• Parth Raut
• Pratik Satale
• Sushan Karale
• Tejas Walhekar
• Nikhil Gangamkote

This study presents a Computational Fluid Dynamics (CFD) analysis aimed at evaluating the roll effect on a glide bomb equipped with rear baffle fins during transonic flight. The simulation was performed at Mach 1.0 and zero-degree angle of attack to represent a symmetric, trimmed glide condition. A three-dimensional CAD model of the glide bomb, including fixed baffle fins at the aft section, was analyzed in ANSYS Fluent using a pressure-based solver and the realizable k-ε turbulence model. Pathline visualizations and velocity contour data were used to examine flow asymmetries, pressure distribution, and wake behavior around the fin-body junction. The results revealed localized disturbances and asymmetric flow separation near the baffle fins, indicating the presence of small rolling moments despite the symmetric flight setup. These findings highlight the aerodynamic influence of rear fin configurations on roll dynamics and stability in glide munitions. The study provides foundational insights for future design optimization of control surfaces to improve the precision and roll control of glide bombs under high-speed, unpowered flight conditions.

Computational Fluid Dynamics (CFD), Glide Bomb, Baffle Fins, Roll Effect, Mach 1, Transonic Flow, ANSYS Fluent, Aerodynamic Stability, Pressure Distribution, Flow Asymmetry

"Cfd Analysis on Roll Effect of a Glide Bomb With Aft Baffle Fins", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 7, page no.d496-d502, July-2025, Available :http://www.jetir.org/papers/JETIR2507357.pdf

"Cfd Analysis on Roll Effect of a Glide Bomb With Aft Baffle Fins", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 7, page no. ppd496-d502, July-2025, Available at : http://www.jetir.org/papers/JETIR2507357.pdf