Summary: 12th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference
Sep. 10­12, 2008/British Columbia, Canada
Helicopter Rotor Design Using
a Time-Spectral and Adjoint-Based Method
Seongim Choi
,
Stanford University, Stanford, CA 94305
Mark Potsdam
,
U. S. Army Aeroflightdynamics Directorate, RDECOM
Moffett field, CA 94035
Kihwan Lee
, Gianluca Iaccarino §
, and Juan J. Alonso ¶
Stanford University, Stanford, CA 94305
A time-spectral and adjoint-based optimization procedure that is particularly efficient
for the analysis and shape design of helicopter rotors is developed. The time-spectral
method is a fast and accurate algorithm to simulate periodic, unsteady flows by transform-
ing them to a steady-state analysis using a Fourier spectral derivative temporal operator.
An accompanying steady-state adjoint formulation for periodic unsteady problems is then

Source: Alonso, Juan J. - Department of Aeronautics and Astronautics, Stanford University

Collections: Engineering