Power Balance in Aerodynamic Flows

AIAA 09-3762 Power Balance in Aerodynamic Flows

Feedback Control of Aerodynamic Flows

Every airplane has an associated external flow field that is extraordinarily rich in terms of its flow physics. It is intuitively obvious that the shape and configuration of the airplane influences the external flow physics, and the nature of the flow field influences the aerodynamic performance. An airplane is designed to perform optimally under certain operating conditions. Its aerodynamic pe...

Turning Flows into Trees: Graph Analytics for Aerodynamic Flows

Computational Fluid Dynamics (CFD) provides valuable simulation tools to the industry. In recent years, the development of the underlying algorithms and hardware resulted in a steep increase in the size of the data generated by CFD-solvers. The resulting I/O bottleneck can be alleviated by the use of contour trees : trees that capture the nesting relationship of isosurfaces of scalar fields, an...

Computationally Efficient Calculation of Aerodynamic Flows

A method is presented to construct computationally efficient reduced order models (ROMs) of three dimensional aerodynamic flows around commercial aircraft components. The method is based on the proper orthogonal decomposition (POD) of a set of steady snapshots, which are calculated using an industrial computational fluid dynamics (CFD) solver. The POD-mode amplitudes are calculated minimizing a...

Current Trends in Modeling Research For Turbulent Aerodynamic Flows

The engineering tools of choice for the computation of practical engineering flows have begun to migrate from those based on the traditional Reynolds-averaged Navier-Stokes approach to methodologies capable, in theory if not in practice, of accurately predicting some instantaneous scales of motion in the flow. The migration has largely been driven by both the success of Reynolds-averaged method...