Solution Accuracy. Solution accuracy considers the components of the CFD technology that are needed to ensure numerical simulation of the appropriate physical models, numerical algorithms, and relevant flow physics to a desired level of accuracy. In terms of solution accuracy, the Vision 2030 CFD capability must:
- Predict lift/drag/moment/stability derivative/efficiency/performance/noise/emissions characteristics with certifiable accuracy over the complete flight envelope. Certifiable accuracy refers to the quality of the numerical results that would be acceptable for product certification (such as FAA certification of engine systems for icing and bird strike).
- Simulate steady-state and time-dependent flows including problems with dynamically deforming geometries and relative body motion including possible changes in topology (e.g., real-time high-lift system deployment, aeroelastic wing response, rotor/airframe interaction, store separation).