An axi-symmetric infinite element for transient radial flow problems
✍ Scribed by Khalili, N.; Valliappan, S.; Yazdchi, M.
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 159 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0363-9061
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✦ Synopsis
The formulation of an axi-symmetric in"nite element for transient analysis of #ow problems in unbounded domain is presented. The theoretical basis as well as the implementation of the element is discussed, and the element decay function is derived using the analytical solution of a one-dimensional axially symmetric con"guration. The form of decay within the element is described as a function of both time and space, and thus the hydraulic head distribution in the far "eld is simulated rigorously. The accuracy and the e$ciency of the proposed element are demonstrated through several numerical examples in in"nite media. In general, it is shown that using the present in"nite element transient #ow problems in unbounded domains can be simulated e!ectively.