Numerical analysis of the wind forces acting on cruise ships
Ibáñez Rioja, Alejandro (2020)
Diplomityö
2020
School of Engineering Science, Laskennallinen tekniikka
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2020101684270
https://urn.fi/URN:NBN:fi-fe2020101684270
Tiivistelmä
Wind loads acting on cruise ships play a significant role in navigation and manoeuvrability during the harbour approaching. From the environmental point of view, their fuel efficiency and emissions are in the center of attention nowadays. In this study, numerical analysis of the wind forces acting on six different cruise ship models is performed with computational fluid dynamic (CFD) methods. The wind flow is modelled with Reynolds-
Averaged Navier-Stokes (RANS) equations, Realizable k-epsilon turbulent model and atmospheric boundary layer (ABL) wind profiles. Each cruise ship is simulated from 0º to 180º, in steps of 15º angles of wind attack. In order to increase the reliability of the results, a mesh independence study is performed by applying two different meshes in each case simulated. The results are presented in form of dimensionless coefficients.
Averaged Navier-Stokes (RANS) equations, Realizable k-epsilon turbulent model and atmospheric boundary layer (ABL) wind profiles. Each cruise ship is simulated from 0º to 180º, in steps of 15º angles of wind attack. In order to increase the reliability of the results, a mesh independence study is performed by applying two different meshes in each case simulated. The results are presented in form of dimensionless coefficients.