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Flow quantity problem

Sun, 01/11/2004 - 5:39pm — zy
Hi, Tom, I am runing a long river model, and appear a strange result. I made a boundary Qin peak be 80m3/s, but my result show only 78.13m3/s left at 10th segment, and I havent consider any sink type, any Qout, downstream boundary is external water elevation, I want to know, how could this instance happen? Thanks [addsig]
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Hydrodynamics
Mon, 01/12/2004 - 8:13am — Tom

Your downstream external head boundary impacts the velocities in the domain. The only way to have equal flow at each segment is to have an upstream and downstream flow boundary condition that are the same.[addsig]