The laminar flow about a circular cylinder beneath a Stokes waves train is numerically investigated. An efficient grid-free algorithm is developed by coupling an accurate boundary integral equation method for computing the velocity field with a viscous vortex method for solving the Navier-Stokes equations near the body. The problem of generating the incident wave system is effectively circumvented by means of a perturbation formulation which assumes the Stokes wave solution as the base flow. For β ≈ 500 and Kc = O(1) the systematic comparison with the available experimental values for the Fourier components of the loading is presented. An overall good agreement is observed, even for the added inertia coefficient which is known to be largely affected by viscous effects.

Viscous effects in wave-body interaction / M., Landrini; M., Ranucci; Casciola, Carlo Massimo; Graziani, Giorgio. - In: INTERNATIONAL JOURNAL OF OFFSHORE AND POLAR ENGINEERING. - ISSN 1053-5381. - STAMPA. - 8,1:(1998), pp. 39-45.

Viscous effects in wave-body interaction

CASCIOLA, Carlo Massimo;GRAZIANI, Giorgio
1998

Abstract

The laminar flow about a circular cylinder beneath a Stokes waves train is numerically investigated. An efficient grid-free algorithm is developed by coupling an accurate boundary integral equation method for computing the velocity field with a viscous vortex method for solving the Navier-Stokes equations near the body. The problem of generating the incident wave system is effectively circumvented by means of a perturbation formulation which assumes the Stokes wave solution as the base flow. For β ≈ 500 and Kc = O(1) the systematic comparison with the available experimental values for the Fourier components of the loading is presented. An overall good agreement is observed, even for the added inertia coefficient which is known to be largely affected by viscous effects.
1998
01 Pubblicazione su rivista::01a Articolo in rivista
Viscous effects in wave-body interaction / M., Landrini; M., Ranucci; Casciola, Carlo Massimo; Graziani, Giorgio. - In: INTERNATIONAL JOURNAL OF OFFSHORE AND POLAR ENGINEERING. - ISSN 1053-5381. - STAMPA. - 8,1:(1998), pp. 39-45.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/246624
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