Rans Predictions for End-plate Propeller and Compact Azipod at Model and Full Scale

Jaakko Pylkkänen

Research output: Contribution to journalArticleProfessional

Abstract

VTT has numerically investigated the hydrodynamic performance of two multi-component propulsors, an end-plate propeller and a Compact Azipod unit at full and model scales at the design operation points, respectively. VTT used RANSE (Reynolds-Averaged-Navier-Stokes Equation) solver FINFLO in the calculations. FINFLO is a multi-block cell-centered finite-volume computer code with sliding mesh, moving-grid and free-surface capabilities. Computations are made at model and full scale using Chien's low Reynolds k- turbulence model. VTT generated the computational meshes with the IGG grid program and an in-house built program. The ENSIGHT program was used for post-processing the output files. A summary of the results for the end-plate propeller analysis is presented here. For more details the reader is referred to the original paper (Sánchez-Caja et al., 2006b). Special emphasis was set on describing the flow over the endplate. Relative differences between calculations and experiments are presented for performance coefficients in open water condition at model scale. Good correlation with experiments is obtained in terms of overall forces.
Original languageEnglish
Pages (from-to)4-5
Number of pages2
JournalMaritime Research news
Volume21
Issue number1
Publication statusPublished - 2006
MoE publication typeD1 Article in a trade journal

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Propellers
Turbulence models
Navier Stokes equations
Hydrodynamics
Experiments
Processing
Water

Keywords

  • Hydrodynamic
  • computational
  • propulsor

Cite this

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title = "Rans Predictions for End-plate Propeller and Compact Azipod at Model and Full Scale",
abstract = "VTT has numerically investigated the hydrodynamic performance of two multi-component propulsors, an end-plate propeller and a Compact Azipod unit at full and model scales at the design operation points, respectively. VTT used RANSE (Reynolds-Averaged-Navier-Stokes Equation) solver FINFLO in the calculations. FINFLO is a multi-block cell-centered finite-volume computer code with sliding mesh, moving-grid and free-surface capabilities. Computations are made at model and full scale using Chien's low Reynolds k- turbulence model. VTT generated the computational meshes with the IGG grid program and an in-house built program. The ENSIGHT program was used for post-processing the output files. A summary of the results for the end-plate propeller analysis is presented here. For more details the reader is referred to the original paper (S{\'a}nchez-Caja et al., 2006b). Special emphasis was set on describing the flow over the endplate. Relative differences between calculations and experiments are presented for performance coefficients in open water condition at model scale. Good correlation with experiments is obtained in terms of overall forces.",
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author = "Jaakko Pylkk{\"a}nen",
year = "2006",
language = "English",
volume = "21",
pages = "4--5",
journal = "Maritime Research news",
issn = "0784-6010",
publisher = "VTT Technical Research Centre of Finland",
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}

Rans Predictions for End-plate Propeller and Compact Azipod at Model and Full Scale. / Pylkkänen, Jaakko.

In: Maritime Research news, Vol. 21, No. 1, 2006, p. 4-5.

Research output: Contribution to journalArticleProfessional

TY - JOUR

T1 - Rans Predictions for End-plate Propeller and Compact Azipod at Model and Full Scale

AU - Pylkkänen, Jaakko

PY - 2006

Y1 - 2006

N2 - VTT has numerically investigated the hydrodynamic performance of two multi-component propulsors, an end-plate propeller and a Compact Azipod unit at full and model scales at the design operation points, respectively. VTT used RANSE (Reynolds-Averaged-Navier-Stokes Equation) solver FINFLO in the calculations. FINFLO is a multi-block cell-centered finite-volume computer code with sliding mesh, moving-grid and free-surface capabilities. Computations are made at model and full scale using Chien's low Reynolds k- turbulence model. VTT generated the computational meshes with the IGG grid program and an in-house built program. The ENSIGHT program was used for post-processing the output files. A summary of the results for the end-plate propeller analysis is presented here. For more details the reader is referred to the original paper (Sánchez-Caja et al., 2006b). Special emphasis was set on describing the flow over the endplate. Relative differences between calculations and experiments are presented for performance coefficients in open water condition at model scale. Good correlation with experiments is obtained in terms of overall forces.

AB - VTT has numerically investigated the hydrodynamic performance of two multi-component propulsors, an end-plate propeller and a Compact Azipod unit at full and model scales at the design operation points, respectively. VTT used RANSE (Reynolds-Averaged-Navier-Stokes Equation) solver FINFLO in the calculations. FINFLO is a multi-block cell-centered finite-volume computer code with sliding mesh, moving-grid and free-surface capabilities. Computations are made at model and full scale using Chien's low Reynolds k- turbulence model. VTT generated the computational meshes with the IGG grid program and an in-house built program. The ENSIGHT program was used for post-processing the output files. A summary of the results for the end-plate propeller analysis is presented here. For more details the reader is referred to the original paper (Sánchez-Caja et al., 2006b). Special emphasis was set on describing the flow over the endplate. Relative differences between calculations and experiments are presented for performance coefficients in open water condition at model scale. Good correlation with experiments is obtained in terms of overall forces.

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KW - propulsor

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JF - Maritime Research news

SN - 0784-6010

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