Implementing Aerodynamic Predictions from Computational Fluid Dynamics in Multidisciplinary Design Optimization of a High-Speed Civil Transport
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Motivation for including CFD predictions into the HSCT optimization comes from studies detailing the differences in supersonic aerodynamic predictions from linear theory, Euler, and parabolized Navier-Stokes (PNS) calculations for HSCT configurations. The effects of these differences in integrated forces and distributed loads on the aircraft performance and structural weight are investigated. These studies indicate that CFD drag solutions are required for accurate HSCT performance and weight estimates.
Response surface models are also used to provide useful information to the
designer with minimal computational effort.
Investigations into design trade-offs and sensitivities to certain design
variables, available at the cost of evaluating a simple quadratic polynomial,
In addition, a novel and effective approach to visualizing high dimensional,
highly constrained design spaces is enabled through the use of RS models.
NOTE: An updated copy of this ETD was added in July 2012 after there were patron reports of problems with the original file.
- Doctoral Dissertations