Discussion of Different Model Approaches for the Flow Behavior of Ice


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Angelika.Humbert [ at ] awi.de

Abstract

Ice of Antarctic ice shelves is assumed to behave on long-term as an incompressible viscous fluid, which is dominated on short time scales by the elastic response. Hence, a viscoelastic material model is required. The thermodynamic pressure is treated differently in elastic and viscous models. For small deformations, the elastic isometric stress for ν → 0.5 gives similar results to those solving for pressure in an incompressible laminar flow model. A viscous model, in which the thermodynamic pressure is approximated by an elastic isometric stress, can be easily extended to viscoelasticity.



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Eprint ID
45857
DOI 10.1002/pamm.201610145

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Christmann, J. , Rückamp, M. , Müller, R. and Humbert, A. (2016): Discussion of Different Model Approaches for the Flow Behavior of Ice , Proceedings in Applied Mathematics and Mechanics, 16 (1), pp. 313-314 . doi: 10.1002/pamm.201610145


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