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rho_s(0) is not used in pyrolysis in the current release of FDS. Neither Eq. 9.1 nor Eq 9.2 contain rho_s(0). The note at the bottom of the page for those equations that has rho_s(0) is instructions on how to convert the A input for older versions of FDS where rho_s(0) was in the pyrolysis equaiton. ML%RHO_S is not rho_s(0). ML%RHO_S is the DENSITY input on MATL. It will be rho_s(0) when the MATL has a MASS_FRACTION of 1, otherwise it will be a lower value. |
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Dear developers,
I'd like to confirm if ML%RHO_S in e.g. wall.f90 represents the initial density of the MATL layer (user input), given as rho_s(0) in the FDS user's guide 9.2.2.
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