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Aerodynamic Analysis of the Truss-Braced Wing Aircraft Using Vortex-Lattice Superposition ApproachThe SUGAR Truss-BracedWing (TBW) aircraft concept is a Boeing-developed N+3 aircraft configuration funded by NASA ARMD FixedWing Project. This future generation transport aircraft concept is designed to be aerodynamically efficient by employing a high aspect ratio wing design. The aspect ratio of the TBW is on the order of 14 which is significantly greater than those of current generation transport aircraft. This paper presents a recent aerodynamic analysis of the TBW aircraft using a conceptual vortex-lattice aerodynamic tool VORLAX and an aerodynamic superposition approach. Based on the underlying linear potential flow theory, the principle of aerodynamic superposition is leveraged to deal with the complex aerodynamic configuration of the TBW. By decomposing the full configuration of the TBW into individual aerodynamic lifting components, the total aerodynamic characteristics of the full configuration can be estimated from the contributions of the individual components. The aerodynamic superposition approach shows excellent agreement with CFD results computed by FUN3D, USM3D, and STAR-CCM+.
Document ID
20140011160
Document Type
Conference Paper
Authors
Ting, Eric Bi-Wen
(Stinger Ghaffarian Technologies, Inc. (SGT, Inc.) Moffett Field, CA, United States)
Reynolds, Kevin Wayne
(NASA Ames Research Center Moffett Field, CA United States)
Nguyen, Nhan T.
(NASA Ames Research Center Moffett Field, CA United States)
Totah, Joseph J.
(NASA Ames Research Center Moffett Field, CA United States)
Date Acquired
August 29, 2014
Publication Date
June 16, 2014
Subject Category
Aerodynamics
Aircraft Design, Testing And Performance
Report/Patent Number
ARC-E-DAA-TN15815
Meeting Information
Aviation 2014(Atlanta, GA)
Funding Number(s)
CONTRACT_GRANT: NNA14AA60C
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
vortex lattice method
truss-braced wing
aerodynamic superposition

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