Curl Mechanism of a Curling Stone on Ice Pebbles

IF 1 Q4 GEOGRAPHY, PHYSICAL
N. Maeno
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引用次数: 23

Abstract

We present a physical model that accounts for the curl mechanism of a curling stone on ice pebbles. The evaporation-abrasion model is based on the two essential features of curling: pebbles and running band. The ice friction coefficient at the rear half of a running band is larger than that at the front half because of cooling due to evaporation of pebbles. The asymmetry of the friction force is enhanced by mechanical interactions of ice debris produced by the front running band with the rear band, and result in the curl, or lateral deflection of the stone.The asymmetry is larger, that is the curl distance is larger, at smaller velocity, higher temperature, lower humidity, and larger radius of a running band. However, it is independent of the angular velocity, that is the curl distance does not depend on the total number of rotations.
冰壶在冰卵石上的卷曲机理
我们提出了一个物理模型来解释冰壶在冰卵石上的卷曲机制。蒸发磨损模型是基于滚石的两个基本特征:卵石和滚石带。滑带后半段的冰摩擦系数比前半段的冰摩擦系数大,这是由于小石子蒸发冷却造成的。摩擦力的不对称性是由前跑带与后跑带产生的冰碎片的机械相互作用增强的,并导致石头的卷曲或侧向偏转。不对称性越大,即在速度越小、温度越高、湿度越低、跑带半径越大的情况下,旋度距离越大。然而,它与角速度无关,也就是说旋度距离不依赖于旋转的总次数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Bulletin of glaciological research
Bulletin of glaciological research GEOGRAPHY, PHYSICAL-
CiteScore
2.20
自引率
20.00%
发文量
1
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