Planar motion mechanism tests in circulating water channel and numerical simulation of oblique towing

  • LIU Han ,
  • MA Ning ,
  • DENG De-heng ,
  • et al
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  • (a.School of Naval Architecture, Ocean and Civil Engineering;b. State Key Laboratory of Ocean Engineering,  Shanghai Jiaotong
    University,Shanghai 200240,China)

Received date: 2015-11-07

  Revised date: 2015-12-03

  Online published: 2015-12-10

Abstract

To rid the test condition of limitations from a towing tank and improve measurements, a planar motion mechanism (PMM) test was carried out by using circulating water channel (CWC).Taking the large oil tankers model KVLCC2 as research object, oblique towing, pure swaying and pure yawing tests under a series of working conditions were performed respectively, and the hydrodynamic derivatives applied to ship maneuvering motions were obtained. Compared with National Maritime Research Institute (NMRI) test results, the high reliability of the PMM test in CWC was proved. Moreover, the numerical simulation of oblique towing tests at different drift angles in the CWC was performed with a general-purpose computational fluid dynamics (CFD) package, and hydrodynamic forces and moments acting on the model were compared with the test data. Comparison result demonstrates that the proposed numerical simulation method is suitable for calculating the hydrodynamic force of CWC oblique towing tests.

Cite this article

LIU Han , MA Ning , DENG De-heng , et al . Planar motion mechanism tests in circulating water channel and numerical simulation of oblique towing[J]. Journal of Dalian Maritime University, 2016 , 42(2) : 8 -13 . DOI: 10.16411/j.cnki.issn1006-7736.2016.02.002

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