Show all publications

CFD analysis of the full-scale resistance of an oil tanker in presence of a mud–water interface

AuthorsLovato, S., Toxopeus, S.L., Settels, J.W., Keetels, G.H., Kirichek, A.
Conference/JournalOcean Engineering
Date15 Feb 2024
The presence of mud layers on the bottom of ports and waterways can have negative effects on the hydrodynamic behaviour of marine vessels. This numerical study investigates the effect of muddy seabeds on the full-scale resistance of an oil tanker sailing straight ahead. The objective is to determine the influence of factors such as the densimetric Froude number, UKC and mud rheology at speeds between 3 and 9 knots. The numerical study is conducted using a finite-volume Reynolds-Averaged Navier–Stokes (RANS) flow solver combined with the Volume-Of-Fluid (VOF) method to capture the mud–water interface. At certain critical speeds, the presence of mud increased the ship’s total resistance by up to 15 times compared to the case with solid bottoms. The non-Newtonian rheology of mud was found to influence the ship’s resistance mainly at low speeds and when sailing through the mud layer. This article also shows that, when sailing through mud, the computed resistance at high speeds may be underestimated because of two effects, namely ‘water lubrication’ and ‘numerical ventilation’.


Contact person photo

Stefano Lovato


Serge Toxopeus

Team leader CFD development / Senior Researcher

You will need an account to view this content

To view this content you will need a login account. If you already have an account you can sign in below. If you want an account then you can create one.

cfd/simulation/desk studiescfdmanoeuvring and nautical studiesnautical operationsinfrastructurecfd development