Modeling Turbulent Reactive Flow

geetha sri · August 26, 2010, 04:05

HI...ville

i have found ur replies to users r so helpful for me too....

i have a similar problem and hope u can help me out...

My objective is to simulate the realistic flow involving combustion of propellant(i.e.liquid fuel and liquid oxidiser)with cooling ,Thus exploring the capabilities of CFD tool and demonstrating its usefulness in supporting the design and optimization process of modern rocket engines.
is there a facility in fluent 6.3.26 for liquid-liquid impingement flame jet or limited to "liquid fuel and gaseous oxidiser" only?
can i get all the performance parameters, temperature,pressure,spatial spray distribution, droplet diameter,thrust obtianable.....
i was going through fluent tutorials can i solve this as"EQUILIBRIUM CHEMISTRY MODEL of NON PREMIXED,NON ADIABATIC,UNSTEADY LAMINAR FLEMELET with SINGLE MIXTURE FRACTION COMBUSTION PROBLEM?
Please someone suggest me with some idea to slove this problem...
thank you for spending ur precious time.
regards,
Honey.

geetha sri · August 26, 2010, 11:03

HI...

i have a similar problem and hope u can help me out...

My objective is to simulate the realistic flow involving combustion of propellant(i.e.liquid fuel and liquid oxidiser)with cooling ,Thus exploring the capabilities of CFD tool and demonstrating its usefulness in supporting the design and optimization process of modern rocket engines.
is there a facility in fluent 6.3.26 for liquid-liquid impingement flame jet or limited to "liquid fuel and gaseous oxidiser" only?
can i get all the performance parameters, temperature,pressure,spatial spray distribution, droplet diameter,thrust obtianable.....
i was going through fluent tutorials can i solve this as"EQUILIBRIUM CHEMISTRY MODEL of NON PREMIXED,NON ADIABATIC,UNSTEADY LAMINAR FLEMELET with SINGLE MIXTURE FRACTION COMBUSTION PROBLEM?
Please someone suggest me with some idea to slove this problem...
thank you for spending ur precious time.
regards,
Honey.

geetha sri · August 26, 2010, 11:06

hi...........

i have a similar problem and hope u can help me out...

My objective is to simulate the realistic flow involving combustion of propellant(i.e.liquid fuel and liquid oxidiser)with cooling ,Thus exploring the capabilities of CFD tool and demonstrating its usefulness in supporting the design and optimization process of modern rocket engines.
is there a facility in fluent 6.3.26 for liquid-liquid impingement flame jet or limited to "liquid fuel and gaseous oxidiser" only?
can i get all the performance parameters, temperature,pressure,spatial spray distribution, droplet diameter,thrust obtianable.....
i was going through fluent tutorials can i solve this as"EQUILIBRIUM CHEMISTRY MODEL of NON PREMIXED,NON ADIABATIC,UNSTEADY LAMINAR FLEMELET with SINGLE MIXTURE FRACTION COMBUSTION PROBLEM?
Please someone suggest me with some idea to slove this problem...
thank you for spending ur precious time.
regards,
Honey.

hk318i · August 26, 2010, 11:23

It is better to post your question in Fluent forum.

ashishvshelke · May 14, 2016, 02:51

Dear Foamer,.
I am working on model in which air(O2 and N2) already present in a domain and Propane is inserted from inlet with certain velocity with fixed mass say 4.5 tonn.

I have to start ignition only after whole mass comes in domain.
but in case of Firefoam and other foam reaction starts suddenly when fuel comes in contact with O2 that is not my requirement.

In other Foams given in tutorial works on Spark ignition but not build with radiation model and species mass fraction.

please help me

ashishvshelke · May 16, 2016, 01:42

@geetha sri
Fuel burns unless it comes in vapor phase.
For droplet or spray combustion liquid droplets has to become a vapor for get involved in combustion reaction.

