Stagnation Point Flow of a Hybrid Nanofluid Under the Gravity Modulation Effect

Authors

  • Mohamad Hidayad Ahmad Kamal Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor Darul Takzim, Malaysia
  • Anati Ali Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor Darul Takzim, Malaysia
  • Lim Yeou Jiann Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor Darul Takzim, Malaysia
  • Noraihan Afiqah Rawi Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor Darul Takzim, Malaysia
  • Sharidan Shafie Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor Darul Takzim, Malaysia

DOI:

https://doi.org/10.37934/arfmts.92.2.157170

Keywords:

hybrid nanofluid, stagnation point flow, g-jitter

Abstract

The effectiveness of the heat transfer fluid in the cooling or heating process determines the optimal performance of the nuclear reactor, microelectronic devices, and chip production. Since thermal conductivity improved in hybrid nanofluids, the current study sought to investigate the unsteady free convection hybrid nanofluid flow near a stagnation point as influenced by g-jitter. A hybrid nanofluid consisted of copper (Cu) and alumina (Al2O3) nanoparticles, which were added into water to form Cu-Al2O3/water was considered. Next, relevant variables transformed the governing equation into dimensionless equations before being solved numerically using a centered implicit finite difference method. The fluid field and heat transfer were discussed concerning the stagnation point curvature ratio. The results showed that the g-jitter effect caused fluctuation in all profiles and physical quantities. The frequency and amplitude of the g-jitter reduced the velocity profile while improving the temperature distribution. The heat transfer rate increased by 10.77% when the hybrid nanoparticles volume fractions rose from 0.1 to 0.2. However, the presence of hybrid nanoparticles had reduced the thickness of the momentum boundary layer due to an increase in the local skin friction.

Author Biographies

Mohamad Hidayad Ahmad Kamal, Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor Darul Takzim, Malaysia

mohamadhidayadahmadkamal@gmail.com

Anati Ali, Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor Darul Takzim, Malaysia

anati@utm.my

Lim Yeou Jiann, Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor Darul Takzim, Malaysia

jiann@utm.my

Noraihan Afiqah Rawi, Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor Darul Takzim, Malaysia

noraihanafiqah@utm.my

Sharidan Shafie, Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor Darul Takzim, Malaysia

sharidan@utm.my

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Published

2022-02-23

How to Cite

Mohamad Hidayad Ahmad Kamal, Anati Ali, Lim Yeou Jiann, Noraihan Afiqah Rawi, & Sharidan Shafie. (2022). Stagnation Point Flow of a Hybrid Nanofluid Under the Gravity Modulation Effect. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 92(2), 157–170. https://doi.org/10.37934/arfmts.92.2.157170

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