The SAS is initially verified by comparison with the linear model solution. case study a (Section 5) is used as a benchmark, with the following modifications: ℎ $ and 𝐾 evaluated at 𝑇 1 = 597.2 K. Thus, nonlinearities are removed from the model. Two discretization levels, 𝑘 9CD = 1 and 𝑘 9CD = 𝑁, are considered. The discretization of the SAS with 𝑘 9CD = 1 is particularly important since it represents the exact linear problem solution. Moreover, the linearized solution allows a comprehensive investigation of the error sources in the SAS, as described in Section 6.2.1.