Investigation of the Drop Tank Influence on Range and Optimization of Its Geometry

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Nasiri Khansari, Mohamad Tagi | 2013

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 45611 (08)
University: Sharif University of Technology
Department: Mechanical Engineering
Advisor(s): Durali, Mohamad
Abstract:
This project focuses on the design of fuel drop tanks for airplanes that add minimal drag and positive lift to the flying object. This will obviously effect the stability and dynamic performance of the airplane. To reduce adverse dynamic effects the tank was divided to several segment with a special emptying sequence. The add-on tank has to have no interference with the object existing systems and require minimum structural changes in the object. Several designs were proposed and the one gaining highest marks was selected. The flow field and the dynamic behavior of combined vehicle and drop tanks were studied using FE simulations. The result shows that adding a drop tank with optimized shape can lead to a better fuel efficiency compared to the original airplane.
Keywords:
Optimization ; Dynamic Simulation ; Range ; Drop Tank

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