TY - RPRT TI - Koopman-Based Approach to Nonintrusive Reduced Order Modeling: Application to Aerodynamic Shape Optimization and Uncertainty Propagation AU - Renganathan, S. Ashwin PY - 2020 DO - 10.2514/1.j058744 UR - https://www.osti.gov/biblio/1637464 ID - 1637464 ER -