The effect of fuselage cross-sectional shape on strenght and drag for a short-haul air-craft

Abstract

Aviation, which has a history of more than two thousand years, starts with a simple kite. Now in the 21st century, aircraft containing millions of parts are being developed causing a lot of emissions which have the main contributor as the fuel consumption. The aerospace industry goes out to find different solutions to reduce emissions of greenhouse gases from aircraft, which has led to the implementation of new power sources like electricity, liquid hydrogen, and sustainable aviation fuel (SAF). Using electric motors has also a cost advantage which reduces maintenance costs by 90 percent compared to turboprops, and most importantly, the cost of the energy of the engines goes down by 50-75 percent [1]. In this master thesis, the efficiency study of the airframes of 2+1 seat configuration for the short-haul commercial airliner was performed by finite element methods under the specified pressure force. The displacement, stress, weight, and drag results of four main cross-sections of the center fuselage were compared to identify the most effective cross-section.