High-order CAA and low-order CFD codes are used by the research group to study the complex flow fields around streamlined and bluff bodies. The high-order solver employs the same numerical schemes and non-reflective boundary conditions that are used in the LEE and Euler solvers. A hybrid RANS/LES strategy is typically applied to complex geometries to resolve the wide range of flow structures that are critical to the radiated noise level. In some cases, we employ a low-order open-source CFD code, which was used to develop the video. In the video, the complex flow structures around an aircraft nose landing gear are illustrated.