Numerical simulation of the interaction of a flame with a Karman vortex street
Conference
·
OSTI ID:5295034
A numerical study of a simplified flow configuration modeling the interaction of a laminar flame with a Karman vortex street is presented. The flow is assumed to be inviscid and the flame is modeled as a line source of specific volume with a burning speed which depends on the local curvature. Complete flow fields are calculated as a function of time for various values of the Markstein parameter, vortex shedding frequency, separation and strength. Rho/sub u//rho/sub b/ was 4.0 and the velocity far upstream was set at 60 cm/s for all cases. The essential features of the interaction of a flame with a vortex street are demonstrated, including a deflection of the vortex street ahead of the flame, a development of a flame brush, the deflection of the mean flame position, and the increase in the mean rate of consumption of reactants when the vortices are introduced.
- Research Organization:
- California Univ., Berkeley (USA). Lawrence Berkeley Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5295034
- Report Number(s):
- LBL-10679; CONF-800408-4
- Country of Publication:
- United States
- Language:
- English
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