36 research outputs found
Multi-point, multi-mission, high-fidelity aerostructural optimization of a long-range aircraft configuration
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/97134/1/AIAA2012-5706.pd
High Aspect Ratio Wing Design: Optimal Aerostructural Tradeoffs for the Next Generation of Materials
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/140410/1/6.2014-0596.pd
RANS-based Aerodynamic Shape Optimization Investigations of the Common Research Model Wing
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/140409/1/6.2014-0567.pd
Buffet-Onset Constraint Formulation for Aerodynamic Shape Optimization
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/143072/1/1.J055172.pd
Multipoint Aerodynamic Shape Optimization Investigations of the Common Research Model Wing
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/140687/1/1.J054154.pd
Aerodynamic Shape Optimization of the STARC-ABL Concept for Minimal Inlet Distortion
The NASA single-aisle turboelectric aircraft with an aft boundary layer propulsor (STARC-ABL) concept utilizes a novel electrically driven aft fan that ingests the fuselage boundary-layer for increased propulsive efficiency. In this paper we examine how aerodynamic shaping of the fuselage diffuser and nacelle inlet can reduce the flow distortion at the aft fan. Adjoint-based aerodynamic shape optimization with the ARP1420 distortion metric objective is used to automatically determine the optimal shapes for minimal fan-face distortion. Single and multipoint optimizations are carried out for simplified body-duct and wing-body-duct configurations. These two configurations highlight the importance of including the wing downwash effects when designing the propulsor. The optimizations showed the body-duct configuration can obtain cruise distortion values of approximately 1% while the wing-body-duct configuration can obtain distortion values of just over 2%
Component-based Geometry Manipulation for Aerodynamic Shape Optimization with Overset Meshes
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/143082/1/6.2017-3327.pd
Aerostructural Optimization of the D8 Wing with Varying Cruise Mach Numbers
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/143079/1/6.2017-4436.pd
NASA Ames Research Center Contributions to the PADRI Workshop
PADRI: A common platform for validation of aircraft drag reduction technologies; Generic strut-braced wing configuration; Slightly swept wing for low cruise Mach number (0.72); Simplified geometry without engines, empennage or flap-track fairings; Significant wave-drag and flow separation at strut-wing intersection; Focus of this workshop is to redesign the junctio
Aerodynamic Shape Optimization Investigations of the Common Research Model Wing Benchmark
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/140684/1/1.J053318.pd