Convective term evaluated at time n+1/2
I found an interesting article, but I would like some help to understand it.
At bottom of page 10 of http://txspace.tamu.edu/bitstream/19...-CPSC-Wang.pdf
It seems that convective term (and also term in alpha) is evaluated at time step n+1/2 (formula 1.4) from values of time n and then used as a known value at time step n+1 (formula 1.5) to get a linear equations (1.6).
As I understand, it means that convective term remains constant from one iteration to another, espetially if we are solving a steady-state problem (I would remove term in DeltaT).
Well, I guess that I missed something. How do you understand it ? Thanx,
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