• Deepti Arahunashi
• Vishal Siddaramappa Laxmeshwar
• Ravikumar Vitthal
• Deekshitha H L

The blended wing body (BWB) concept is a relatively new concept of an aircraft. In recent years there has emerged a significant increase of interest in design of blended wing body aircraft, specifically applied to large commercial transport aircraft. The wings and the fuselage blend into one integral structure greatly reduce drag and increases lift thus making it a highly efficient design. The BWB design has been proven to have significant improvements in aerodynamic efficiency as compared to the conventional wing fuselage design. In consideration of their lift and moment characteristics, NACA2418 and NACA0017 airfoils are selected. Centre of gravity will be placed ahead of aerodynamic centre to provide static and dynamic stability in pitch. In this project an attempt has been made to design a blended wing body using CATIA V5 and analyze it through CFD approach using 3D EXPERIENCE SOFTWARE by Dassult systems to analyze flow pattern. The results of CFD work is compared with the already available results of swept back wing. And the wooden model of BWB is made and tested for smoke flow visualization in low subsonic wind tunnel. The study is focused to find the aerodynamic efficiency (lift force to drag force ratio) by finding the lift and drag forces at different angle of attack. BWB is fuel efficient and environment friendly. Improving fuel efficiency is important for an environment as well as from economical perspective. BWB is fuel efficient and environment friendly. So the study is focused on increasing aerodynamic efficiency which will give fuel efficiency and environment friendly product.

"Aerodynamic design and analysis of small scale blended wing body", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.471-475, April-2019, Available :http://www.jetir.org/papers/JETIR1904M71.pdf

"Aerodynamic design and analysis of small scale blended wing body", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp471-475, April-2019, Available at : http://www.jetir.org/papers/JETIR1904M71.pdf