1. Continuous Adjoint Approach for the Spalart-Allmaras Model in Aerodynamic Optimization
2. Caradonna,F.X.andTung,C."ExperimentalandAnalyticalStudiesofaHelicopterRotorinHover",NASATechnicalMemorandum81232, September1981.
3. 3Choi,S.,Alonso,J.J.,VanderWeide,E.,andSitaraman,J."ValidationStudyofAerodynamicAnalysisToolsforDesignOptimizationof HelicopterRotors",AIAA Paper07-3929,Miami FL, June 2007.
4. Prediction of Helicopter Rotor Loads Using Time-Spectral Computational Fluid Dynamics and an Exact Fluid–Structure Interface