A numerical and experimental study on the hydrodynamic of a catamaran varying the demihull separation
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Inclou dades d'ús des de 2022
Cita com:
hdl:2117/333302
Tipus de documentText en actes de congrés
Data publicació2011
EditorCIMNE
Condicions d'accésAccés obert
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Abstract
A complementary experimental and numerical study of the interference effect
for a fast catamaran is presented. Resistance, sinkage and trim are collected by towing
tank experiments for Froude number in the range from 0.2 to 0.8 for several separation
distances and for the monohull. Resistance coefficient curves reveal the presence of two
humps, the second one strongly depending on the separation length; high interference
is observed in correspondence of the second hump. To gain a deeper insight into these
behaviors, a complementary analysis is carried out by a numerical campaign; simulations
are performed by means of an in-house unsteady RANS solver. Verification of numerical
results is provided, together with validation, which is made by the comparison with both
present and other experimental data. Agreement in terms of resistance coefficient is rather
good, comparison error being always smaller than 2.2%.
CitacióZaghi, S.; Broglia, R.; Di Mascio, A. A numerical and experimental study on the hydrodynamic of a catamaran varying the demihull separation. A: . CIMNE, 2011, p. 662-673.
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