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-   -   COxidationMurphyShaddix model (https://www.cfd-online.com/Forums/openfoam/238260-coxidationmurphyshaddix-model.html)

openfoammaofnepo September 2, 2021 02:57
COxidationMurphyShaddix model
 
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


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