High-Fidelity CFD Maneuver Simulation using a Socket-based Strong Coupling Approach

doi:10.4050/F-0081-2025-0197

Unable to log in or get member pricing? Having trouble changing your password?

Please review our Frequently Asked Questions for complete information on these and other common situations.

Vertical Flight Library & Store

CHECKOUT

0 Item(s) In Cart Total: $0.00

High-Fidelity CFD Maneuver Simulation using a Socket-based Strong Coupling Approach

Julius Klauck, Manuel Keßler, Universität Stuttgart

https://doi.org/10.4050/F-0081-2025-0197

Abstract:
In this paper the time accurate coupling between the high fidelity CFD code FLOWer and the multi-body dynamics code SIMPACK is presented. To facilitate this coupling a socket-based data exchange was developed and used to exchange aerodynamic forces and kinematic data. Two flight states were investigated: a hover and a forward flight. To obtain a reasonable initial flight state a previously obtained, trimmed solution was taken as the base. This study shows the feasibility of the strong coupling approach with the direct influence of the helicopter motion on the flow field and vice-versa. As expected, the factor limiting the overall performance is the runtime of the CFD simulation. The effort of running the flight mechanics simulation and the data exchange necessary for the strong coupling is negligible compared to this runtime.