Full scale self-propulsion computations using discretized propeller for the KRISO container ship KCS

Castro, Alejandro; Carrica, Pablo M.; Stern, Frederick

doi:10.1016/j.compfluid.2011.07.005

Cited by 128 publications

(52 citation statements)

References 11 publications

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“…In addition, given the lack of experimental data for the wake field of the target-scale model (LPP = 50.95 m), the reliability of the flow-fie ld calculations can be validated with the help of the resistance data results. The error is less than 5% (table 7) when converting the resistance value of the target-scale model to a full-scale KCS ship [19], meeting the accuracy requirement of the resistance calculation.…”

Section: Numerical Simulations With Models Of Different Scalesmentioning

confidence: 99%

“…(9). The exact value of the total resistance coefficient for a full scale ship (LPP = 230 m) was adopted from the CFD calculation results of a previous study [19].…”

Section: Numerical Simulations With Models Of Different Scalesmentioning

confidence: 99%

“…The committee believed that the CFD method is the most reliable method of prediction of full-scale nominal wake field [17]. With the rapid development of CFD technology and computer hardware level, the calculation of full-scale nominal wake field has become possible in present theory [18][19][20], and the missing part is only the verification of the real ship data.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Simulation and Experimental Studies on Aft Hull Local Parameterized Non-Geosim Deformation for Correcting Scale Effects of Nominal Wake Field

Guo

Zhang

et al. 2017

Brod

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SummaryThe scale effects of an aft hull wake field pose a great challenge to propeller design and its performance prediction. Research into the characteristics of the scale effects and the subsequent correction of the errors caused by such effects play an important role in improving a ship's energy conservation and propulsion performance. For this research, using a KCS ship as the research target, the aft shape of an original ship model has been modified based on the smart dummy model (SDM) to change its nominal wake field. The present study explores the aft hull deformation of a KCS ship through a series of numerical calculations and validates the results using a similar ship model. In addition, wake field PIV-measurements are performed using particle image velocimetry to verify the corrected effects of the SDM. The SDM correction method offers a new pathway for correcting the errors associated with the scale effects in the nominal wake field measurements of a ship model.

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Section: Numerical Simulations With Models Of Different Scalesmentioning

confidence: 99%

“…(9). The exact value of the total resistance coefficient for a full scale ship (LPP = 230 m) was adopted from the CFD calculation results of a previous study [19].…”

Section: Numerical Simulations With Models Of Different Scalesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Numerical Simulation and Experimental Studies on Aft Hull Local Parameterized Non-Geosim Deformation for Correcting Scale Effects of Nominal Wake Field

Guo

Zhang

et al. 2017

Brod

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“…constant form factor of K = 0.1, as previously reported for the KCS hull (Castro et al 2011;Demirel et al 2017). A double-body simulation on the KCS hull geometry would enable the form factor K to be determined more accurately for each speed, directly from the comparison between hull resistance without a free surface (C W = 0) and numerical flat plate resistance (Raven et al 2008;Kouh et al 2009).…”

Section: Friction Form Factor K Fmentioning

confidence: 75%

“…These methods include the CFD results for the equivalent flat plate from Demirel et al (2017) and own calculations using the Granville method, as described in Schultz (2007) using the roughness function given by Demirel et al (2017). Additionally, each of these results (the CFD flat plate, and the Granville method) are further multiplied by a form factor (1+K) = 1.1 (Castro et al 2011;Demirel et al 2017), to determine whether such operation brings about any improvement in terms of accuracy.…”

Section: Comparison Of Penalty Prediction Methodsmentioning

confidence: 99%

Effect of ship hull form on the resistance penalty from biofouling

2018

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Hull biofouling is a well-known problem for the shipping industry, leading to increased resistance and fuel consumption. Considering that the effects of hull form on resistance are known to be higher for a less slender hull, it is hypothesised in this paper that the effect of biofouling roughness on resistance is also dependent on the hull form. To test this hypothesis, previously reported fullscale numerical results on a containership are re-analysed. Form effects on roughness penalties, corresponding to K ΔCT = 0.058 ± 0.025, are observed at a low speed (19 knots, Re s = 2.29 × 10 9 ), which are however cancelled out by traditionally neglected roughness effects on wave-making resistance at a higher speed (24 knots, Re s = 2.89 × 10 9 ). It is concluded that hull form effects on biofouling penalties can be significant at low speeds, though not generalisable for higher speeds, namely when wave-making resistance corresponds to ≥ 29% of total resistance.

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Hydrodynamic Tools in Ship Design

Marzi

Broglia

2018

A Holistic Approach to Ship Design

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Full scale self-propulsion computations using discretized propeller for the KRISO container ship KCS

Cited by 128 publications

References 11 publications

Numerical Simulation and Experimental Studies on Aft Hull Local Parameterized Non-Geosim Deformation for Correcting Scale Effects of Nominal Wake Field

Numerical Simulation and Experimental Studies on Aft Hull Local Parameterized Non-Geosim Deformation for Correcting Scale Effects of Nominal Wake Field

Effect of ship hull form on the resistance penalty from biofouling

Hydrodynamic Tools in Ship Design

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