• VASAMSETTY D U MAHESHWARA RAO
• V MANI KUMAR

Now a days, fuel efficiency is the major problem in the automobile sector. The external parts of the automobile constitutes to more than 60% of the drag for which more amount of fuel is consumed in order to overtake the drag. The flow on the surface of skewed model steps is a practical problem in the design of automobile structures. Three different hatchback car structures are used for study to investigate the coefficient of drag on the surface.CFD analysis on the surface of 3 hatchback cars is studied. To optimized the coefficient of drag on baseline models add-on-devices such as tail plates and vortex generators are used. The modified car structures with these devices are compared with the original base line models and the optimized coefficient of drag is found

Aerodynamjc, Coefficient of drag, Vortex generators, tail plates, vortex generators with tail plates

"DESIGN AND MODAL ANALYSIS FOR AERODYNAMIC DRAG REDUCTION ON SURFACE OF AUTOMOBILE STRUCTURES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.90-93, June 2019, Available :http://www.jetir.org/papers/JETIR1907E13.pdf

"DESIGN AND MODAL ANALYSIS FOR AERODYNAMIC DRAG REDUCTION ON SURFACE OF AUTOMOBILE STRUCTURES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp90-93, June 2019, Available at : http://www.jetir.org/papers/JETIR1907E13.pdf