Hull-form optimization of KSUEZMAX to enhance resistance performance
This paper deploys optimization techniques to obtain the optimum hull form of KSUEZMAX at the conditions of full-load draft and design speed. The processes have been carried out using a RaPID-HOP program. The bow and the stern hull-forms are optimized separately without altering neither, and the res...
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| Format: | Article |
| Language: | English |
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Elsevier
2015-01-01
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| Series: | International Journal of Naval Architecture and Ocean Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2092678216301042 |
| _version_ | 1811256567466557440 |
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| author | Jong-Heon Park Jung-Eun Choi Ho-Hwan Chun |
| author_facet | Jong-Heon Park Jung-Eun Choi Ho-Hwan Chun |
| author_sort | Jong-Heon Park |
| collection | DOAJ |
| description | This paper deploys optimization techniques to obtain the optimum hull form of KSUEZMAX at the conditions of full-load draft and design speed. The processes have been carried out using a RaPID-HOP program. The bow and the stern hull-forms are optimized separately without altering neither, and the resulting versions of the two are then combined. Objective functions are the minimum values of wave-making and viscous pressure resistance coefficients for the bow and stern. Parametric modification functions for the bow hull-form variation are SAC shape, section shape (U-Vtype, DLWL type), bulb shape (bulb height and size); and those for the stern are SAC and section shape (U-Vtype, DLWL type). WAVIS version 1.3 code is usedfor the potential and the viscous-flow solver. Prior to the optimization, a parametric study has been conducted to observe the effects of design parameters on the objective functions. SQP has been applied for the optimization algorithm. The model tests have been conducted at a towing tank to evaluate the resistance performance of the optimized hull-form. It has been noted that the optimized hull-form brings 2.4% and 6.8% reduction in total and residual resistance coefficients compared to those of the original hull-form. The propulsive efficiency increases by 2.0% and the delivered power is reduced 3.7%, whereas the propeller rotating speed increases slightly by 0.41 rpm. |
| first_indexed | 2024-04-12T17:43:21Z |
| format | Article |
| id | doaj.art-40e62a4526c04d109918ddf8bb38860b |
| institution | Directory Open Access Journal |
| issn | 2092-6782 |
| language | English |
| last_indexed | 2024-04-12T17:43:21Z |
| publishDate | 2015-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Naval Architecture and Ocean Engineering |
| spelling | doaj.art-40e62a4526c04d109918ddf8bb38860b2022-12-22T03:22:45ZengElsevierInternational Journal of Naval Architecture and Ocean Engineering2092-67822015-01-017110011410.1515/ijnaoe-2015-0008ijnaoe-2015-0008Hull-form optimization of KSUEZMAX to enhance resistance performanceJong-Heon Park0Jung-Eun Choi1Ho-Hwan Chun2Global Core Research Center for Ships and Offshore Plants, Pusan National University, Busan, KoreaGlobal Core Research Center for Ships and Offshore Plants, Pusan National University, Busan, KoreaDepartment of Naval Architecture and Ocean Engineering, Pusan National University, Busan, KoreaThis paper deploys optimization techniques to obtain the optimum hull form of KSUEZMAX at the conditions of full-load draft and design speed. The processes have been carried out using a RaPID-HOP program. The bow and the stern hull-forms are optimized separately without altering neither, and the resulting versions of the two are then combined. Objective functions are the minimum values of wave-making and viscous pressure resistance coefficients for the bow and stern. Parametric modification functions for the bow hull-form variation are SAC shape, section shape (U-Vtype, DLWL type), bulb shape (bulb height and size); and those for the stern are SAC and section shape (U-Vtype, DLWL type). WAVIS version 1.3 code is usedfor the potential and the viscous-flow solver. Prior to the optimization, a parametric study has been conducted to observe the effects of design parameters on the objective functions. SQP has been applied for the optimization algorithm. The model tests have been conducted at a towing tank to evaluate the resistance performance of the optimized hull-form. It has been noted that the optimized hull-form brings 2.4% and 6.8% reduction in total and residual resistance coefficients compared to those of the original hull-form. The propulsive efficiency increases by 2.0% and the delivered power is reduced 3.7%, whereas the propeller rotating speed increases slightly by 0.41 rpm.http://www.sciencedirect.com/science/article/pii/S2092678216301042Bow and stern hull-form optimizationKSUEZMAXRaPID-HOPParametric modification functionComputational fluid dynamics (CFD)Parametric studySequential quadratic programming (SQP)Model test |
| spellingShingle | Jong-Heon Park Jung-Eun Choi Ho-Hwan Chun Hull-form optimization of KSUEZMAX to enhance resistance performance International Journal of Naval Architecture and Ocean Engineering Bow and stern hull-form optimization KSUEZMAX RaPID-HOP Parametric modification function Computational fluid dynamics (CFD) Parametric study Sequential quadratic programming (SQP) Model test |
| title | Hull-form optimization of KSUEZMAX to enhance resistance performance |
| title_full | Hull-form optimization of KSUEZMAX to enhance resistance performance |
| title_fullStr | Hull-form optimization of KSUEZMAX to enhance resistance performance |
| title_full_unstemmed | Hull-form optimization of KSUEZMAX to enhance resistance performance |
| title_short | Hull-form optimization of KSUEZMAX to enhance resistance performance |
| title_sort | hull form optimization of ksuezmax to enhance resistance performance |
| topic | Bow and stern hull-form optimization KSUEZMAX RaPID-HOP Parametric modification function Computational fluid dynamics (CFD) Parametric study Sequential quadratic programming (SQP) Model test |
| url | http://www.sciencedirect.com/science/article/pii/S2092678216301042 |
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