On the Formation of Nitrogen Oxides During the Combustion of ...

NOMENCLATURE
g Gravitational force m s −2
h Specific enthalpy J kg −1
h 0 Standard enthalpy of formation (at T 0 ) J kg −1
∆h v Specific enthalpy of vaporization J kg −1
I Integral of source term (cf. ˙ω) g cm −3 s −1
I Intensity J, W
J
Counter for molecules (integer)
k
Rate coefficient for reaction
k Vaporization or burning rate m 2 s −1
L
Total number of reaction equations
L, l Length m
M Molar mass kg mol −1
M (Third body) Molecule
m Mass kg
m Slope of function (of first order curve fit)
ṁ Mass flow kg s −1
ṁ ′′ Mass flux kg m −2 s −1
ṁ ′′′ Volumetric mass production rate kg m −3 s −1
N Molar density mol m −3
N Number
n
Counter (integer)
n Molecular density (also: species density) m −3
n
Normal vector
P A Production flux of species A kg m −3 s −1
P AB Production flux of species A due to species B kg m −3 s −1
p Pressure Pa, bar
Q Heat J
˙Q Heat flow (also: heat transfer rate) J s −1 , W
˙q Specific heat flux W m −2
˙q v Volumetric energy generation rate W m −3
R
Relative quenching efficiency
R
Response or recovery factor
r
Interaction coefficient of species prod./con.
r Radial distance (in spherical and cylindrical COS) m
r Radius m
S (Inter-droplet) Distance m
S
Non-dimensional droplet separation
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