首页> 外文会议>International conference on port and ocean engineering under arctic conditions >AXIALLY SYMMETRIC SOLUTIONS OF SEA ICE DYNAMICS MODELS WITH ELASTIC-PLASTIC AND VISCOUS-PLASTIC RHEOLOGY
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AXIALLY SYMMETRIC SOLUTIONS OF SEA ICE DYNAMICS MODELS WITH ELASTIC-PLASTIC AND VISCOUS-PLASTIC RHEOLOGY

机译:具有弹塑性和黏塑性流变特性的海冰动力学模型的轴对称解

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Axially symmetric steady solutions of equations describing ice drift under the influence of cyclonic and anticyclonic wind vortex are constructed and analysed in cases when the ice has elastic-plastic rheology and viscous-plastic rheology. In both cases the solution consists of the ring where the ice is in the plastic state, and the inner kernel and outer ring where the ice stresses are located inside the yield curve. Natural boundary conditions in the origin, at the plastic ring boundaries and on the periphery of the outer ring are formulated. Elastic-plastic solutions satisfying boundary conditions are constructed and analysed in case of cyclonic and anticyclonic wind vortexes. V viscous-plastic solutions have singularity in the origin in case of anticyclonic wind. In case of cyclonic wind the ice thickness grows exponentially at the periphery of the outer ring and the angular velocity of ice drift tends to constant value.
机译:在冰具有弹塑性流变学和粘塑性流变学的情况下,构造并分析了描述旋风和反旋风涡旋影响下的冰漂移方程的轴对称稳态解。在这两种情况下,解均由冰处于可塑性状态的环和内应力与外环组成,其中冰应力位于屈服曲线内。在原点,塑料环边界和外环外围确定自然边界条件。在旋风和反旋风涡旋的情况下,构造并分析了满足边界条件的弹塑性解。 V粘塑性溶液在反旋风的情况下在起源上具有奇异性。在旋风的情况下,冰厚度在外圈的外围呈指数增长,并且冰漂移的角速度趋于恒定。

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