Abstract
The flux modification of Harten's second-order TVD scheme, coupled with implicit iteration-analysis algorithm, is employed to overcome the computational stiffness of k-ε turbulence model. Internal flow field of an axisymmetric nozzle and internal-external flow field of a two-dimensional nozzle are simulated to confirm the improvement of calculation efficiency by the above methods when using improved multigrid strategy. The calculation results are compared with experimental data.
| Original language | English |
|---|---|
| Pages (from-to) | 646-652 |
| Number of pages | 7 |
| Journal | Lixue Xuebao/Chinese Journal of Theoretical and Applied Mechanics |
| Volume | 43 |
| Issue number | 4 |
| State | Published - Jul 2011 |
| Externally published | Yes |
Keywords
- Multigrid
- Numerical simulation
- Stiffness
- Two equation turbulence model
- Two-dimensional nozzle
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