Analysis of Transient Thermal Distribution in a Convective–Radiative Moving Rod Using Two-Dimensional Differential Transform Method with Multivariate Pade Approximant
| Autor: | Ravikumar Shashikala Varun Kumar, B. C. Prasannakumara, G. Sowmya, Ioannis E. Sarris, Chandra Sen Vishalakshi |
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| Rok vydání: | 2021 |
| Předmět: |
Physics
Partial differential equation Physics and Astronomy (miscellaneous) heat transfer moving rod internal heat generation differential transform method Differential equation General Mathematics Finite difference method Mechanics Chemistry (miscellaneous) Heat generation Heat transfer QA1-939 Computer Science (miscellaneous) Padé approximant Boundary value problem Mathematics Nucleate boiling |
| Zdroj: | Symmetry, Vol 13, Iss 1793, p 1793 (2021) Symmetry; Volume 13; Issue 10; Pages: 1793 |
| ISSN: | 2073-8994 |
| DOI: | 10.3390/sym13101793 |
| Popis: | The transient temperature distribution through a convective-radiative moving rod with temperature-dependent internal heat generation and non-linearly varying temperature-dependent thermal conductivity is elaborated in this investigation. Symmetries are intrinsic and fundamental features of the differential equations of mathematical physics. The governing energy equation subjected to corresponding initial and boundary conditions is non-dimensionalized into a non-linear partial differential equation (PDE) with the assistance of relevant non-dimensional terms. Then the resultant non-dimensionalized PDE is solved analytically using the two-dimensional differential transform method (2D DTM) and multivariate Pade approximant. The consequential impact of non-dimensional parameters such as heat generation, radiative, temperature ratio, and conductive parameters on dimensionless transient temperature profiles has been scrutinized through graphical elucidation. Furthermore, these graphs indicate the deviations in transient thermal profile for both finite difference method (FDM) and 2D DTM-multivariate Pade approximant by considering the forced convective and nucleate boiling heat transfer mode. The results reveal that the transient temperature profile of the moving rod upsurges with the change in time, and it improves for heat generation parameter. It enriches for the rise in the magnitude of Peclet number but drops significantly for greater values of the convective-radiative and convective-conductive parameters. |
| Databáze: | OpenAIRE |
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