Computational hydrodynamic optimization of galvanic anode shapes for tunnel thrusters

Computational hydrodynamic optimization of galvanic anode shapes for tunnel thrusters

We introduce a computational method for designing minimum-drag galvanic anodes for tunnel thrusters, assuming a given maximum anode mold diameter and a given anode weight. The method is illustrated for a tunnel of 1000 mm radius, and the results are evaluated by using Computational Fluid Dynamics (C...

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Veröffentlicht in:Marine systems & ocean technology : journal of SOBENA--Sociedade Brasileira de Engenharia Naval 2021-03, Vol.16 (1), p.23-28
Hauptverfasser: Immonen, Eero, Eriksson, Kenneth, Haavisto, Jouko
Format: Artikel
Sprache:eng
Schlagworte:
Anodes
Cavitation
Computational fluid dynamics
Diameters
Engineering
Fluid dynamics
Hydrodynamics
Offshore Engineering
Pressure drop
Sacrificial anodes
Shape optimization
Technical Note
Thrusters
Tunnel thrusters
Tunnels
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Beschreibung
Zusammenfassung:We introduce a computational method for designing minimum-drag galvanic anodes for tunnel thrusters, assuming a given maximum anode mold diameter and a given anode weight. The method is illustrated for a tunnel of 1000 mm radius, and the results are evaluated by using Computational Fluid Dynamics (CFD). For a representative 45° tunnel flow, the pressure drop caused by a single anode can be reduced by 92% and the risk of cavitation mitigated relative to a rectangular block anode shape
ISSN:1679-396X
2199-4749
DOI:10.1007/s40868-021-00096-6