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Species boundary condition

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Old   June 6, 2004, 19:00
Default Species boundary condition
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iceabc
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I defined a zero diffusive flux for species at wall boundary. Does it mean that the species mass fraction at wall is the same as the species mass fraction at cell center next to the wall? Thanks. If not, what is the difference between species mass fraction at the wall and species mass fraction at cell center next to the wall?
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