[American Institute of Aeronautics and Astronautics 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition - Grapevine (Dallas/Ft. Worth Region), Texas ()] 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition - Derivation, Construction and Validation of a Nonlinear Model of an Axisymmetric Isolator from Two-Dimensional Euler Equations