[skherad]

I am a PhD student (working on Internal Combustion Engines pollution). I am a new Foamer(I just read the user guide and run some tutorials).
Is there a soot model in OpenFoam?
Thanks

[hjasak]

No, there isn't one at the moment.

Regards,

Hrv

[niklas]

Depends on how you want to model it.
It can easily be done using the chemkin interface.

N

[skherad]

thanks
I think I need to read more .
saeid

[skherad]

I tried to use chem.inp and therm.dat (/applications/test/readCHEMKINIII/CHEMKINdata/) for soot modeling.
when runing a 2D case with dieselFoam I got this error:
((
--> FOAM FATAL ERROR : unknown specie A1C2H)2+ on line 1193
Valid species are :
.
.
.
))
1193 line in the chem.inp is as
A1C2H* + C2H2 = A1C2H)2 + H 1.80E+19 -1.67 18800. ! 760 Torr RRKM
and I think there is not A1C2H)2+ in it. I had the same problem in other cases.
what is the problem?
thank you
saeid

[skherad]

I tried to use chem.inp and therm.dat (/applications/test/readCHEMKINIII/CHEMKINdata/) for soot modeling.
when runing a 2D case with dieselFoam I got this error:
((
--> FOAM FATAL ERROR : unknown specie A1C2H)2+ on line 1193
Valid species are :
.
.
.
A1C2H>2
.
.
.
Function: chemkinReader::lex()
in file: chemistryReaders/chemkinReader/chemkinLexer.L at line: 1210.
))
1193 line in the chem.inp is as
A1C2H* + C2H2 = A1C2H)2 + H 1.80E+19 -1.67 18800. ! 760 Torr RRKM
and I think there is not A1C2H)2+ in it. I had the same problem in other cases.
what is the problem?
thank you
saeid

[khalid1059]

Hi Niklas, i m a new Foamer and i m just learning it. i wanna ask whether dieselFoam gives accurate results for 2D mesh (if we keep mesh as same as given in OF-1.5 tutorial (just eleminating z coordinates)) and keeping every thing like properties etc same as given in tutorial

[u22]

Hi all,
Sorry for uping old post.

Originally Posted by niklas

Depends on how you want to model it.
It can easily be done using the chemkin interface.

N

How to model soot using chemkin interface? There is chemkin.dat (Golovichev chemkin mech file for n-heptain combustion) with soot reactions comment out.
!C4H3 + C2H2 = A1- 1.900E+63 -15.25 30600.0 !
!A1 + H = A1- + H2 2.500E+14 0.0 16000. ! Kiefer
!A1 + OH = A1- + H2O 1.600E+08 1.42 1450. ! CEC
!A1- + H (+M) = A1 (+M) 1.000E+14 0.00 0. ! RRKM
! LOW/ 6.6E+75 -16.30 7000. /
! TROE / 1.0 0.1 584.9 6113. /
! H2/2.0/ H2O/6.0/ CH4/2.0/ CO/1.5/ CO2/2.0/ C2H6/3.0/
! soot formation
!C3H3 + C3H3 = A1 2.000E+10 0.0 0.0 !
!A1 = 6C(S)+3H2 2.000E+10 0.0 0.0 !
!C4H2 = 4C(S)+H2 2.000E+10 0.0 0.0 !
!C(S)+C2H2=>3C(S)+H2 2.000E+10 0.0 0.0 !
!C2H2 = 2C(S)+H2 2.000E+10 0.0 0.0 !

It is only necessary to uncomment these lines and start solver?