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A new formulation of Signorini's type for seepage problems with free surfaces

โœ Scribed by H. Zheng; D. F. Liu; C. F. Lee; L. G. Tham

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
239 KB
Volume
64
Category
Article
ISSN
0029-5981

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โœฆ Synopsis

A new variational inequality formulation for seepage problems with free surfaces is presented, in which a boundary condition of Signorini's type is prescribed over the potential seepage surfaces. This makes the singularity of seepage points eliminated and the location of seepage points determined easily. Compared to other variational formulations, the proposed formulation can effectively overcome the mesh dependency and significantly improve the numerical stability. A very challenging engineering example with complicated geometry and strong inhomogeneity is investigated in detail. Copyright

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