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Comparison of Hydrodynamic Coefficients obtained through Implementation of Diverse Methods in Square Tank
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 Title & Authors
Comparison of Hydrodynamic Coefficients obtained through Implementation of Diverse Methods in Square Tank
Kang, Seunghyun; Yoon, Hyeon Kyu;
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 Abstract
To confirm whether the square tank at Changwon National University (CWNU) can be used for estimation of maneuverability, planar motion mechanism (PMM) test and circular motion (CM) test were performed for various conditions. PMM test can be implemented using an XY carriage and a yaw table in the square tank. However, sometimes test section is insufficient for PMM test owing to low length-breadth ratio of the tank. In addition, the speed of a towing carriage is also quite limited. Therefore, it would be useful if PMM test could be effectively performed diagonally, by establishing coupled control logic to drive three servomotors. In addition, Froude number dependency on the estimated hydrodynamic coefficients was checked. Furthermore, CM tests, which cannot be completed in a conventional linear towing tank, were performed, and its results were compared with the results of PMM test. The results of the PMM tests in the diagonal direction were consistent with the results of the test performed in the direction parallel to the sidewall. However, the results of the CM test were greater than those of the PMM test. This tendency was also observed in the results published at Ulsan University.
 Keywords
PMM test;CM test;square tank;hydrodynamic coefficients;Froude number;
 Language
English
 Cited by
 References
1.
Kim, D. J. (2012), "A study on the running attitude and dynamic stability of a semi-displacement round bilge vessel at high speed", PhD thesis, Seoul National University.

2.
Kim, Y. G., Yeo, D. J., Kim, S. Y., Yun, K. H. and Oh, B. I. (2009), "Prediction of Maneuverability of KCS by CPMC Captive Model Test", Journal of the Society of Naval Architects of Korea, Vol. 46, No. 6, pp. 553-561. crossref(new window)

3.
Kim, Y. G., Yeo, D. J., Son, N. S., Kim, S. Y., Yun, K. H. and Oh, B. I. (2011), "Prediction of Maneuverability of KCS with 4 Degrees of Freedom", Journal of the Society of Naval Architects of Korea, Vol. 48, No. 3, pp. 267-274. crossref(new window)

4.
Shin, H. K., Jung, J. H. and Lee, H. Y. (2009), "Prediction of Ship Manoeuvrability by Circular Motion Test", Journal of the Society of Naval Architects of Korea, Vol. 46, No. 3, pp. 259-267. crossref(new window)

5.
Shin, H. K. and Choi, S. H. (2011) "Prediction of Ship Maneuverability of KCS Using Captive Model test", Journal of the Society of Naval Architects of Korea, Vol. 46, No. 3, pp. 465-472.

6.
SIMMAN. (2008), http://www.simman2008.dk/KVLCC/KVLCC2/kvlcc2_test_program.htm.

7.
Tajima, S. I., Ikeda, Y., Katayama, T. and Okumura, H. (1999), "Measurements of Hydrodynamic Forces Acting on Planing Hull at High-Speed by Planar Motion Mechanism Test", Journal of the Kansai Society of Naval Architects, Japan, No. 232, pp. 71-75.

8.
Yoon, H. K. and Kang, S. (2013), "Experimental Investigation on the Depth Effect of Hydrodynamic Coefficients Obtained by PMM Test in Square Tank", 3rd International Conference on Ship Manoeuvring in Shallow Water and Confined Water.