Dynamic effects of flame baroclinicity
Conference
·
OSTI ID:6476890
Presented herein is a numerical model for combustion of premixed gases in two-dimensional flow-field. The model is used to study some of the effects of flame-induced baroclinicity on the flame and the surrounding fluid. Two examples are chosen to illustrate this. In the steady state case, numerical calculations are compared to an exact analytical solution. The results show that the flame should be regarded as a source of vorticity as well as a source of volume and that flame-induced fluid rotation forms a major component of the resultant flow-field. In the unsteady case, numerical results reveal a new stabilizing phenomenon: baroclinicity has a damping effect on the growth rate of flame-front perturbations. A simple heuristic argument shows why this should be so. 10 refs., 6 figs.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48; AC03-76SF00098
- OSTI ID:
- 6476890
- Report Number(s):
- UCRL-100437; CONF-870868-2; ON: DE89008893
- Country of Publication:
- United States
- Language:
- English
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