[논문]Turbulent wake field reconstruction of VLCC models using two-dimensional towed underwater PIV measurements

Seo, J.; Seol, D.M.; Han, B.; Rhee, S.H.

doi:10.1016/j.oceaneng.2016.03.021

Turbulent wake field reconstruction of VLCC models using two-dimensional towed underwater PIV measurements 원문보기

Ocean engineering, v.118, 2016년, pp.28 - 40

Seo, J. , Seol, D.M. , Han, B. , Rhee, S.H.

Abstract ▼ AI-Helper

In the present study, the wake fields of two full ship models were measured using a two-dimensional (2D) towed underwater particle image velocimetry (PIV) system to identify the flow characteristics around a hull with a high block coefficient. The 2D PIV measurements and reconstructing the three-dimensional (3D) flow field by stacking the 2D measurements were validated and applied to the model ship wakes in a towing tank. The bare hull wake was measured for a very large crude oil carrier (VLCC) model, KVLCC2, at a Froude number of 0.142 based on the length between perpendiculars (L-pp). These measurements were compared with those of five-hole Pitot tubes, a Pitot-static tube, and hot-wire anemometers for validation. After the validation tests, the nominal wake field of a generic VLCC model with a Froude number of 0.145 based on L-pp was measured. To identify the effects of a rudder and rotating propeller on the mean velocity and turbulence characteristics, a 3D reconstruction was carried out for the generic VLCC model under self-propulsion conditions. (C) 2016 Elsevier Ltd. All rights reserved.

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참고문헌 (28)

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Turbulent wake field reconstruction of VLCC models using two-dimensional towed underwater PIV measurements 원문보기

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Turbulent wake field reconstruction of VLCC models using two-dimensional towed underwater PIV measurements 원문보기

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