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how coupled chemical kinetics and HCCI combustion in AVL FIRE |
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May 23, 2013, 12:48 |
how coupled chemical kinetics and HCCI combustion in AVL FIRE
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#1 |
Senior Member
amin u3fi
Join Date: Feb 2013
Posts: 137
Rep Power: 13 |
Hi dears...
i want simulate HCCI combustion with FIRE and link the FIRE with CHEMKINE (chemical kinetics). so when i enter the transdat & thermdat file of fuel in the case folder and start calculate i face this error: %fire-I-chom_input, finished setup of homogeneous reaction problem %fire-F-cthgck_ck.f, species C2H2OH not found in chemkin database thermdat. please check name but this species exist in the thermdat file. please help me. regards amin_u50 |
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May 24, 2013, 11:34 |
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#2 |
New Member
Myunghwan Kim
Join Date: Jul 2012
Posts: 29
Rep Power: 13 |
Hi,
Well.. please check your ssf again. thermodynamic database flag in Fluid Properties should be set as "external" or "both" in your case because FIRE internal database doesn't support C2H2OH. I guess. |
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May 24, 2013, 12:56 |
hi kimmhw...
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#3 |
Senior Member
amin u3fi
Join Date: Feb 2013
Posts: 137
Rep Power: 13 |
hi kimmhw
thermodynamic database flag in fluid properties is both but this error appear again and does not difference in this error. as the thermdat file isen't read kimmhw please help me... thanx |
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May 24, 2013, 19:59 |
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#4 |
New Member
Myunghwan Kim
Join Date: Jul 2012
Posts: 29
Rep Power: 13 |
Well.. You should paste the correct error message.
But you already posted a similar problem before. (http://www.cfd-online.com/Forums/avl...-reaction.html) Careful of filename file should be ascii format files should exist in Case folder which you want to calculate. |
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May 25, 2013, 05:25 |
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#5 |
Senior Member
amin u3fi
Join Date: Feb 2013
Posts: 137
Rep Power: 13 |
hi kimmhw...
All the works that i have done as follow: 1-activate both in fluid properties for thermodynamic database 2-put the thermdat & trandat file in case folder 3-start the calculation but i face to same error again as follow: %fire-I-chom_input, finished setup of homogeneous reaction problem %fire-F-cthgck_ck.f, species C2H2OH not found in chemkin database thermdat. please check name is this the correct steps? did you do this steps? thanx for you. amin_u50 regard |
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May 26, 2013, 21:39 |
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#6 |
New Member
Myunghwan Kim
Join Date: Jul 2012
Posts: 29
Rep Power: 13 |
Please try this.
1) Remove the lines starting with "!" in thermdat. (Line # 3,4,5) 2) Additionally, please do not use the space in folder name. e.g) d:\Fire example\HCCI engine4\ ==> d:\Fire_example\HCCI_engine4\ 3) "Chemistry.inp" shoulde be assigned again because folder structure has been changed. 4) in Fluid Properties, "Activate database for all" can be chosen if you want. It's up to you. I hope you could solve the problem. |
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June 11, 2013, 05:19 |
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#7 |
Senior Member
amin u3fi
Join Date: Feb 2013
Posts: 137
Rep Power: 13 |
hi kimmhw...
The problem of recognizing the species is solved but during calculation i face to follow message and finish the calculation in the first iteration... %fire-I-chom_rate, calling solver for homogeneous reactions %fire-I-chom_rate, progress of ODE solution = 20% %fire-I-chom_rate, progress of ODE solution = 40% %fire-I-chom_rate, progress of ODE solution = 60% %fire-I-chom_rate, progress of ODE solution = 80% %fire-I-chom_rate, progress of ODE solution = 100% * 1. Time Step Time = 0.5555555556E-04 dt = 0.5556E-04 * * Angle = 540.500 dphi = 0.5000E+00 * ITER I***************** Relative Residual Source Sums *************I I******** Field Values at Monitoring Location 1 *******I NO. RESU RESV RESW RESM RESK RESD RESH U V W P TKIN DISP TEMP thanx for help best regards amin_u50 Last edited by amin_u50; June 11, 2013 at 13:37. |
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March 30, 2021, 15:39 |
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#8 |
New Member
turaj
Join Date: Mar 2021
Posts: 9
Rep Power: 5 |
hi
how can I run a multi-component fuel simulation in work flow manager for a diesel engine? please help me. My email address is turaj.hashempur2@gmail.com Thanks in advance |
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