Comparison between energy method and pressure method

[ALEXLIN]

Dear:

According to the Application Guide of HEC-RAS 3.0 example 2, why the value of "Energy EG" were different between Figure 2.19 and Figure 2.20 for the third profile. The fig 2.19 represented the Pressured method and the fig 2.20 represented the Energy method. In the six column of the third profile at fig 2.19, the value was 217.26 but it was 217.38 in fig 2.20. Since they were all resulting from the energy method, why they were different in two scheme(Energy and Pressure method)?


Sincerely Yours

Alex Lin