Spectral methods for modeling supersonic chemically reacting flowfields

Implicit Methods for Computing Chemically Reacting Flow

Hyperspectral infrared imaging of HF(v, J) chemiluminescence and gain in chemically reacting flowfields.

This paper presents results from investigations of chemically reacting flowfields and optical gain profiles in HF chemical laser media by infrared hyperspectral imaging. Subsonic and supersonic chemiluminescent F+H2 reacting flowfields, produced in high-fluence microwave-driven reactors, were imaged at a series of wavelengths, 2.6-3.1 microm, by a low-order, spectrally scanning Fabry-Perot inte...

Approximate Stochastic Models for Chemically Reacting Systems

In the stochastic formulation of chemical reactions, the time evolution of the first M order statistical moments for the number of molecules of the different species involved is generally not closed, in the sense that they depend on moments of order higher than M. For analysis purposes, the time evolution of the first M order moments is often made to be closed by approximating the higher order ...

Solutions for models of chemically reacting mixtures

The mathematical modeling of chemically reacting mixtures is investigated. The governing equations, that may be split between conservation equations, thermochemistry and transport fluxes, are presented as well as typical simplifications often encountered in the literature. The hyperbolic-parabolic structure of the resulting system of partial differential equations is analyzed using symmetrizing...

Parallel studies for chemically reacting systems

Parallel computing code can be applied to solve chemically reacting systems. In a well stirred chemical system, the number of molecules for each species can be solved by implicit tau method, and the histogram of the method is used to compare with the exact simulation called SSA. In this report, the parallel code will be implemented in both SSA and implicit tau, with the discussion that how rand...