Comparison Of unstructured grid and overset grid approaches for flow computations around a ship with an energy-saving duct

Takanori Hino, Masatoshi Hirota, Nobuyuki Hirata, Kunihide Ohashi

Abstract

Two approaches for CFD simulations for a complex geometry of a ship with an energy-saving duct are compared. One method is an unstructured grid method in which the single block grid can cover the whole geometry and the other is an overset grid method which uses multiple grid blocks for each component of the complex geometry. The computed results are compared with each other and with the experimental data for the resistance and the self-propulsion factors together with the flow fields. Based on these comparisons, two approaches are assessed from the practical point of view.

Original languageEnglish
Title of host publicationMARINE 2015 - Computational Methods in Marine Engineering VI
PublisherInternational Center for Numerical Methods in Engineering
Pages558-567
Number of pages10
ISBN (Print)9788494392863
StatePublished - 2015
Event6th International Conference on Computational Methods in Marine Engineering, MARINE 2015 - Rome, Italy

Other

Other6th International Conference on Computational Methods in Marine Engineering, MARINE 2015
CountryItaly
CityRome
Period15/6/1515/6/17

Fingerprint

Geometry
Ducts
Energy conservation
Ships
Propulsion
Flow fields
Computational fluid dynamics

Keywords

  • Energy- saving devices
  • Overset grid method
  • Ship flows
  • Unsturucture grid method

ASJC Scopus subject areas

  • Ocean Engineering
  • Computational Theory and Mathematics

Cite this

Hino, T., Hirota, M., Hirata, N., & Ohashi, K. (2015). Comparison Of unstructured grid and overset grid approaches for flow computations around a ship with an energy-saving duct. In MARINE 2015 - Computational Methods in Marine Engineering VI. (pp. 558-567). International Center for Numerical Methods in Engineering.

Comparison Of unstructured grid and overset grid approaches for flow computations around a ship with an energy-saving duct. / Hino, Takanori; Hirota, Masatoshi; Hirata, Nobuyuki; Ohashi, Kunihide.

MARINE 2015 - Computational Methods in Marine Engineering VI. International Center for Numerical Methods in Engineering, 2015. p. 558-567.

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

Hino, T, Hirota, M, Hirata, N & Ohashi, K 2015, Comparison Of unstructured grid and overset grid approaches for flow computations around a ship with an energy-saving duct. in MARINE 2015 - Computational Methods in Marine Engineering VI. International Center for Numerical Methods in Engineering, pp. 558-567, 6th International Conference on Computational Methods in Marine Engineering, MARINE 2015, Rome, Italy, 15-17 June.
Hino T, Hirota M, Hirata N, Ohashi K. Comparison Of unstructured grid and overset grid approaches for flow computations around a ship with an energy-saving duct. In MARINE 2015 - Computational Methods in Marine Engineering VI. International Center for Numerical Methods in Engineering. 2015. p. 558-567.

Hino, Takanori; Hirota, Masatoshi; Hirata, Nobuyuki; Ohashi, Kunihide / Comparison Of unstructured grid and overset grid approaches for flow computations around a ship with an energy-saving duct.

MARINE 2015 - Computational Methods in Marine Engineering VI. International Center for Numerical Methods in Engineering, 2015. p. 558-567.

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

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