Towards real-time fully coupled flight dynamics and CFD simulations of the helicopterlship dynamic interface

Ilker Oruc, Rajiv Shenoy, Jeremy Shipman, Joseph F. Horn

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

This study represents the ongoing efforts of a project whose ultimate goal is real-time virtual dynamic interface modeling and simulation with fully coupled Navier-Stokes CFD with a helicopter flight dynamics simulation. The coupling between GENHEL-PSUICRUNCH CFD has been developed in a recent work and successful results of fully coupled flight dynamics and CFD simulations of rotorcraftlship dynamic interface were presented. In the coupled simulations, the flight dynamics model is free to move within a computational domain, where the main rotor forces are converted to source terms in the momentum equations of the CFD solution. Simultaneously, the CFD solver calculates induced velocities that are fed back to the simulation and affect the aerodynamic loads in the flight dynamics. The CFD solver models the inflow, ground effect, and interactional aerodynamics in the flight dynamics simulation. An actuator disk model was used to map rotor blade loads into the computational domain. In order to enhance stability and efficiency of the CFD solution, rotor source terms are applied onto vertically stacked planes with a ID Gaussian distribution. In this work, the simulation framework for fully coupled piloted flight dynamics1CFD is demonstrated for a simplified shedding wake example. Improvements to the coupling interface are described that allow the simulation to run at real-time execution speeds on currently available computing platforms, demonstrating a simulation framework for pilot-in-the-loop CFD (PILCFD) flight simulation.

Original languageEnglish (US)
Title of host publication72nd American Helicopter Society International Annual Forum 2016
Subtitle of host publicationLeveraging Emerging Technologies for Future Capabilities
PublisherAmerican Helicopter Society
Pages2281-2290
Number of pages10
ISBN (Electronic)9781510825062
StatePublished - 2016

Publication series

NameAnnual Forum Proceedings - AHS International
Volume3
ISSN (Print)1552-2938

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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