In this video I show you how to analyse a combustion inside a combustion chamber using the solver reactingFoam Link drive for the step file of the combustion chamber: drive.google.c...
I'm trying to perform a simulation where I have three different gases, O2, CO2 and N2. Do you think that is possible use your tutorial, deactivating the combustion part...
Great Work !! I found very few videos on the combustion with OpenFOAM that explains it step by step!! I have a question regarding the Temperature, when we set the internal field of temperature ( in 0 folder) at high value of 2000K , the end result in paraFoam gives a maximum value of 2000K. So if you set that at 1000K, the maximum temperature in paraFoam will be around 1000K. Where as the stochiometric flame adiabatic temeperature is around 2236K.There should be some temperature rise due to combustion and maximum temperature should be around this value. What do you think? It will be great to get a reply from you on the same.
Thank you very much for your tutorial. As other said, your combustion tutorial is among those few tutorials I can find in youtube. However, when I tried to download the file. It was said that "Sorry, the file you have requested does not exist.". Could you assist this issue? Thank you very much once again.
@@amazingengineering3207 Please make Openfoam videos. I am truly fan of your combustion simulation. I am doing fuel injection simulation in gas turbine engine. Thank you
hello , i am modelling methane oxygen combustion in a combustion chamber. i have a heat flux distribution along the combustor wall so how do i setup the distribution along the wall?
It seems to be mixing the reactants but no reaction is happening. For example, at 16:42 the temperature should be more mixed and messy flow, because of reactions. Besides that, the temperatures at the center region should increase beyond the set value 2000 K. Could you explain, please?
I set 2000k becouse this is the maximun temperature of the reaction in an ideal combustion case. About the rest, you could try to reduce the time step to have a better evolution
Hi, I am doing project on Characterization of on-source fire whirls on the basis of TCI and TRI. using methanol as liquid fuel so I just modified 3D small poolfire case but in one research paper they used Gri mech 3.0 reaction, I am confused bc at Gri mech3.0 website they clearly mentioned it will give inaccurate results for parental fuels other than natural gas but still I run the case with reacting foam by modifying Sandia_LTS tutorial but I am not able validate results' m doing some mistake in setting up the case>Can you please help? I can share details of my project.
@@amazingengineering3207 Is it then possible to set oxygen content to 1.0 and N2 to 0.0 for a pure oxygen gas feed ? I'm a few steps away from working with reactingFoam, but it might be an interesting task for this years 2020 Jozsef Nagy challenge.
Can you please tell how to simulate helium gas passing into the quiescent air medium? The dynamics are not due to the buoyancy effect. Which is best suited?
I follow the tutorial so many times, so many hours, and without succes openfoam 7 openfoam 8 in ubuntu and temperature goes out of 5000-6000 a lot of warnings of janaf and the result is don't enter fuel or air, the chamber in the init is 2000 ° and with time is cooling with cold air from outlet, Can you share to me the thermo.compressibleGas properties here or for DM i think there is the problem. Another question why Rosenbrock34;? (by defect Rosembrok43). Other Are you using the folder tutorial of counterFlowFlame2D or olse other (in this i'm tryning changin those files). I don't have reactingMixture in thermophysicalPropierties on openFoam by defect use multiComponentMixture.Is this correct? Are you sure the cad that your upload recently is the same? Do you think because dimensions 300 mm STEP solidtwork (to salome changed the configure to meters generate problems?) or the geometry is too small 30 cm and for that is the higher temperature? Thank you in advance
After doing meshing in salome as mentioned in video, when trying to convert ideasunvtofoam the below error occurs. How to rectify this. 39663 39664 39665 39666 39667 ) From function T& Foam::HashTable::operator[](const Key&) [with T = int; Key = int; Hash = Foam::Hash] in file /home/ubuntu/OpenFOAM/OpenFOAM-9/src/OpenFOAM/lnInclude/HashTableI.H at line 109. FOAM exiting
Sir how did you isolate the 0,constant and system files in the world directory? Was it written separately or copied from some pre-existing tutorial? Sorry if this question seems elementary but I am just starting to learn OpenFOAM.
@@amazingengineering3207 if it is not too much trouble may i request you to share the link of the website please..I am unable to find the exact directory
Hi. Thank you for this video. I'm newer in OpenFoam and I tried to repeat your case. Unfortunately I had an error "keyword chemistry is underfined in dictionary", i.e. it doesn't want to take solver EulerImplicit. I tried to change it, after it I had errors with species files on outlet, it works only with zeroGradient what is not correct. Could you, please, advise me what is wrong? Thanks in advanse.
Sometimes it depeds on the openfoam version you are using. I had similar problems in other case. I can only suggest you to visiting some forum as i did
@@amazingengineering3207, hi, sorry to disturb you. I could run the calculation after changing of chemistryProperties file, in particular I changed odeCoeffs solver from Rosenbrock34 to seulex (with Rosenbrock it was failed). But the result is not similar, I don't see this picture like in your video. Can be the cause in version?
