Journal ArticleDOI
Numerical investigations of transitional H2/N2 jet diffusion flames
TLDR
In this paper, a numerical method for accurate simulation of the inner and outer vortex structures in transitional H 2 /N 2 jet diffusion flames is presented, incorporating buoyancy, a simple one-step chemistry model, coefficients that depend on temperature and species concentration.Abstract:
A numerical method for accurate simulation of the time and spatial characteristics of the inner and outer vortex structures in transitional H 2 /N 2 jet diffusion flames is presented. The direct numerical simulation, incorporating buoyancy, a simple one-step chemistry model, coefficients that depend on temperature and species concentration, is described in detail. The species and energy equations are simplified by introducing two conserved scalars β 1 and β 2 and by assuming that the Lewis number of the flow is equal to unity. An implicit, third-order-accurate, upwind numerical scheme having very low numerical diffusion is used to simulate the inner small-scale structures and the outer large-scale structures simultaneouslyread more
Citations
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Journal ArticleDOI
Dynamics of flame/vortex interactions
TL;DR: A review of flame/vortex interactions with flames can be found in this article, where progress in theoretical, numerical, and experimental investigations on flame/Vortex interactions is reviewed.
Journal ArticleDOI
A Semi-implicit Numerical Scheme for Reacting Flow
TL;DR: An additive semi-implicit projection scheme for the simulation of unsteady combustion in two dimensions is constructed in this paper, which relies on a zero-Mach number formulation of the compressible conservation equations with detailed chemistry.
Journal ArticleDOI
Role of Flow Visualization in the Development of UNICORN
W. M. Roquemore,V. R. Katta +1 more
TL;DR: It is demonstrated that the judicious use of a well-validated simulation in conjunction with laser based diagnostics is an effective way of understanding complex combusting flows.
Journal ArticleDOI
Numerical Modeling of Laminar Flames with Detailed Kinetics Based on the Operator-Splitting Method
TL;DR: In this paper, a new computational code called laminarSMOKE is proposed for the simulation of laminars in complex, multidimensional geometries with detailed kinetic properties.
Journal ArticleDOI
Schlieren analysis of an oscillating gas-jet diffusion flame
Burt W. Albers,Ajay K. Agrawal +1 more
TL;DR: In this paper, a flickering gas-jet diffusion flame was investigated using quantitative rainbow schlieren deflectometry, where the fuel was pure hydrogen exiting from a burner tube at 43 m/s.
References
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TL;DR: In this paper, a convective modeling procedure is presented which avoids the stability problems of central differencing while remaining free of the inaccuracies of numerical diffusion associated with upstream differencings.
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A Numerical Method for Solving Incompressible Viscous Flow Problems
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