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Thermal analysis of melting effect on Carreau fluid flow around a stretchable cylinder with quadratic radiation

Propulsion and Power Research 2024年第1期13卷 132-143页

作者： Lim Yeou Jiann ahmad qushairi mohamad Noraihan Afiqah Rawi Dennis Ling Chaun Ching Nor Athirah Mohd Zin Sharidan Shafie Faculty of Science Department of Mathematical SciencesUTM 81310SkudaiJohor BahruJohorMalaysia Fundamental and Applied Science Department UTP 32610PerakMalaysia Fakulti Sains Komputer&Matematik UiTM KedahSungai Petani 08400MerbokKedahMalaysia

The melting phenomenon plays a critical role in optimizing the performance of power storage, electronic cooling, and semiconductor devices. The present study aims to analyzethe melting effect on the flow of Carreau fluid over a stretchable cylinder, with special consideration given to the impact of quadratic thermal radiation. Similarity variables and the homotopy analysis method are used to simplify and determine the semi-analytical homotopicsolutions of the governing equations. The present findings reveal that the melting parameter increases the heat transfer rate by more than 10% for both fluids, water (Pr=0.71), and polymer(Pr=10). However, as the temperature ratio due to quadratic radiation increases, the localNusselt number for water has been reduced by 25%, and an even more substantial reductionis observed for the polymer. The present study offers valuable insights into achieving optimalefficiency in electronic devices.

关键词： Quadratic thermal radiation Melting heat transfer Carreaufluid Stretching cylinder Homotopy analysis

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Analysis of Magnetic Resistive Flow of Generalized Brinkman Type Nanofluid Containing Carbon Nanotubes with Ramped Heating

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Computers, Materials & Continua 2021年第4期67卷 1069-1084页

作者： Muhammad Saqib Ilyas Khan Sharidan Shafie ahmad qushairi mohamad El-Sayed M.Sherif Department of Mathematical Sciences Faculty of ScienceUniversiti Teknologi MalaysiaJohor Bahru81310Malaysia Faculty of Mathematics and Statistics Ton Duc Thang UniversityHo Chi Minh CityVietnam Center of Excellence for Research in Engineering Materials(CEREM) King Saud UniversityAl-Riyadh11421Saudi Arabia Department of Physical Chemistry Electrochemistry and Corrosion LaboratoryNational Research CentreCairo12622Egypt

In recent times,scientists and engineers have been most attracted to electrically conducted nanofluids due to their numerous applications in various fields of science and *** example,they are used in cancer treatment(hyperthermia),magnetic resonance imaging(MRI),drugdelivery,and magnetic refrigeration(MR).Bearing in mind the significance and importance of electrically conducted nanofluids,this article aims to study an electrically conducted water-based nanofluid containing carbon nanotubes(CNTs).CNTs are of two types,single-wall carbon nanotubes(SWCNTs)and multiple-wall carbon nanotubes(MWCNTs).The CNTs(SWCNTs and MWCNTs)have been dispersed in regular water as base fluid to form waterCNTs *** Brinkman Type nanofluid model is developed in terms of time-fractional *** ramped heating and sinusoidal oscillations conditions have been taken at the *** model has been solved for exact analytical solutions via the fractional Laplace transform *** exact solutions have been graphically studied to explore the physics of various pertinent flow parameters on velocity and temperature *** empirical results reveal that the temperature and velocity fields decreased with increasing values of fractional parameters due to variation in thermal and momentum boundary *** is also indicated that the isothermal velocity and temperature are higher than ramped velocity and temperature.

关键词： Nanofluid fractional derivatives Brinkman type fluid exact solutions

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