사각 빙해수조에서의 Pack Ice 모형시험 기법 개발
Development of Model Test Methodology of Pack Ice in Square Type Ice Tank
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참고문헌
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초록
The main purpose of ice model basin is to assess and evaluate the performance of the Arctic ships and offshore structures because the full-scale tests in ice covered sea are usually very expensive and difficult. There are various ice conditions, such as level ice, brash ice,pack ice and ice ridge, in the real sea. To estimate their capacities in ice tank accurately, an appropriate model ice sheet and prepared ice conditions copied from actual sea ice conditions are needed. Pack ice is a floating ice that has been driven together into a single mass and a mixture of ice fragments of varying size and age that are squeezed together and cover the sea surface with little or no open water. So Ice-class vessels and Icebreaker are usually operated in pack ice conditions for the long time of her voyage. The most ice model tests include the pack ice test with the change of pack ice concentration. In this paper, the effect of pack ice size and channel breadth in pack ice model test is conducted and analyzed. Also we presented some techniques for the calculation of pack ice concentration in the model test. Finally, we developed a new model test methodology of pack ice condition in square type ice tank.
Abstract
The main purpose of ice model basin is to assess and evaluate the performance of the Arctic ships and offshore structures because the full-scale tests in ice covered sea are usually very expensive and difficult. There are various ice conditions, such as level ice, brash ice,pack ice and ice ridge, in the real sea. To estimate their capacities in ice tank accurately, an appropriate model ice sheet and prepared ice conditions copied from actual sea ice conditions are needed. Pack ice is a floating ice that has been driven together into a single mass and a mixture of ice fragments of varying size and age that are squeezed together and cover the sea surface with little or no open water. So Ice-class vessels and Icebreaker are usually operated in pack ice conditions for the long time of her voyage. The most ice model tests include the pack ice test with the change of pack ice concentration. In this paper, the effect of pack ice size and channel breadth in pack ice model test is conducted and analyzed. Also we presented some techniques for the calculation of pack ice concentration in the model test. Finally, we developed a new model test methodology of pack ice condition in square type ice tank.
참고문헌 (10)
- Model Testing of an Evacuation System in Ice-Covered Water with Waves, "Barker, A", PERD, 2004, Report 61-6
- Cho, S.R, "An Efficient EG", AD Model Ice for the MOERI Ice Tank, 2010, 1183~1187
- 조성락, "사각 빙해수조에서의 Pack Ice 모형시험 기법 개발", 대한조선학회 논문집, 48(5), pp.390~395 (2011), 대한조선학회
- Colbourne, D.B, "Effects of Hull-Ice Friction Coefficient on Predictions of Pack Ice Forces for Moored Offshore Vessels", Journal of Ocean Engineering, 37, pp.296~303 (2010)
- Donald, J.B, "Measurement of Ice Growth and Melt in the Labrador Pack Ice", International Journal of Offshore and Polar Engineering, 9(1) (1999)
- 김현수, "빙해선박의 선수 선형에 관한 연구", 대한조선학회 논문집, 47(3), pp.469~475 (2010), 대한조선학회
- 이춘주, "빙수조 모형시험법 개선 연구", 대한조선학회 논문집, 45(5), pp.562~568 (2008), 대한조선학회
- Pack Ice Management on the Southern Grand Banks Offshore Newfoundland, "Peter, D", PERD, 2005, Report 20-76
- Spencer, D, "CD Model Ice: A Process to Produce Correct Density Model Ice", Proceedings of IAHR Ice Symposium, 통권 : 2, pp.745~755 (1990)
- Timco, GW, "EG", AD, Journal of Cold Regions Science and Technology, pp.1986, 12[DOI]