August 26, 2010, 04:05	combustion flow simulation	#41
geetha sri New Member sri Join Date: Aug 2010 Posts: 8 Rep Power: 15	HI...ville i have found ur replies to users r so helpful for me too.... i have a similar problem and hope u can help me out... My objective is to simulate the realistic flow involving combustion of propellant(i.e.liquid fuel and liquid oxidiser)with cooling ,Thus exploring the capabilities of CFD tool and demonstrating its usefulness in supporting the design and optimization process of modern rocket engines. is there a facility in fluent 6.3.26 for liquid-liquid impingement flame jet or limited to "liquid fuel and gaseous oxidiser" only? can i get all the performance parameters, temperature,pressure,spatial spray distribution, droplet diameter,thrust obtianable..... i was going through fluent tutorials can i solve this as"EQUILIBRIUM CHEMISTRY MODEL of NON PREMIXED,NON ADIABATIC,UNSTEADY LAMINAR FLEMELET with SINGLE MIXTURE FRACTION COMBUSTION PROBLEM? Please someone suggest me with some idea to slove this problem... thank you for spending ur precious time. regards, Honey.

August 26, 2010, 11:06	comustion simulation	#43
geetha sri New Member sri Join Date: Aug 2010 Posts: 8 Rep Power: 15	hi........... i have a similar problem and hope u can help me out... My objective is to simulate the realistic flow involving combustion of propellant(i.e.liquid fuel and liquid oxidiser)with cooling ,Thus exploring the capabilities of CFD tool and demonstrating its usefulness in supporting the design and optimization process of modern rocket engines. is there a facility in fluent 6.3.26 for liquid-liquid impingement flame jet or limited to "liquid fuel and gaseous oxidiser" only? can i get all the performance parameters, temperature,pressure,spatial spray distribution, droplet diameter,thrust obtianable..... i was going through fluent tutorials can i solve this as"EQUILIBRIUM CHEMISTRY MODEL of NON PREMIXED,NON ADIABATIC,UNSTEADY LAMINAR FLEMELET with SINGLE MIXTURE FRACTION COMBUSTION PROBLEM? Please someone suggest me with some idea to slove this problem... thank you for spending ur precious time. regards, Honey.

May 14, 2016, 02:51	Comustion After Sprark ignition	#45
ashishvshelke New Member A V Shelke Join Date: Jun 2014 Location: UK Posts: 10 Rep Power: 11	Dear Foamer,. I am working on model in which air(O2 and N2) already present in a domain and Propane is inserted from inlet with certain velocity with fixed mass say 4.5 tonn. I have to start ignition only after whole mass comes in domain. but in case of Firefoam and other foam reaction starts suddenly when fuel comes in contact with O2 that is not my requirement. In other Foams given in tutorial works on Spark ignition but not build with radiation model and species mass fraction. please help me

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August 26, 2010, 11:03		#42
geetha sri New Member sri Join Date: Aug 2010 Posts: 8 Rep Power: 15	HI... i have a similar problem and hope u can help me out... My objective is to simulate the realistic flow involving combustion of propellant(i.e.liquid fuel and liquid oxidiser)with cooling ,Thus exploring the capabilities of CFD tool and demonstrating its usefulness in supporting the design and optimization process of modern rocket engines. is there a facility in fluent 6.3.26 for liquid-liquid impingement flame jet or limited to "liquid fuel and gaseous oxidiser" only? can i get all the performance parameters, temperature,pressure,spatial spray distribution, droplet diameter,thrust obtianable..... i was going through fluent tutorials can i solve this as"EQUILIBRIUM CHEMISTRY MODEL of NON PREMIXED,NON ADIABATIC,UNSTEADY LAMINAR FLEMELET with SINGLE MIXTURE FRACTION COMBUSTION PROBLEM? Please someone suggest me with some idea to slove this problem... thank you for spending ur precious time. regards, Honey.

August 26, 2010, 11:23		#44
hk318i Senior Member Hassan Kassem Join Date: May 2010 Location: Germany Posts: 242 Rep Power: 17	It is better to post your question in Fluent forum.

May 16, 2016, 01:42		#46
ashishvshelke New Member A V Shelke Join Date: Jun 2014 Location: UK Posts: 10 Rep Power: 11	@geetha sri Fuel burns unless it comes in vapor phase. For droplet or spray combustion liquid droplets has to become a vapor for get involved in combustion reaction.