COxidationMurphyShaddix model

openfoammaofnepo · September 2, 2021, 02:57

Hello,

Where can find the model constant parameters , D0, rho0, T0, Dn, in the
COxidationMurphyShaddix.H. This is for char coal combustion surface reaction model.

Tried to find it in different handbooksm but failed. Thank you very much.
// Calculate diffision constant at continuous phase temperature and density [m^2/s] const scalar D = D0_*(rho0_/rhoc)*pow(Tc/T0_, Dn_);

Tobi · September 15, 2021, 08:10

Did you checked the literature given in the header file? Probably you will find something here. However, as already stated "loosely based on the reference"

Code:

Class                                                                           
    Foam::COxidationMurphyShaddix                                               
                                                                                
Description                                                                     
    Limited to C(s) + O2 -> CO2                                                 
                                                                                
    Loosely based on the reference:                                             
        Murphy, J. J., Shaddix, C. R., Combustion kinetics of coal chars        
        in oxygen-enriched environments, Combustion and Flame 144,              
        pp710-729, 2006

September 2, 2021, 02:57	COxidationMurphyShaddix model	#1
openfoammaofnepo Senior Member Join Date: Jan 2013 Posts: 372 Rep Power: 14	Hello, Where can find the model constant parameters , D0, rho0, T0, Dn, in the COxidationMurphyShaddix.H. This is for char coal combustion surface reaction model. Tried to find it in different handbooksm but failed. Thank you very much. // Calculate diffision constant at continuous phase temperature and density [m^2/s] const scalar D = D0_(rho0_/rhoc)pow(Tc/T0_, Dn_);

September 15, 2021, 08:10		#2
Tobi Super Moderator Tobias Holzmann Join Date: Oct 2010 Location: Tussenhausen Posts: 2,708 Blog Entries: 6 Rep Power: 51	Did you checked the literature given in the header file? Probably you will find something here. However, as already stated "loosely based on the reference" Code: Class Foam::COxidationMurphyShaddix Description Limited to C(s) + O2 -> CO2 Loosely based on the reference: Murphy, J. J., Shaddix, C. R., Combustion kinetics of coal chars in oxygen-enriched environments, Combustion and Flame 144, pp710-729, 2006 __________________ Keep foaming, Tobias Holzmann

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