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 Chunyu Guo,Qi Zhang,Yu Shen.A Non-geometrically Similar Model for Predicting the Wake Field of Full-scale Ships[J].Journal of Marine Science and Application,2015,(3):225-233.[doi:10.1007/s11804-015-1316-8]
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A Non-geometrically Similar Model for Predicting the Wake Field of Full-scale Ships


A Non-geometrically Similar Model for Predicting the Wake Field of Full-scale Ships
Chunyu Guo1 Qi Zhang12 Yu Shen1
Chunyu Guo1 Qi Zhang12 Yu Shen1
1. College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China;
2. Technical Center, COSCO Shipyard Group Co. Ltd., Dalian 116600, China
wake fieldfull-scale shipsnon-geometrically similar modelscale effectKRISO’s container ship (KCS)
The scale effect leads to large discrepancies between the wake fields of model-scale and actual ships, and causes differences in cavitation performance and exciting forces tests in predicting the performance of actual ships. Therefore, when test data from ship models are directly applied to predict the performance of actual ships, test results must be subjected to empirical corrections. This study proposes a method for the reverse design of the hull model. Compared to a geometrically similar hull model, the wake field generated by the modified model is closer to that of an actual ship. A non-geometrically similar model of a Korean Research Institute of Ship and Ocean Engineering (KRISO)’s container ship (KCS) was designed. Numerical simulations were performed using this model, and its results were compared with full-scale calculation results. The deformation method of getting the wake field of full-scale ships by the non-geometrically similar model is applied to the KCS successfully.


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Last Update: 2015-09-01