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    FLUENT 4.4

    NOx Module (2.1) Users Guide

    Second Edition, June 1997

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    NO

    NO

    N2

    Fuel Nitrogen Nitrogen Intermediates

    O 2

    oxidat

    ion

    reduction

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    Fuel Nitrogen

    NO

    2: NON

    2

    1:O 2

    oxidat

    ion

    reduction

    HCN

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    Fuel Nitrogen

    NO

    2: NON

    2

    1:O 2

    oxidat

    ion

    reduction

    HCN

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    HCN NO

    Char N

    Volatile N

    2: NO

    3: Char

    N2

    1: O2 N2

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    HCN NO

    Char N

    Volatile N

    2: NO

    3: Char

    N2

    1: O2 N2

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    Methane, 80 m/s, 300K

    Air, 0.5 m/s, 300K Wall: 300K

    1.8 m

    0.2

    25m

    0.0

    05m

    CL

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    0.00E+00

    Aug 15 1996

    Fluent 4.41

    Fluent Inc.

    Gas Combustion - Effect of Radiation

    No-Mf

    Max = 4.937E-04 Min = 0.000E+00

    4.94E-04

    4.77E-04

    4.61E-04

    4.44E-04

    4.28E-04

    4.11E-04

    3.95E-043.78E-04

    3.62E-04

    3.46E-04

    3.29E-04

    3.13E-04

    2.96E-04

    2.80E-04

    2.63E-04

    2.47E-04

    2.30E-04

    2.14E-04

    1.97E-04

    1.81E-04

    1.65E-04

    1.48E-04

    1.32E-04

    1.15E-04

    9.87E-05

    8.23E-05

    6.58E-05

    4.94E-05

    3.29E-05

    1.65E-05

    Y

    XZ

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    0.00E+00

    Aug 15 1996

    Fluent 4.41

    Fluent Inc.

    Gas Combustion - Effect of Radiation

    No-Mf

    Max = 4.937E-04 Min = 0.000E+00

    4.94E-04

    4.77E-04

    4.61E-04

    4.44E-04

    4.28E-04

    4.11E-04

    3.95E-043.78E-04

    3.62E-04

    3.46E-04

    3.29E-04

    3.13E-04

    2.96E-04

    2.80E-04

    2.63E-04

    2.47E-04

    2.30E-04

    2.14E-04

    1.97E-04

    1.81E-04

    1.65E-04

    1.48E-04

    1.32E-04

    1.15E-04

    9.87E-05

    8.23E-05

    6.58E-05

    4.94E-05

    3.29E-05

    1.65E-05

    Y

    XZ

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    2.97E+02

    Aug 29 1996

    Fluent 4.41

    Fluent Inc.

    Gas Combustion - Effect of Radiation

    Temperature (K)

    Max = 2.128E+03 Min = 2.970E+02

    2.13E+03

    2.07E+03

    2.01E+03

    1.94E+03

    1.88E+031.82E+03

    1.76E+03

    1.70E+03

    1.64E+03

    1.58E+03

    1.52E+03

    1.46E+03

    1.40E+03

    1.33E+03

    1.27E+03

    1.21E+03

    1.15E+03

    1.09E+03

    1.03E+03

    9.68E+02

    9.07E+02

    8.46E+02

    7.85E+02

    7.24E+02

    6.63E+02

    6.02E+02

    5.41E+02

    4.80E+02

    4.19E+023.58E+02

    Y

    XZ

    0.00E+00

    Aug 15 1996

    Fluent 4.41

    Fluent Inc.

    Gas Combustion - Effect of Radiation

    Variance-Temp

    Max = 1.206E-01 Min = 0.000E+00

    1.21E-01

    1.17E-01

    1.13E-011.09E-01

    1.05E-01

    1.01E-01

    9.65E-02

    9.25E-02

    8.84E-02

    8.44E-02

    8.04E-02

    7.64E-02

    7.24E-02

    6.83E-02

    6.43E-02

    6.03E-02

    5.63E-02

    5.23E-02

    4.82E-02

    4.42E-02

    4.02E-02

    3.62E-02

    3.22E-02

    2.81E-02

    2.41E-02

    2.01E-02

    1.61E-02

    1.21E-02

    8.04E-03

    4.02E-03

    Y

    XZ

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    0.00E+00

    Aug 15 1996

    Fluent 4.41

    Fluent Inc.

    Gas Combustion - Effect of Radiation

    Production-Rate-No (Kg/M3/S)

    Max = 1.207E-03 Min = 0.000E+00

    1.21E-03

    1.17E-03

    1.13E-03

    1.09E-031.05E-03

    1.01E-03

    9.66E-04

    9.26E-04

    8.85E-04

    8.45E-04

    8.05E-04

    7.65E-04

    7.24E-04

    6.84E-04

    6.44E-04

    6.04E-04

    5.63E-04

    5.23E-04

    4.83E-04

    4.43E-04

    4.02E-04

    3.62E-04

    3.22E-04

    2.82E-04

    2.41E-04

    2.01E-04

    1.61E-04

    1.21E-048.05E-05

    4.02E-05

    Y

    XZ

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