Nowadays, marine economy shows a renewed interest in seaplanes thanks to their multiplex usage. Hull geometries remains almost the same since the third decade of the last century, when models such S55-X appeared. The main progress has consisted in a step behind the forebody on the lower surface of the hull, to decrease roughly the hydrodynamic drag in order to make a rapid take-off. Thus, the analysis provides the fluid dynamic behaviour in the take-off flight configuration of one of the twin hulls of the seaplane SavoiaMarchetti S55-X model aircraft built by the student team "Team S55". The study aims showing the analytical method useful to evaluate the velocity field, the pressure field, the trust and the drag coefficient changes on a hull initially at rest reaching the take-off velocity. The analytical results are compared with experimental data collected by NASA through the S55-X tank registered in the Technical Note no.635.

CFD take-off analysis of a seaplane hull through a dynamic multiphase model / Sinisi, M.; Cantanna, G.; Occhipinti, G.; Caramazza, A.; Dilonardo, G.; Cestino, E.. - (2022). (Intervento presentato al convegno 33rd ICAS Congress tenutosi a Stockholm, Sweden nel 4-9 September 2022).

CFD take-off analysis of a seaplane hull through a dynamic multiphase model

CESTINO, E.
2022

Abstract

Nowadays, marine economy shows a renewed interest in seaplanes thanks to their multiplex usage. Hull geometries remains almost the same since the third decade of the last century, when models such S55-X appeared. The main progress has consisted in a step behind the forebody on the lower surface of the hull, to decrease roughly the hydrodynamic drag in order to make a rapid take-off. Thus, the analysis provides the fluid dynamic behaviour in the take-off flight configuration of one of the twin hulls of the seaplane SavoiaMarchetti S55-X model aircraft built by the student team "Team S55". The study aims showing the analytical method useful to evaluate the velocity field, the pressure field, the trust and the drag coefficient changes on a hull initially at rest reaching the take-off velocity. The analytical results are compared with experimental data collected by NASA through the S55-X tank registered in the Technical Note no.635.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2974606