Journal ArticleDOI
Direct numerical simulations of a reacting mixing layer with chemical heat release
Reads0
Chats0
TLDR
In this paper, the coupling between chemical heat release and fluid dynamics was studied by direct numerical simulations of a chemically reacting mixing layer with heat release, and it was shown that the rate of chemical product formed, the thickness of the mixing layer, and the amount of mass entrained into the layer all decrease with increasing rates of heat release.Abstract:
In order to study the coupling between chemical heat release and fluid dynamics, direct numerical simulations of a chemically reacting mixing layer with heat release are performed The fully compressible equations as well as an approximate set of equations that is asymptotically valid for low-Mach-number flows are treated These latter equations have the computational advantage that high-frequency acoustic waves have been filtered out, allowing much larger time steps to be taken in the numerical solution procedure A detailed derivation of these equations along with an outline of the numerical solution technique is given Simulation results indicate that the rate of chemical product formed, the thickness of the mixing layer, and the amount of mass entrained into the layer all decrease with increasing rates of heat releaseread more
Citations
More filters
Book
Spectral Methods in Fluid Dynamics
M. Y. Hussaini,Thomas A. Zang +1 more
TL;DR: Spectral methods have been widely used in simulation of stability, transition, and turbulence as discussed by the authors, and their applications to both compressible and incompressible flows, to viscous as well as inviscid flows, and also to chemically reacting flows are surveyed.
Journal ArticleDOI
On the Adequacy of Certain Experimental Observables as Measurements of Flame Burning Rate
TL;DR: In this paper, the authors investigated the utility of several experimental observables as measurements of local burning and heat release rates for a premixed stoichiometric N2-diluted methane-air flame in two-dimensional unsteady vortical flow.
Journal ArticleDOI
Model-free simulations of turbulent reactive flows
TL;DR: The current computational methods for solving transport equations of turbulent reacting single-phase flows are critically reviewed, with primary attention given to those methods that lead to model-free simulations.
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
Numerical simulation of laminar reacting flows with complex chemistry
Marcus S. Day,John B. Bell +1 more
TL;DR: In this paper, an adaptive algorithm for low-Mach number reacting flows with complex chemistry is presented, which uses a form of the low Mach number equations that discretely conserves both mass and energy.
References
More filters
MonographDOI
Numerical analysis of spectral methods : theory and applications
David Gottlieb,Steven A. Orszag +1 more
TL;DR: Spectral Methods Survey of Approximation Theory Review of Convergence Theory Algebraic Stability Spectral Methods Using Fourier Series Applications of algebraic stability analysis Constant Coefficient Hyperbolic Equations Time Differencing Efficient Implementation of Spectral Method as discussed by the authors.
Journal ArticleDOI
Vortex pairing : the mechanism of turbulent mixing-layer growth at moderate Reynolds number
C. D. Winant,F. K. Browand +1 more
TL;DR: A mixing layer is formed by bringing two streams of water, moving at different velocities, together in a lucite-walled channel as mentioned in this paper, where dye is injected between the two streams just before they are brought together, marking the vorticitycarrying fluid.
Computational methods for fluid flow
Roger Peyret,Thomas D. Taylor +1 more
TL;DR: In this article, the authors present a method for numerique numeriques for programmation with differences between finies and viscosite reference records. But the method is not presented in detail.
Book
Numerical analysis of spectral methods
David Gottlieb,Steven A. Orszag +1 more
TL;DR: In this article, a mathematical analysis of spectral methods for mixed initial-boundary value problems is given, and the development of a mathematical theory that explains why spectral methods work and how well they work.
Journal ArticleDOI
On the inviscid instability of the hyperbolictangent velocity profile
TL;DR: In this paper, the Rayleigh stability equation of inviscid linearized stability theory was integrated numerically for amplified disturbances of the hyperbolic-tangent velocity profile.
Related Papers (5)
The derivation and numerical solution of the equations for zero mach number combustion
Andfrew Majda,James A. Sethian +1 more
On density effects and large structure in turbulent mixing layers
Garry L. Brown,Anatol Roshko +1 more