lir_achem.chemistry_coefficients

Functions

alpha_1(Tn)

N2+ + Ne -> N2

alpha_2(Tn)

O2+ + Ne -> O + O

alpha_3(Tn)

NO+ + Ne -> N + O

alpha_4(Tn)

O4+ + e -> 2 O2

alpha_5()

X- + e -> products

alpha_i()

Recombination of each positive ion to the negative ones

beta_1(O2, N2, Tn)

e -> O2-

delta_1(N2, Tn)

O^+ (4S) -> NO+

delta_10(NO, Tn)

N+ -> N2+

delta_11(O2, Tn)

N2+ -> O2+

delta_12(O, NO, Tn)

N2+ -> NO+

delta_13(O, Tn)

N2+ -> O+(4S)

delta_14(NO, N)

O2+ -> NO+

delta_15(O2, N2, Tn)

O2+ -> O4+

delta_16(O2, N2, O, Tn)

O4+ -> O2+

delta_17(N2, O2, H2O, Tn)

O2+ -> Y+

delta_18(N2, O2, Tn)

Y+ -> O2+

delta_19(H2O, N2, O2)

O4+ -> Y+

delta_2(O2, Tn)

O^+ (4S) -> 0_2+

delta_20(O2, N2, H2O, Tn)

NO+ -> Y+

delta_21(O2, N2, Tn)

Y+ -> NO+

delta_22()

X- -> O2-

delta_23()

O2- -> X-

delta_3(N2, Tn)

O+(2P) -> N2+

delta_4(O2, Tn)

O+(2P) -> N2+

delta_5(Tn, N2)

O^+ (2D)) -> N2+

delta_6(Tn, O2)

O^+ (2D)) -> O2+

delta_7(O2)

N+ -> O2+

delta_8(O2, NO, Tn)

N+ -> NO+

delta_9(O, O2)

N+ -> O+(4S)

epsilon_1(O)

O^+ (2P)) -> O^+ (4S)

epsilon_1p(Tn)

O^+ (2P)) -> O^+ (4S)

epsilon_2()

O^+ (2P)) -> O^+ (4S)

epsilon_2p(Tn)

O^+ (2P)) -> O^+ (4S)

epsilon_3(O)

O^+ (2D)) -> O^+ (4S)

epsilon_3p(Tn)

O^+ (2D)) -> O^+ (4S)

gamma_1(N2, O2, O, Tn)

O2- -> e

gamma_2()

X- -> e

get_all_coefficients(n_here, e_here)

Get all the reactions coefficients in order
lir_achem.chemistry_coefficients.delta_1(N2, Tn)[source]

O^+ (4S) -> NO+

This is the reaction rate of the reaction 1. in Table 6 of Pavlov, 2014

Parameters:

  • N2 – N_2 neutral density (cm^-3)

  • Tn – Neutral temperature (K)

lir_achem.chemistry_coefficients.delta_2(O2, Tn)[source]

O^+ (4S) -> 0_2+

This is the reaction rate of the reaction 2. in Table 6 of Pavlov, 2014

Parameters:

  • O2 – O_2 neutral density (cm^-3)

  • Tn – Neutral temperature (K)

lir_achem.chemistry_coefficients.epsilon_1(O)[source]

O^+ (2P)) -> O^+ (4S)

This is the reaction rate of the reactionS 3, 6 in Table 6 of Pavlov, 2014

Parameters:

O – O neutral density (cm^-3)

lir_achem.chemistry_coefficients.epsilon_1p(Tn)[source]

O^+ (2P)) -> O^+ (4S)

This is the reaction rate of the reaction 8 in Table 6 of Pavlov, 2014 It is considered separately to the previous one because it doesn’t involve neutral densities

Parameters:

Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.delta_3(N2, Tn)[source]

O+(2P) -> N2+

This is the reaction rate of the reaction 4 in Table 6 of Pavlov, 2014

Parameters:

  • N2 – Density of N2 (cm^-3)

  • Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.delta_4(O2, Tn)[source]

O+(2P) -> N2+

This is the reaction rate of the reaction 5 in Table 6 of Pavlov, 2014

Parameters:

  • O2 – Density of O2 (cm^-3)

  • Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.epsilon_2()[source]

O^+ (2P)) -> O^+ (4S)

