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- Title
Thermal and sensitivity analysis on hydromagnetic CuO-Ag-H<sub>2</sub>O nanofluid radiative flow over an elongating convective thermal surface: RSM-CCD model.
- Authors
Reddy, Ch. Achi; Thumma, Thirupathi; Goud, J. Suresh; Panda, Subhajit
- Abstract
Nanometre scale dispersion of materials in low thermally conductive fluids to enhance their thermal performance for important applications in thermal and cooling systems. To protect the vehicle engine from overheating, heat exchangers in solar cells, lubricating liquid for cooling the piston, head gasket, and water pump, drug delivery to the sensitive parts of the human body, and processor cooling in electronic gadgets are prominent applications of hybrid nanofluids. Therefore, the objective of the current investigation is to optimize the heat transfer rate and perform the sensitivity analysis towards the independent factors on the slip flow. An electrically conducting, CuO-Ag-water MHD hybrid nanofluid stream with a volume fraction less than 2% over a stretching convective thermal surface is considered. After simplifying the PDEs using suitable similarity transformations to a set of ODEs, the mathematical model is solved numerically with the Runge–Kutta method and shooting technique. Graphical representations and tabular displays of the influence of the appropriate parameters on the convective surface are provided. The major findings demonstrate that the heat source, radiative heat flux, and convective temperature at the surface all contribute to the enhancement of thermal energy, while the transverse magnetic field, the inclination angle ( γ : 0 → π / 2 ), and the slippery surface all play a role in regulating the flow. Utilizing the RSM and basing it on the CCD model allows one to derive the heat transport rate as a response function for the input factors of radiation, heat source, and thermal Biot number parameters. The R-squared and adjusted R-Squared are obtained as 99.77% and 99.57%, respectively. Towards the thermal Biot number, the transportation of temperature has the uppermost sensitivity value of 0.264770, and the lowermost sensitivity value of − 0.101590 of heat transport towards the heat source is observed. The numerical findings that were produced are verified by taking into consideration the results that were identified in the literature, and it was discovered that there is an adequate correlation between them.
- Subjects
NANOFLUIDS; RADIATIVE flow; CONVECTIVE flow; SENSITIVITY analysis; THERMAL analysis; HEAT flux; HEAT exchangers
- Publication
Journal of Thermal Analysis & Calorimetry, 2023, Vol 148, Issue 21, p12195
- ISSN
1388-6150
- Publication type
Article
- DOI
10.1007/s10973-023-12528-z