazar, Roslinda; Pop, Ioan.

In: Applied Sciences (Switzerland), Vol. 8, No. 4, 483, 23.03.2018.

Research output: Contribution to journalArticle

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AU - Bachok, Norfifah

AU - Mohd. Nazar, Roslinda

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