Erian A. Baskharone is Professor Emeritus of Mechanical and Aerospace Engineering at Texas A&M University. He is a member of the ASME Turbomachinery Executive Committee. Dr Baskharone was a Senior Engineer with Allied-Signal Corporation, responsible for the aerothermodynamic design of various turbofan and turboprop engines. His research covered a wide spectrum of turbomachinery topics including the unsteady stator/roto flow interaction and the fluid-induced vibration of the Space Shuttle Main Engine turbopumps. His finite-element based perturbation approach to the problem of turbomachinery flu...