Accession Number:

ADA609968

Title:

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

Descriptive Note:

Progress rept. 20 May-20 Jun 2014

Corporate Author:

COMBUSTION RESEARCH AND FLOW TECHNOLOGY INC PIPERSVILLE PA

Personal Author(s):

Report Date:

2014-06-20

Pagination or Media Count:

7.0

Abstract:

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 airwakeaircraft 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.

Subject Categories:

  • Aerodynamics
  • Military Aircraft Operations
  • Operations Research
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE