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-   -   What's the meaning of "combustion scalar"and.... (https://www.cfd-online.com/Forums/cfx/20026-whats-meaning-combustion-scalar.html)

cfdbeginner November 27, 2003 10:02

What's the meaning of "combustion scalar"and....
 
I was confused by the meaning of "combustion scalar" and "mass fraction" in coal combustion model. for example, the combustion scalar3 is the nox mass fraction,and now it equals 5E-4,then what's the meaning of the number 5E-4? Is it equals 500ppm??? or the mass fraction2 is the mass fraction of oxidant,and now it equals 0.4, then then the concentration of oxidant is 0.4*22%,is it right?


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