Browsing by Author "Awodunmila, Ayobami Jeremiah"
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Item Numerical Investigation of Turbulent Convective Heat Transfer of Distilled Water Flowing in Corrugated Converging Pipes(Ajayi Crowther Journal of Pure and Applied Sciences, 2026-03-17) Fasiku, Taiwo Bukola; Amosun, Adebimpe Amos; Awodunmila, Ayobami JeremiahThis study examined the turbulent heat transfer performance, the Poiseuille number, and the performance evaluation criterion (PEC) of distilled water flowing in corrugated converging pipes. It systematically investigated the effects of the amplitude of the corrugation (0.02 โค ๐โ๐ท โค 0.03) and the Reynolds number (0.5 ร 104 โค ๐ ๐ โค 4.0 ร 104) on both thermal and flow fields. The governing equations and boundary conditions were numerically solved using the Shear Stress Transport (SST) turbulence model. The results indicated that as the corrugation amplitude increased, the average Nusselt number (๐๐ข), the normalised average Nusselt number (๐๐ข๐บ), the Poiseuille number (๐๐ ๐), the normalised Poiseuille number (๐๐ ๐๐บ), and PEC increased. At ๐ ๐ = 4.0 ร 104, ๐ท๐ = 1.2, ๐ค ๐ท = 0.2 and ๐ ๐ท = (0.02, 0.025 & 0.03), the average Nusselt numbers were 348.48, 360.69 and 368.78, respectively. The corresponding ๐๐ ๐ values were 4407.89, 4502.67, and 4571.15, respectively. The ๐๐ข๐บ values at ๐ ๐ = 1.5 ร 104 for ๐โ๐ท = 0.02, 0.025 & 0.03 were 1.36, 1.46 and 1.52, respectively. The ๐๐ ๐๐บ values at ๐ ๐ = 3.0 ร 104 for ๐โ๐ท (0.02, 0.025, and 0.03) were 3.16, 3.22 and 3.27, respectively. The corrugated converging pipe enhanced ๐๐ข compared with a smooth pipe for all the pipe configurations considered, as revealed by ๐๐ข๐บ > 1.Item The influence of corrugation amplitude on entropy production of turbulent flow in outward corrugated converging pipes(Discovery, 2026-03-18) Fasiku, Taiwo Bukola; Awodunmila, Ayobami JeremiahThis study investigated the entropy production rate of turbulent distilled water flowing through three corrugated converging pipes of various corrugation amplitudes. The impact of the corrugation amplitude (0.02 โค ๐โ๐ท โค 0.03) and Reynolds number (0.5 ร 104 โค ๐ ๐ โค 4.0 ร 104) on entropy production rate (EPR) and Bejan number were examined. The finite volume method was utilised to solve the governing equations and the turbulent model (SST ๐ โ ๐ model), taking into account the boundary conditions stated in the ANSYS Fluent. The findings showed that increasing the corrugation amplitude and Reynolds number reduces the thermal entropy production rate, ๐๐กโ๐๐, compared to a straight pipe. On the contrary, as the aforementioned parameters increase the viscous entropy production, ๐๐ฃ๐๐ ๐, increases. Therefore, using corrugated converging pipe with enhance corrugation amplitude reduces the entropy production rate compared to a straight pipe.