ABSTRACT

Modern ice breakers, using new technology, are now able to create channels through level ice and clean out the ice fragments, resulting in an open-water channel between two large ice sheets. Whilst this negates the potential resistance increase on a following vessel due to interacting with the broken ice pieces, the ship performance will still be influenced by the two large ice sheets on either side. The effect of such ice sheets on ships has to date not been studied in detail, so the channel effect is usually ignored during ship design processes and power estimates. The present paper reports on work to develop a computational model to simulate a ship advancing in an open-water ice channel and investigate the associated ship-wave-ice interaction. Based on a series of simulations, this work how the ship resistance and wake change with ship speed, channel width and ice thickness.

摘要

现在，采用新技术的现代破冰船能够在水平冰上形成通道，并清除冰块，从而在两个大冰盖之间形成一条开放水道。虽然这抵消了由于与碎冰块的相互作用而导致下一个船只的潜在阻力增加，但船舶的性能仍将受到两侧的两个大冰盖的影响。迄今为止，尚未对这种冰盖对船舶的影响进行详细研究，因此通常在船舶设计过程和功率估算过程中会忽略通道效应。本文报道了开发计算模型的工作，以模拟船只在开阔水域的冰道中前进并研究相关的船-波-冰相互作用。基于一系列模拟，这项工作可以研究船舶阻力和尾流随船舶速度的变化，