Boss-Dambreak - Option 14

Chris,

Dambrk Version 3,00

Question 1

Option 14 states in the Boss Dambrk User manual that Option 14 uses storage level pool routing above the upstream flow structure and dynamic routing in all other reaches.

In the Input Data Summary section its states the Option used and the type of reservoir routing, in the models I have run the Input Data Summary states Option 14, Type of Reservoir Routing (KUI) is 1 (dynamic routing).

Is Option 14 using storage level pool routing for the upstream flow structure?

Question 2

In the same Boss Dambrk model, in the section on distance between interpolated cross sections (DXM) that will be used in computations, why does the DXM value sometimes place the 101??

Dear Joe Kissel :

Option 14 is using level pool routing of the upstream most structure, but can account for tailwater submergence at the dam's tailwater cross-section. It does this by using a simultaneous simulation method. Note that Option 1 uses a sequential solution method (performing the reservoir routing first, and then the downstream river routing), and therefore cannot account for tailwater submergence.

Note that DAMBRK forces the DXM value to be 101 as a "dummy value" so that it does not interpolate any cross-sections in this region of the model. This is something that the NWS DAMBRK program simply does.

If you have any additional questions or need any further information, please contact me again.

Sincerely,

Chris E. Maeder, M.S.
Senior Technical Engineer
chris.maeder@bossintl.com