This is the reaction rate of the reaction 7 in Table 6 of Pavlov, 2014

lir_achem.chemistry_coefficients.epsilon_2p(Tn)[source]

O^+ (2P)) -> O^+ (4S)

This is the reaction rate of the reaction 9 in Table 6 of Pavlov, 2014

Parameters:

Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.epsilon_3(O)[source]

O^+ (2D)) -> O^+ (4S)

This is the reaction rate of the reaction 10 in Table 6 of Pavlov, 2014

Parameters:

O – Density of O (cm-3)

lir_achem.chemistry_coefficients.epsilon_3p(Tn)[source]

O^+ (2D)) -> O^+ (4S)

This is the reaction rate of the reaction 13 in Table 6 of Pavlov, 2014

Parameters:

Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.delta_5(Tn, N2)[source]

O^+ (2D)) -> N2+

This is the reaction rate of the reaction 11 in Table 6 of Pavlov, 2014

Parameters:

  • Tn – Neutral temperature (in K)

  • N2 – N2 density (in cm-3)

lir_achem.chemistry_coefficients.delta_6(Tn, O2)[source]

O^+ (2D)) -> O2+

This is the reaction rate of the reaction 12 in Table 6 of Pavlov, 2014

Parameters:

  • Tn – Neutral temperature (in K)

  • O2 – O2 density (in cm-3)

lir_achem.chemistry_coefficients.delta_7(O2)[source]

N+ -> O2+

This is the reaction rate of the reactions 14 and 15 in Table 6 of Pavlov, 2014

Parameters:

O2 – O2 density (in cm-3)

lir_achem.chemistry_coefficients.delta_8(O2, NO, Tn)[source]

N+ -> NO+

This is the reaction rate of the reactions 16, 17 and 20 in Table 6 of Pavlov, 2014

Parameters:

  • O2 – O2 density (in cm-3)

  • NO – NO density (in cm-3)

  • Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.delta_9(O, O2)[source]

N+ -> O+(4S)

This is the reaction rate of the reactions 18 and 19 in Table 6 of Pavlov, 2014

Parameters:

  • O2 – O2 density (in cm-3)

  • O – O density (in cm-3)

lir_achem.chemistry_coefficients.delta_10(NO, Tn)[source]

N+ -> N2+

This is the reaction rate of the reaction 21 in Table 6 of Pavlov, 2014

Parameters:

  • NO – NO density (in cm-3)

  • Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.alpha_1(Tn)[source]

N2+ + Ne -> N2

This is the reaction rate of the reaction 22 in Table 6 of Pavlov, 2014

Parameters:

Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.delta_11(O2, Tn)[source]

N2+ -> O2+

This is the reaction rate of the reaction 23 in Table 6 of Pavlov, 2014

Parameters:

  • Tn – Neutral temperature (in K)

  • O2 – O2 density (in cm-3)

lir_achem.chemistry_coefficients.delta_12(O, NO, Tn)[source]

N2+ -> NO+

This is the reaction rate of the reactions 24 and 26 in Table 6 of Pavlov, 2014

Parameters:

  • Tn – Neutral temperature (in K)

  • O – O density (in cm-3)

  • NO – NO density (in cm-3)

lir_achem.chemistry_coefficients.delta_13(O, Tn)[source]

N2+ -> O+(4S)

This is the reaction rate of the reaction 25 in Table 6 of Pavlov, 2014

Parameters:

  • Tn – Neutral temperature (in K)

  • O – O density (in cm-3)

lir_achem.chemistry_coefficients.alpha_2(Tn)[source]

O2+ + Ne -> O + O

This is the reaction rate of the reaction 27 in Table 6 of Pavlov, 2014

Parameters:

  • Tn – Neutral temperature (in K)

  • O – O density (in cm-3)

lir_achem.chemistry_coefficients.delta_14(NO, N)[source]

O2+ -> NO+

This is the reaction rate of the reactions 28 and 29 in Table 6 of Pavlov, 2014

Parameters:

  • NO – NO density (in cm-3)

  • N – N density (in cm-3)

lir_achem.chemistry_coefficients.alpha_3(Tn)[source]

NO+ + Ne -> N + O

This is the reaction rate of the reaction 30 in Table 6 of Pavlov, 2014

Parameters:

Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.delta_15(O2, N2, Tn)[source]

O2+ -> O4+

This is the reaction rate of the reaction 36 in Table 6 of Pavlov, 2014

Parameters:

  • O2 – O2 density (in cm-3)

  • N2 – N2 density (in cm-3)

  • Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.delta_16(O2, N2, O, Tn)[source]

O4+ -> O2+

This is the reaction rate of the reactions 37 and 44 in Table 6 of Pavlov, 2014

Parameters:

  • O2 – O2 density (in cm-3)

  • N2 – N2 density (in cm-3)

  • Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.delta_17(N2, O2, H2O, Tn)[source]

O2+ -> Y+

This is the reaction rate of the reactions 38, 39 and 41 in Table 6 of Pavlov, 2014

Parameters:

  • O2 – O2 density (in cm-3)

  • N2 – N2 density (in cm-3)

  • H2O – H2O density (in cm-3)

  • Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.delta_18(N2, O2, Tn)[source]

Y+ -> O2+

This is the reaction rate of the reactions 40 and 42 in Table 6 of Pavlov, 2014

Parameters:

  • O2 – O2 density (in cm-3)

  • N2 – N2 density (in cm-3)

  • Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.delta_19(H2O, N2, O2)[source]

O4+ -> Y+

This is the reaction rate of the reactions 43 and 46 in Table 6 of Pavlov, 2014

Parameters:

  • O2 – O2 density (in cm-3)

  • N2 – N2 density (in cm-3)

  • H2O – H2O density (in cm-3)

lir_achem.chemistry_coefficients.delta_20(O2, N2, H2O, Tn)[source]

NO+ -> Y+

This is the reaction rate of the reactions 48, 49, 53, 55 in Table 6 of Pavlov, 2014 All three-bodies reaction involving CO2 are neglected, as they should negligible in front of those involving N2 and 02 From Rowe & Mitra, 1974

Parameters:

  • O2 – O2 density (in cm-3)

  • N2 – N2 density (in cm-3)

  • H2O – H2O density (in cm-3)

  • Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.delta_21(O2, N2, Tn)[source]

Y+ -> NO+

This is the reaction rate of the reactions 50, 52, 54 and 56 in Table 6 of Pavlov, 2014

Parameters:

  • O2 – O2 density (in cm-3)

  • N2 – N2 density (in cm-3)

  • Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.alpha_4(Tn)[source]

O4+ + e -> 2 O2

This is the reaction rate of the reaction 110 in Table 6 of Pavlov, 2014

Parameters:

Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.beta_1(O2, N2, Tn)[source]

e -> O2-

This is the reaction rate of the reactions 1 and 2 of Table 10 of Pavlov, 2014

Parameters:

  • O2 – O2 density (in cm-3)

  • N2 – N2 density (in cm-3)

  • Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.gamma_1(N2, O2, O, Tn)[source]

O2- -> e

This is the reaction rate of the reactions 26, 27, 31 of Table 10 of Pavlov, 2014

Parameters:

  • O2 – O2 density (in cm-3)

  • N2 – N2 density (in cm-3)

  • O – O density (in cm-3)

  • Tn – Neutral temperature (in K)

lir_achem.chemistry_coefficients.delta_22()[source]

X- -> O2-

This reaction is neglected for the moment (Mitra & Rowe, 1972)

lir_achem.chemistry_coefficients.delta_23()[source]

O2- -> X-

From Mitra & Rowe, 1972

lir_achem.chemistry_coefficients.gamma_2()[source]

X- -> e

From Mitra & Rowe, 1972

lir_achem.chemistry_coefficients.alpha_5()[source]

X- + e -> products

From Mitra & Rowe, 1972

lir_achem.chemistry_coefficients.alpha_i()[source]

Recombination of each positive ion to the negative ones

From Mitra & Rowe, 1972

lir_achem.chemistry_coefficients.get_all_coefficients(n_here, e_here)[source]

Get all the reactions coefficients in order

Parameters:

  • n_here – Neutrals class instance

  • e_here – Electrons class instance

Returns:

Array with all the coefficients. Ordered from alpha_1 to alpha_5, beta_1, gamma_1, gamma_2 and delta_1 to delta_23, epsilon_1, epsilon_1p, epsilon_2, epsilon_2p, epsilon_3, epsilon_3p