Hello,
I would like to solve a fluid-structure interaction problem including gas-phase chemical reaction. In the last 2 months, I try to use Elmer for the problem.
I confirmed that a fluid-structure interaction problem including only one gas can be solved. Next, I try to handle a mixture gas consists of two species with advectionDiffusionSolver. I do not understand the relation between the density solved by NS and values solved by advectionDiffusionSolver.
I hope that the sum of values equals to the density, or that the value is mass fraction. But, I am not sure. What is the relation between NS and advectionDiffusionSolver? Are there any help for this type of problem?
Best regards,
eisuke
Chemical Reaction
Re: Chemical Reaction
Hi,
NS Solver affects advectionDiffusionSolver.
Velocity solved by NS Solver is used in advectionDiffusionSolver.
But, advectionDiffusionSolver does not affect NS Solver.
Is this correct in ElmerSolver?
eisuke
NS Solver affects advectionDiffusionSolver.
Velocity solved by NS Solver is used in advectionDiffusionSolver.
But, advectionDiffusionSolver does not affect NS Solver.
Is this correct in ElmerSolver?
eisuke
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Re: Chemical Reaction
Well, in principle so but you could easily create a functional dependence, e.g. for viscosity on concentration. I would think that this kind of approach would work for dilute systems. -Peter
Re: Chemical Reaction
Thank you for reply.
I understand the difficulty to implement such a function to Elmer.
I will try to do anyway. And if i get interesting results, i will show it here.
eisuke
I understand the difficulty to implement such a function to Elmer.
I will try to do anyway. And if i get interesting results, i will show it here.
eisuke
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Update?--Re: Chemical Reaction
Hello,
I am a chemical engineer and would really enjoy finding an open source multi-physics with chemical reaction physics such as Continuously Stirred Tank Reactor (CSTR), Plug flow Reactor (PFR), Batch Reactor, Non-Ideal Residence Time Distribution simulation, etc.
I wish I had the programming knowledge to help Elmer contributors with such a task, but I don't. Sadly, I don't really have the aptitude to learn it either. I did well in Fortran and Visual Basic, but I just don't enjoy programming.
Anyhow, is there any plans of implementing a CRE "module" in Elmer in the near future?
I am a chemical engineer and would really enjoy finding an open source multi-physics with chemical reaction physics such as Continuously Stirred Tank Reactor (CSTR), Plug flow Reactor (PFR), Batch Reactor, Non-Ideal Residence Time Distribution simulation, etc.
I wish I had the programming knowledge to help Elmer contributors with such a task, but I don't. Sadly, I don't really have the aptitude to learn it either. I did well in Fortran and Visual Basic, but I just don't enjoy programming.
Anyhow, is there any plans of implementing a CRE "module" in Elmer in the near future?
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Re: Chemical Reaction
Hi Chris
Currently there is no plans for CRE module. It would require either projects or community effort. Most new features in Elmer are created in some projects.
Chemistry as a whole is a dirty business. To have the numerical features is one thing but to have the database for chemical reactions, or at least the interfaces is an additional compilcation. Also having a chemistry model that would work for all time scales would be a large undertaking. I once almost wrote an equilibrium chemistry module that minimizes the Gibbs energy of a system but this was not quite finished (). If there is somebody in the community interested in such a module and willing to invest some effort I could dig it up. The equilibrium chemistry approach is suited for problems where the time scale of reactions is much smaller than the time scale of transport.
-Peter
Currently there is no plans for CRE module. It would require either projects or community effort. Most new features in Elmer are created in some projects.
Chemistry as a whole is a dirty business. To have the numerical features is one thing but to have the database for chemical reactions, or at least the interfaces is an additional compilcation. Also having a chemistry model that would work for all time scales would be a large undertaking. I once almost wrote an equilibrium chemistry module that minimizes the Gibbs energy of a system but this was not quite finished (). If there is somebody in the community interested in such a module and willing to invest some effort I could dig it up. The equilibrium chemistry approach is suited for problems where the time scale of reactions is much smaller than the time scale of transport.
-Peter
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Re: Chemical Reaction
Hello Peter,
Thanks for the quick reply!
Oh well, Elmer appears to be an amazing multi-physics software anyhow! Great job!
Chris
Thanks for the quick reply!
Oh well, Elmer appears to be an amazing multi-physics software anyhow! Great job!
Chris
Re: Chemical Reaction
Hi Peter
I would be interested in your earlier efforts to make the CRE module for Elmer. If you can dig it out I will have a look at it and let you know if I can continue/finish the development for such a module.
Best regards
Rasmus
I would be interested in your earlier efforts to make the CRE module for Elmer. If you can dig it out I will have a look at it and let you know if I can continue/finish the development for such a module.
Best regards
Rasmus
Re: Chemical Reaction
Hi Peter,
The module for minimization of Gibbs energy can be an useful tool for Multiphysics work that involves surface and interfacial chemistry.
I am happy that you have put your effort in such works.
Would you please let us know what are the remaining tasks regarding that module?
Though i am a beginner in such works, I will try my best to see what i can learn from this module.
Yours
Anil Kunwar
The module for minimization of Gibbs energy can be an useful tool for Multiphysics work that involves surface and interfacial chemistry.
I am happy that you have put your effort in such works.
Would you please let us know what are the remaining tasks regarding that module?
Though i am a beginner in such works, I will try my best to see what i can learn from this module.
Yours
Anil Kunwar
Anil Kunwar
Faculty of Mechanical Engineering, Silesian University of Technology, Gliwice
Faculty of Mechanical Engineering, Silesian University of Technology, Gliwice
Re: Chemical Reaction
Hi Rasmus and Peter,Termo wrote: Hi Peter,
I would be interested in your earlier efforts to make the CRE module for Elmer. If you can dig it out I will have a look at it and let you know if I can continue/finish the development for such a module.
If this Chemical Engineering module related to minimization of Gibbs free energy of a system can be implemented in Elmer, many real world applications related to thermodynamics could be numerically calculated using Elmer.
I would like to know if there can be written any code in module which would allow us to make inputs of Burcat's Thermodynamic Database (http://garfield.chem.elte.hu/Burcat/burcat.html) and NASA polynomials (http://diesel.me.berkeley.edu/~gri_mech ... _plnm.html) in the solver input file (sif) ?
Yours
Anil Kunwar
Last edited by annier on 05 Aug 2014, 16:53, edited 4 times in total.
Anil Kunwar
Faculty of Mechanical Engineering, Silesian University of Technology, Gliwice
Faculty of Mechanical Engineering, Silesian University of Technology, Gliwice