Abstract
With the basis of gas explosion theory, high accuracy WENO scheme is adopted for numerical simulation of methane explosion in variable cross-section tube. Influence of variable cross-section tube on flame propagation of methane explosion is addressed. It is found that, variable cross-section tube results in decrease of the intensity of methane explosion. On this basis, the influence of obstacle, wall and three shock wave structure on re-initiation is analyzed. The results suggested that the shock reflection on the wall and collision of triple points can induce re-initiation. These conclusions provide valuable theoretical basis for prediction of methane explosion, safety assessment and prevention of fire and explosion.
| Original language | English |
|---|---|
| Pages (from-to) | 947-949 |
| Number of pages | 3 |
| Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| Volume | 29 |
| Issue number | 11 |
| Publication status | Published - Nov 2009 |
Keywords
- Methane explosion
- Numerical simulation
- Variable cross-section tube
- Weighted essentially non-oscillatory(WENO)