A combustion model for incompressible flows

Thesis/Dissertation · Tue Jan 01 04:00:00 EST 1991

OSTI ID:5383556

Calzada, M E

Flow of a pre-mixed, reactive, incompressible, viscous fluid was studied using a combination of vortex methods and a flame propagation algorithm based on Huygens principle. The random vortex methods are lagrangian methods used to resolve the motion of incompressible fluids regulated by the Navier-Stokes equations. They are best suited for flows at high Reynolds numbers. Detailed description of the vortex blobs, and vortex sheets methods is given together with the presentation of a hybrid vortex method that relates the two. The combustion part of the problem is modeled by a variation of the SLIC (Simple Line Interface Calculation) algorithm, that involves the use of a flame dictionary which contains flame speeds and preheat thicknesses. The combined algorithms are tested on a cold flat plate with different free stream velocities. The numerical results show the effects of cold boundaries, turbulence, and exothermicity on the burning process.

• Research Organization: Tulane Univ., New Orleans, LA (United States)
• OSTI ID: 5383556
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800 -- Combustion
Pyrolysis
& High-Temperature Chemistry
42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
ALGORITHMS
CHEMICAL REACTION KINETICS
COMBUSTION KINETICS
DIFFERENTIAL EQUATIONS
EQUATIONS
FLAME PROPAGATION
FLOW MODELS
FLUID FLOW
INCOMPRESSIBLE FLOW
KINETICS
MATHEMATICAL LOGIC
MATHEMATICAL MODELS
NAVIER-STOKES EQUATIONS
NUMERICAL SOLUTION
PARTIAL DIFFERENTIAL EQUATIONS
REACTION KINETICS
REYNOLDS NUMBER
VISCOUS FLOW