| Abstract: | A semianalytical particle tracking method was developed for use with velocities generated from block-centered finite-difference ground-water flow models. Based on the assumption that each directional velocity component varies linearly within a grid cell in its own coordinate directions, the method allows an analytical expression to be obtained describing the flow path within an individual grid cell. Given the intitial position of a particle anywhere in a cell, the coordinates of any other point along its path line within the cell, and the time of travel between them, can be computed directly. For steady-state systems, the exit point for a particle entering a cell at any arbitrary location can be computed in a single step. By following the particle as it moves from cell to cell, this method can be used to trace the path of a particle through any multidimensional flow field generated from a block-centered finite-difference flow model. -Author |
| Genre: | Article |
| ProdID: | 70013303 |
| Citation Author: | Pollock, D. W. |
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| Citation End Page: | 750 |
| Citation Issue: | 6 |
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| Citation Language: | English |
| Citation Larger Work Title: | Ground Water |
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| Citation Number Of Pages: | 8 |
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| Citation Search Results Text: | Semianalytical computation of path lines for finite-difference models; 1988; Article; Journal; Ground Water; Pollock, D. W. |
| Citation Start Page: | 743 |
| Citation Volume: | 26 |
| Citation Year: | 1988 |
| Type: | citation/reference |
| Text: | Semianalytical computation of path lines for finite-difference models; 1988; Article; Journal; Ground Water; Pollock, D. W. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Fri, 1 Jan 1988 00:00 -0600 |
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