Single Species The u-v Device

If the simulation only involves a single substance (species), the situation is relatively simple, and this is the starting point. Some of this has already been described in Chap. 5 but will be repeated here, more generally, and with reference to implicit methods, not yet described. Recall the convention that a concentration denoted as Cj is a present value at the (spatial) index i, that is, a known concentration at time T, whereas C[ denotes a value, yet to be calculated, at time T + ST. 

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