Comparative analysis for the flow in a S-shaped diffuser using standard k-ε, realizable k-ε, and renormalized k-ε for different composite materials.

Abstract The existing examine is supposed approximately the performance traits of S-Shaped diffusers were explored using Computational Fluid Dynamics (CFD) for Glass fiber reinforced polymer (GFRP), carbon fiber reinforced polymer (CFRP), Perspex (PMMA), and Kevlar reinforced polymer (KFRP). The traits were finished for turning angle 62.5 0 /62.5 0 for consistent round centerline length 600 mm, area ratio (AR) 2, 4, and 6 accordingly, and aspect ratio 2.0 on the intake. Incompressible drift evaluation using renormalized group k-ε model, standard k-ε, and realizable k-ε model. It has been discovered that the total C P value will rise, flow separation will increase, and flow homogeneity on the exit will decrease by way of growing area ratio for Carbon Fiber Reinforced Polymer (CFRP). It is found that for an area ratio 2 and 6 the existing version offers the high-quality performance in terms of C L and C P respectively for Carbon Fiber Reinforced Polymer (CFRP). Overall, CFRP is ideal for high-performance applications (e.g., aerospace, motorsports) despite its cost, while Perspex is suitable for non-critical, cost-sensitive uses. GFRP and KFRP fill the middle ground, offering decent performance at moderate costs.