Pilot-in-the-loop Method Development (2012 Basic and Applied Research in Sea-Based Aviation).

摘要

The goal of this project is to integrate novel numerical modeling and computer hardware approaches to compute the non-linear aerodynamic coupling between the ship and aircraft in such a way that execution times are at real- time speeds, allowing for pilot-in-the-loop CFD to be integrated in the piloted flight simulation environment. To achieve the speed gains required, three areas will be targeted for implementation into the CFD simulation framework: (1) numerical algorithms, (2) novel domain boundaries, and (3) Graphical Processing Unit (GPU) hardware. A framework will be established to link the CFD with real time simulations. A building block approach will be employed to first demonstrate non-real time integration of the CFD simulation framework with helicopter flight dynamic models, then real time execution for a minimum fidelity airwake/aircraft simulation, then build to higher fidelity real time simulations. During this reporting period, solver development was performed in two areas: (1) the incompressible formulation employed by the CRUNCH CFD code for CFD airwake simulations was implemented in the structured CRAFT CFD solver (which previously only included a fully compressible formulation) to improve the structured airwake solutions, and (2) an approach has been developed for integrating both the CRAFT CFD and CRUNCH CFD solvers within a common simulation framework (this will make possible combining solver speedups from tasks 1 to 4 in the future).