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Numerical simulation on the hydrodynamic performance of an azimuthing pushing podded propulsor in reverse flow and rotation
Abstract In this study, the hydrodynamic performance of a reverse podded propulsor under azimuthing conditions is evaluated. The shear stress transfer (SST) k-omega turbulence model and sliding mesh technique are adopted for this evaluation, and the commercially available software, STAR-CCM+ is used for the numerical simulation. An extensive convergence study was performed with respect to time step and grid size to verify the numerical simulation. The hydrodynamic performance is analyzed under different advance velocities as the propulsor sinusoidally azimuths from 130° to 230°. The forces and moments generated by the propulsor in steady oblique flow are compared with those under azimuthing condition. It is found that the forces and axial moments of the propulsor in oblique flow generally varies in between the envelopes of the transient ones under an azimuthing state, while the vertical and horizontal moments are observed too strongly deviate from one another.
Numerical simulation on the hydrodynamic performance of an azimuthing pushing podded propulsor in reverse flow and rotation
Abstract In this study, the hydrodynamic performance of a reverse podded propulsor under azimuthing conditions is evaluated. The shear stress transfer (SST) k-omega turbulence model and sliding mesh technique are adopted for this evaluation, and the commercially available software, STAR-CCM+ is used for the numerical simulation. An extensive convergence study was performed with respect to time step and grid size to verify the numerical simulation. The hydrodynamic performance is analyzed under different advance velocities as the propulsor sinusoidally azimuths from 130° to 230°. The forces and moments generated by the propulsor in steady oblique flow are compared with those under azimuthing condition. It is found that the forces and axial moments of the propulsor in oblique flow generally varies in between the envelopes of the transient ones under an azimuthing state, while the vertical and horizontal moments are observed too strongly deviate from one another.
Numerical simulation on the hydrodynamic performance of an azimuthing pushing podded propulsor in reverse flow and rotation
Hu, Jian (Autor:in) / Zhao, Wang (Autor:in) / Chen, Chong-ge (Autor:in) / Guo, Chunyu (Autor:in)
Applied Ocean Research ; 104
18.08.2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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