Advanced FEM for free surface flow with application to landslides
Advanced FEM for free surface flow with application to landslides
复制标题
先进的自由表面流有限元法适用于山体滑坡
DOI:
10.1002/pamm.201610227
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发表时间:
2016
期刊:
影响因子:
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通讯作者:
D. Dinkler
中科院分区:
文献类型:
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作者:
M. Schauer;S. Reinstädler;D. Dinkler
An advanced space‐time finite element method is presented to investigate movements of landslides and their interaction with flexible structures. The mechanics of liquefied soil is described by Navier‐Stokes‐equations for visco‐plastic non‐newtonian fluid. Likewise the fluid the kinematics of the structure is described by velocities, taking large rotations into account. This leads to a monolithic fluid‐structure interaction approach considering the multi‐field problem as a whole. The discretized model equations are assembled in a single set of algebraic equations, which are solved by applying Newton‐Raphson scheme. Free surface motion of landslide is described by the level‐set method. To reduce computational effort the fragmented finite element method is used, where only active finite elements are evaluated. A pde‐based extrapolation of the velocity‐field is applied to ensure an accurate transport of distance function, which defines the profile in space and time of the free surfaces. (© 2016 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)
DOI:
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发表时间:
2004
期刊:
影响因子:
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作者:
T. Tezduyar;M. Senga
通讯作者:
M. Senga
DOI:
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发表时间:
2015
期刊:
影响因子:
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作者:
Sven Reinstädler
通讯作者:
Sven Reinstädler
DOI:
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发表时间:
2001
期刊:
影响因子:
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作者:
D. Peric;S. Slijepcević
通讯作者:
S. Slijepcević