Research on Overload Method Based on Known Ice Resistance for Self-Propulsion Test in Conventional Towing Tank

In this paper, a series of tests for a polar carrier were carried out in the large-scale conventional towing tank of China Ship Scientific Research Center (CTT-CSSRC). In order to obtain thrust identity, lifting surface theory was applied to evaluate and design a pair of ice class propeller according to parameters of stock propeller from towing tank of KRYLOV. Ship model and propeller models were manufactured by CSSRC for self-propulsion test of CTT. Overload method was employed in low speed condition based on ice resistance known from ice tank of KRYLOV. Compared to test results of towing tank of KRYLOV, the difference in thrust and revolutions in full scale were 0.2~7% at almost, at the same time, the icebreaking performance in full scale were calculated and compared with prediction results of ice tank of KRYLOV, the difference in icebreaking thickness were 3.5~7.8% at same condition. The measured results indicated that it is very effective to assess performance of polar carrier using this overload method at CTT, and it can supply acceptable evaluation result for designer.

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  • English

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  • Accession Number: 01745197
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 6 2020 3:11PM