This semester has been really busy. My favorite class is EGR 200. In this class, we learn how to work with CATIA and complete the conceptual designing of an aircraft. Prof. Helbling made this class very interesting. CATIA is Windows-based and thus it generally has a steep learning curve and everyone feels at ease after a couple of weeks. We ended our CATIA classes by developing a rough scaled model of our conceptually designed aircraft. Figure 1 shows the aircraft.
Figure 1: Rough scaled model of Dassault Falcon 50
The aircraft that our team build was an improved version of the Dassault (R) Falcon 50. We added winglets to it and did some preliminary calculations to find its effect on our range, lift-drag ratio and various other calculations. The team came up with an 8% increase in range just because of the addition of winglets at its cruising speed of 0.8 Mach. We also improved our lift/drag ratio by incorporating a better lift producing airfoil. The team then built a scaled and as-accurate-as-it gets model in CATIA and then used the 3-D Printer present in the AxFab Building to build a 3-d Model of our aircraft which would be tested in the wind tunnel. The following figure shows the 3D model.
At AOA of 2 degrees, observe the neatly attached flow on the wing sections.