1 Ocak 2020 Dergi makalesi Açık Erişim

Saydam, Ahmet Ziya; Gokcay, Serhan; Insel, Mustafa

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    <subfield code="a">Evaluation of Aerodynamic Characteristics of Mega-Yacht Superstructures by CFD Simulations</subfield>
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    <subfield code="a">Air wake distribution around the superstructure of a mega-yacht is a key concern for the designer because of various reasons such as comfort expectations in recreational deck areas, self-noise generation, air pollution and temperature gradients due to exhaust interactions, and safety of helicopter operations such as landing/take off and hovering. The Reynolds-averaged Navier-Stokes (RANS) technique in computational fluid dynamics (CFD) is frequently used in studies on mega-yacht hydrodynamics and aerodynamics with satisfactory results. In this article, a case study is presented for the utilization of CFD in a mega-yacht's superstructure design. The flow field in recreational open areas has been analyzed for the increase in velocity due to the existence of the superstructure. A reduction in self-noise of the mast structure has been aimed by reducing flow separation and vorticity. Time-dependent velocity data obtained with scale-resolving simulations are presented for the evaluation of helicopter landings. The capabilities and limitations of the RANS technique are discussed along with recent developments in modeling approaches.</subfield>
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    <subfield code="u">Hidrotekn Naut Design Ltd, Istanbul, Turkey</subfield>
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