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海洋通报  2011 

粘塑性海冰流变模型的稳定性分析

DOI: 10.11840/j.issn.1001-6392.2011.6.005, PP. 625-632

Keywords: 海冰,流变模型,稳定性,椭圆屈服曲线,插值

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Abstract:

对Hibler1977提出的具有粘塑性本构关系的海冰模型进行了修改和稳定性分析。在已有的工作中,应用这样一个粘塑性本构关系进行数值积分时大多都必须引入人工扩散项。这里我们用数值逼近技巧提出计算相邻浮冰之间相互作用力的新方法,并且证明修改后的模型无论是海冰的收敛还是发散流动都是稳定的,模式积分无需引入人工扩散项。以二维结构为例给出了详细分析。

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