The numerical study of hydrodynamic coefficients by RANS

Qiuxin Gao, Dracos Vassalos

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

In the paper, a CFD solver is applied to study the roll coefficients of a appended ship model with forward speed. Two approaches based on RANS and VOF modelling are adopted, namely, roll decay and forced roll motion. The results of roll coefficients from two approaches are compared and validated against model test data. The effects of viscosity on the hydrodynamic coefficients are studied by solving Euler equation. Additionally, the numerical simulation of forced roll motion at full scale is performed. The present results show that the influences of viscosity and scale on hydrodynamic coefficients except ship resistance are not large.
Original languageEnglish
Title of host publicationProceedings of the 11th International Conference on the Stability of Ships and Ocean Vehicles
EditorsK.J. Spyrou, N. Themelis, A.D. Papanikolaou
Place of PublicationAthens
Pages471-476
Number of pages6
Publication statusPublished - 23 Sep 2012
Event International Conference on the Stability of Ships and Ocean Vehicles (STAB 2012) - Athens, Greece
Duration: 23 Sep 201228 Sep 2012

Conference

Conference International Conference on the Stability of Ships and Ocean Vehicles (STAB 2012)
CountryGreece
CityAthens
Period23/09/1228/09/12

Keywords

  • RANS
  • hydrodynamic coefficients
  • roll decay
  • forced roll motion

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