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Modeling of non-equilibrium phenomena in expanding flows by means of a collisional-radiative model
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10.1063/1.4810787
/content/aip/journal/pop/20/7/10.1063/1.4810787
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/7/10.1063/1.4810787

Figures

Image of FIG. 1.
FIG. 1.

Normalized area distribution of the nozzle of the VKI minitorch facility (throat at = 0.029 m).

Image of FIG. 2.
FIG. 2.

Pressure evolution along the nozzle axis.

Image of FIG. 3.
FIG. 3.

Temperature evolution along the nozzle axis.

Image of FIG. 4.
FIG. 4.

N and O atoms: comparison of the non-equilibrium (lines with symbols) and equilibrium (dashed lines) population distribution of the electronic levels at the nozzle throat ( = 0.029 m, ).

Image of FIG. 5.
FIG. 5.

N and O atoms: comparison of the non-equilibrium (lines with symbols) and equilibrium (dashed lines) population distribution of the electronic levels at the nozzle outlet ( = 0.042 m, ).

Image of FIG. 6.
FIG. 6.

molecule: comparison of the non-equilibrium (lines with symbols) and equilibrium (dashed lines) populations of the electronic levels.

Image of FIG. 7.
FIG. 7.

molecule: comparison of the non-equilibrium (lines with symbols) and equilibrium (dashed lines) populations of the electronic levels.

Image of FIG. 8.
FIG. 8.

NO molecule: comparison of the non-equilibrium (lines with symbols) and equilibrium (dashed lines) populations of the electronic levels.

Image of FIG. 9.
FIG. 9.

N and O atoms: population distribution of the electronic levels at the nozzle outlet in the case of optically thick (lines with symbols) and optically thin medium (dotted lines). The dashed lines indicate the equilibrium population distributions for the optically thick medium case.

Image of FIG. 10.
FIG. 10.

Comparison of the free-electron temperature and velocity for the case of optically thick (lines) and optically thin medium (dashed lines).

Image of FIG. 11.
FIG. 11.

molecule: comparison of the mass fraction for Candler (lines) and Macheret's (dashed lines) models for chemistry-vibration coupling.

Image of FIG. 12.
FIG. 12.

and NO molecules: comparison of the non-equilibrium populations of the electronic levels for Candler (symbols) and Macheret's (lines) models for chemistry-vibration coupling.

Tables

Generic image for table
Table I.

Electronic levels of neutral molecules.

Generic image for table
Table II.

Electronic levels of charged molecules.

Generic image for table
Table III.

Outlet conditions ( = 0.042 m).

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/content/aip/journal/pop/20/7/10.1063/1.4810787
2013-07-10
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Modeling of non-equilibrium phenomena in expanding flows by means of a collisional-radiative model
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/7/10.1063/1.4810787
10.1063/1.4810787
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