Chaotic convection on a nanofluids with feedback control variations

This study focuses on the nonlinear stability analysis of nanofluid thermal conductivity and the chaotic convection of feedback control variation. This system of fluid layer addresses external influences on feedback control, gravity, and temperature. The Galerkin method is used to solve a nonlinear...

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Bibliographic Details
Published in:Numerical heat transfer. Part B, Fundamentals Fundamentals, 2024-02, Vol.ahead-of-print (ahead-of-print), p.1-14
Main Author: Alhussain, Ziyad A.
Format: Article
Language:English
Subjects:
Aluminum oxide
Chaos theory
Chaotic convection
Control systems
Convection
Cooling systems
Copper
Feedback control
Galerkin method
Heat transfer
Lorenz equations
Lorenz system
Medical science
Microbiology
Nanofluids
Nonlinear systems
Stability analysis
Thermal conductivity
Titanium dioxide
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Summary:This study focuses on the nonlinear stability analysis of nanofluid thermal conductivity and the chaotic convection of feedback control variation. This system of fluid layer addresses external influences on feedback control, gravity, and temperature. The Galerkin method is used to solve a nonlinear system of three-dimensional Lorenz equations. Here we considered a time series analysis idea to combine feedback and nanofluids on the route from stable to chaotic solutions. These studies have been directed at Titanium dioxide (TiO 2 ), Aluminum trioxide (Al 2 O 3 ), Silver (Ag), and Copper (Cu) nanofluids. Feedback control is mainly emphasized in regulating heat transfer phenomena. This phenomenon is more widely used in engineering, medical sciences, microbiology, and medicine. It has been found that the chaotic behavior of nanofluid convection has a dwelling /delay that can be detected when feedback control changes. The results show that the feedback control has cooling system, which controls the chaotic phase of nanofluid conduction.
ISSN:1040-7790
1521-0626
DOI:10.1080/10407790.2023.2231144