Application of CDISC design module to rotor section design

摘要

A rotor section aerodynamic design package is developed by coupling the Constrained Direct Iterative Surface Curvature (CDISC) design method with the FPX rotor code. ^The coupling between the CDISC design and the FPX flow analysis is fully automated. ^The CDISC design method employs a predictor-corrector procedure iteratively to determine a surface geometry which produces a target pressure distribution, where target pressure distribution is either pre-defined or automatically generated through flow and geometry constraints. ^The FPX code is an extended Full-Potential rotor CFD code, which solves 3D unsteady full-potential equation in a strong conservative form using an implicit approximate-factorization finite-difference scheme with entropy and viscosity corrections. ^Application of the CDISC design method coupled with the FPX rotor code is made for rotor blades in hovering motions. ^A few design examples are presented to demonstrate the capability and efficiency of the new package in rotor section design. ^(Author)