Since aircraft configuration plays an important role in aerodynamic performance and sonic boom shape, the configuration of the next generation supersonic civil transport has to be tailored to meet high aerodynamic performance and low sonic boom requirements. Computational fluid dynamics (CFD) can be used to design airplanes to meet these dual objectives. The work and results in this report are used to support NASA's High Speed Research Program (HSRP). CFD tools and techniques have been developed for general usages of sonic boom propagation study and aerodynamic design. Parallel to the research effort on sonic boom extrapolation, CFD flow solvers have been coupled with a numeric optimization tool to form a design package for aircraft configuration. This CFD optimization package has been applied to configuration design on a low-boom concept and an oblique all-wing concept. A nonlinear unconstrained optimizer for Parallel Virtual Machine has been developed for aerodynamic design and study.
Supersonic Civil Airplane Study and Design: Performance and Sonic Boom
1995
117 pages
Report
Keine Angabe
Englisch
Aircraft , Aerodynamics , Aerodynamic configurations , Aircraft configurations , Aircraft design , Aircraft performance , Computational fluid dynamics , Computer aided design , Sonic booms , Supersonic transports , Aerodynamic characteristics , Computer programs , Fortran , Oblique wings , Optimization , Tailless aircraft