Adaptive streamline tracing for streamline simulation on irregular grids
| Main Authors: | Hægland, Håkon, Dahle, Helge, Eigestad, Geir Terje, Lie, Knut-Andreas, Aavatsmark, Ivar |
|---|---|
| Format: | Proceeding eJournal |
| Terbitan: |
, 2006
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| Online Access: |
https://zenodo.org/record/3536690 |
Daftar Isi:
- Streamline methods have shown to be effective for reservoir simulation. Streamline simulation relies on an efficient an accurate calculation of streamlines and time-of-flight coordinates (TOF). Streamlines are commonly computed on a cell-by-cell basis using a flux interpolation in the semi-analytical Pollock's method. An alternative method is a grid-cell corner-point velocity interpolation, which is able to reproduce uniform flow in three spatial dimensions. For this method numerical integration of streamlines is required. The shape of streamlines are affected by a change in velocity direction over a cell, whereas TOF is sensitive to variation in the absolute value of the velocity. Hence, an adaptive method should be used to control the error in the numerical integration of the velocity. In this work, we propose a method for adaptive step size selection for numerical integration of streamlines, and compare it with existing methods.
- Presenters: name: Hægland, Håkon affiliation: University of Bergen