Modeling Boundary Layer Ingestion Using a Coupled Aeropropulsive Analysis
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The single-aisle turbo-electric aircraft with an aft boundary layer propulsor aircraft concept is estimated to reduce fuel burn by 12% through a turboelectric propulsion system with an electrically powered propulsion system as discussed by the authors.Abstract:
The single-aisle turboelectric aircraft with an aft boundary layer propulsor aircraft concept is estimated to reduce fuel burn by 12% through a turboelectric propulsion system with an electrically ...read more
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OpenMDAO: an open-source framework for multidisciplinary design, analysis, and optimization
TL;DR: The theory and architecture of OpenMDAO is presented, an open-source MDO framework that uses Newton-type algorithms to solve coupled systems and exploits problem structure through new hierarchical strategies to achieve high computational efficiency.
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Electric, hybrid, and turboelectric fixed-wing aircraft: A review of concepts, models, and design approaches
TL;DR: In this article, the authors present a survey of electric aircraft propulsion, including all-electric, hybrid electric, and turboelectric architectures, and present an overview of electrical components and electric propulsion architectures.
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Effective adjoint approaches for computational fluid dynamics
TL;DR: The Jacobian-free method using source code transformation algorithmic differentiation to compute the partial derivatives is the best option because it computes exact derivatives with the lowest CPU time and the lowest memory requirements, and it also scales well up to 10 million cells and over one thousand CPU cores.
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Robust aerodynamic shape optimization—From a circle to an airfoil
TL;DR: The combination of flow solver robustness, precision of gradient information, robust mesh deformation, and adaptive parametrization brings us closer to a “push-button” solution for airfoil design.
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ADflow: An Open-Source Computational Fluid Dynamics Solver for Aerodynamic and Multidisciplinary Optimization
TL;DR: Computational fluid dynamics through the solution of the Navier–Stokes equations with turbulence models has become commonplace, but simply solving these equations is not sufficient to be able to solve the turbulence models.
References
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Viscous-inviscid analysis of transonic and low Reynolds number airfoils
Mark Drela,Michael B. Giles +1 more
TL;DR: In this article, a method of accurately calculating transonic and low Reynolds number airfoil flows, implemented in the viscous-inviscid design/analysis code ISES, is presented.
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Extensions to the design structure matrix for the description of multidisciplinary design, analysis, and optimization processes
TL;DR: The extended design structure matrix (XDSM) is presented, a new diagram for visualizing MDO processes based on extending the standard design structure Matrix to simultaneously show data dependency and process flow on a single diagram.
Journal ArticleDOI
Multipoint High-Fidelity Aerostructural Optimization of a Transport Aircraft Configuration
TL;DR: In this paper, a multi-point high-fidelity aerostructural optimization of a long-range wide-body transonic transport aircraft configuration is presented, where the coupled adjoint sensitivity method is used to efficiently compute gradients, enabling the use of gradient-based optimization with respect to hundreds of aerodynamic shape and structural sizing variables.
Journal ArticleDOI
High-Fidelity Aerostructural Design Optimization of a Supersonic Business Jet
TL;DR: In this paper, an integrated aerostructural method for the design of aerospace vehicles is presented, where both aerodynamic and structural structures are represented using high-fidelity models such as the Euler equations for the aerodynamics and a detailed finite element model for the primary structure.