Optimization of Laminar Flow in Non-Circular Ducts: A Comprehensive CFD Analysis

Journal Title: Journal of Sustainability for Energy - Year 2023, Vol 2, Issue 4

Abstract

This study presents a detailed Computational fluid dynamics (CFD) analysis, focusing on optimizing laminar flow within non-circular ducts, specifically those with square, rectangular, and triangular configurations. The study centers on the effective use of mesh quality and size in these ducts, a factor which is previously underrepresented in those CFD studies that predominantly emphasized turbulent rather than laminar flows. With the help of finite element approach, this study compares the performance of these non-circular ducts, employing Reynolds numbers ranging from 1600 to 2000 and mesh sizes of 6, 12, and 18 mm. A ribbed duct style, arranged in a hybrid manner, is adopted to further this study. Analysis in this paper applied the Single predictive optimization (SPO) technique to the identification of the K- -Standard as the preferred viscosity model and a hybrid rib distribution as optimal within the triangular duct configuration. Parameters of a Reynolds number of 1600 and a mesh size of 18 mm emerged as the most effective values for this duct style. Then, the attained results of the Analysis of variance (ANOVA) indicated the F-Criterion's insignificance for Reynolds laminar levels, rendering the laminar viscosity model less relevant within the test section. Additionally, the implementation of the Six sigma procedure (SSP) markedly enhanced both the performance factor (PF) and turbulence intensity, which were observed at 4.90% and 146.77%, respectively. This improvement was most notable in the triangular duct, characterized by rib heights of 66 mm (semi-circle), 66 mm (rectangular), and 38.126 mm (triangular).

Authors and Affiliations

Mohammed Hadi Hameed, Hafidh Hassan Mohammed, Mohammed Abdulridha Abbas

Keywords

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  • EP ID EP732278
  • DOI https://doi.org/10.56578/jse020402
  • Views 43
  • Downloads 0

How To Cite

Mohammed Hadi Hameed, Hafidh Hassan Mohammed, Mohammed Abdulridha Abbas (2023). Optimization of Laminar Flow in Non-Circular Ducts: A Comprehensive CFD Analysis. Journal of Sustainability for Energy, 2(4), -. https://europub.co.uk./articles/-A-732278