However, the influence by the difference of the planform was not investigated. These studies could find optimum results for a planform. In reference, the multi-disciplinary design which was considered the interaction between the aerodynamics and the structure by an evolutionary algorithm was discussed. In reference, a natural laminar flow wing was designed by the inverse design. The several researches have been carried out regarding supersonic wing design. In addition, the CFD results also suggest that different optimum airfoils should be used depending on the planform because the trends of aerodynamic performance differ according to the planform. However, researchers have mainly focused on high swept-back wings such as swept wings, delta wings, and cranked arrow wings, and only a few studies have examined low swept-back wings. ![]() This result suggests that SST designers can choose a high swept-back planform or a low swept-back planform for the mission and the flight profile of the designed SST. On the other hand, several studies - by a computational fluid dynamics (CFD) say that the lower swept-back wing can also reduce the wave drag for the wing which has supersonic leading edge. It suggests that the wing which has larger sweep-back angle can reduce wave drag intransonic and supersonic cruise. ![]() Received 21 November 2015 accepted 16 January 2016 published 29 January 2016Ī wing of a supersonic transporter (SST) has been designed based on the sweep theory proposed in 1960s using the liner theory.
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