Turbulent combustion in open and closed vessels

Journal Article · Fri Jun 01 04:00:00 EDT 1984 · J. Comput. Phys.; (United States)

DOI:https://doi.org/10.1016/0021-9991(84)90126-8· OSTI ID:7022973

Sethian, J

We present a numerical technique to approximate the solution of a simplified model of turbulent combustion. The method, which is particularly suited for flows at high Reynolds number, uses random vortex element techniques coupled to a flame propagation algorithm based on Huyghens' principle. We use this technique to analyze combustion in open and closed vessels. In the first experiment, we model a flame propagating in a swirling, viscous flow inside a closed square. Our results show the growth and development of counterrotating turbulent eddies and their effect on the flame. In the second experiment, we model turbulent combustion within a channel, in which flow enters through a slit at one end. Results detail the effects of exothermicity and viscosity on the speed and shape of the burning front.

• Research Organization: Department of Mathematics and Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 7022973
• Journal Information: J. Comput. Phys.; (United States), Journal Name: J. Comput. Phys.; (United States) Vol. 54:3; ISSN JCTPA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ADVECTION
ALGORITHMS
CHEMICAL REACTIONS
COMBUSTION
DIFFERENTIAL EQUATIONS
DIFFUSION
EQUATIONS
EQUATIONS OF MOTION
FLAME PROPAGATION
FLAMES
FLUID FLOW
MASS TRANSFER
MATHEMATICAL LOGIC
NUMERICAL SOLUTION
OXIDATION
PARTIAL DIFFERENTIAL EQUATIONS
REYNOLDS NUMBER
THERMOCHEMICAL PROCESSES
TURBULENT FLOW
VISCOSITY
VISCOUS FLOW