Abstract
The linear stability analysis of the unfactored upwind relaxationsweeping (URS) algorithm for 3D flow field calculations has been carried out and it is shown that the URS algorithm is unconditionally stable. The algorithm is independent of the global sweeping direction selection. However, choosing the direction with relatively low variable gradient as the global sweeping direction results in a higher degree of stability. Three-dimensional compressible Euler equations are solved by using the implicit URS algorithm to study internal flows of a non-axisymmetric nozzle with a circular-to-rectangular transition duct and complex shock wave structures for a 3D channel flow. The efficiency and robustness of the URS algorithm has been demonstrated.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 425-433 |
| Number of pages | 9 |
| Journal | Journal of Computational Physics |
| Volume | 125 |
| Issue number | 2 |
| DOIs | |
| State | Published - May 1996 |
| Externally published | Yes |
ASJC Scopus subject areas
- Numerical Analysis
- Modeling and Simulation
- Physics and Astronomy (miscellaneous)
- Physics and Astronomy(all)
- Computer Science Applications
- Computational Mathematics
- Applied Mathematics
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Zha, G. C., & Bilgen, E. (1996). Numerical study of three-dimensional flows using unfactored upwind-relaxation sweeping algorithm. Journal of Computational Physics, 125(2), 425-433. https://doi.org/10.1006/jcph.1996.0104