High-Fidelity Aerodynamic Shape Optimization of a Lifting-Fuselage Concept for Regional Aircraft

Reist, Thomas A.; Zingg, David W.

doi:10.2514/1.c033798

Cited by 37 publications

(13 citation statements)

References 49 publications

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“…Examples include the blended wing-body configuration [17], the lifting-fuselage configuration [18], the D8 [19], the strut-braced wing configuration [20], and the box-wing [21] and joined-wing configurations [22].…”

Section: Motivationmentioning

confidence: 99%

“…Other variations include the lifting-fuselage configuration, which takes on a more elongated wing-body design and performs better in the regional class segment [18].…”

Section: Motivationmentioning

confidence: 99%

“…Koo and Zingg [48] applied the algorithm to the CRM wing-body-tail configuration, in addition to several wingletted wings sized for the Boeing 737-900; these included a winglet up configuration, a wingtip fence configuration, and a split-tip configuration. Jetstream has also been used by Reist and Zingg [18] to design and study a lifting-fuselage configuration.…”

Section: Aerodynamic Shape Optimizationmentioning

confidence: 99%

“…For the fuselage, the drag coefficient is based on the conventional wing-body-tail geometry of Reist and Zingg [18] and has a value of C D F = 0.0106 with a reference area of S = 935 ft 2 . Meanwhile, the drag coefficient of the vertical stabilizer is determined by performing an isolated RANS analysis and has a value of C D V = 0.0011 based on the same reference area.…”

Section: Problem Setupmentioning

confidence: 99%

“…When accounting for the drag con- Grid Number of Nodes Average y drag coefficient of the regional aircraft becomes 274 counts, and results in a lift-to-drag ratio of 16.50. Although nearly identical in design, the conventional cantilever-wing regional aircraft of Reist and Zingg [18], which models the fuselage, is characterized by a lift-to-drag ratio of 19.8.…”

Section: An Optimized Design Was Obtained Following the Completion Ofmentioning

confidence: 99%

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Aerodynamic Shape Optimization of a Box-Wing Regional Aircraft Based on the Reynolds-Averaged Navier-Stokes Equations

Chau

2017

35th AIAA Applied Aerodynamics Conference

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The box wing is an unconventional aircraft configuration that has the potential to provide major savings in fuel consumption relative to the conventional cantilever wing. In order to further develop and evaluate this potential, high-fidelity aerodynamic shape optimization is applied to the aerodynamic design of a box wing and a cantilever wing, based on the Embraer E190 regional jet, with the latter serving as a performance baseline. The optimization framework consists of B-spline parameterization, free-form and axial deformation geometry control, an integrated mesh-movement scheme based on the theory of linear elasticity, a Newton-Krylov-Schur flow solver for the Reynolds-averaged Navier-Stokes equations, a gradient-based optimizer, and the discrete-adjoint method for gradient evaluation. Results indicate that a box-wing with a heightto-span ratio of 0.26 burns 7.61% less fuel at cruise than a conventional baseline of the same span and lift. Aerodynamic trends and trade-offs are investigated, and a weight sensitivity study is performed.ii Acknowledgements First and foremost, I would like to thank my supervisor, Professor David Zingg. I cannot thank him enough for the opportunity to work on such a state-of-the-art problem, which has proven to be challenging, but incredibly rewarding. I also have him to thank for the invaluable knowledge and experience that I have gained during these past few years. His passion for computational aerodynamics and environmentally-friendly aircraft design is something to be envied, and will always serve as a pillar of inspiration. I would also like to thank the UTIAS community for creating a welcoming and fun work environment. To the computational aerodynamics group, thank you for all of the helpful feedback you have given me over the years, and for making my late nights in the lab palatable. In particular, I would like to thank Dr. Shahriar Khosravi for the many interesting discussions on aerodynamics and structures, and Dr. Thomas Reist for his invaluable technical guidance and discussions on aircraft design.

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Section: Motivationmentioning

confidence: 99%

“…Other variations include the lifting-fuselage configuration, which takes on a more elongated wing-body design and performs better in the regional class segment [18].…”

Section: Motivationmentioning

confidence: 99%