Reference & User Manual
|Last modified on: Thursday, 20-May-10 18:36 CEST|
WaterWare models: SPILL/BLTM water quality ModelSPILL/BLTM is a dynamic (hourly) water quality model to describe short-term and local scenarios of short-term pollution loads such as storm runoff or accidental spills. The model can describe conservative or first order decaying pollutants. An extension for oil spill is in preparation.
SPILL/BLTM is base on the Branched Lagrangian Transport Model (BLTM) originally develop by the USGS. BLTM uses Lagrangian calculations that are unconditionally stable and based upon a reference frame that moves at a velocity equal to the mean channel flow velocity. BLTM results are within the accuracy required by most water-quality studies. The BLTM is easily applied to unsteady flows in networks of one-dimensional channels with fixed geometry and tributary inflows. Reaction kinetics can be provided in a user-written decay-coefficient subroutine. The model routes one or more possibly interacting constituents through a system of one-dimensional channels.
Scenario selectionAfter login, a selector list of available scenarios is shown.
The list includes, for each scenario, its
To select a scenario, use the left mouse button while the corresponding record is highlighted.
To create a new scenario, use the button labeled new scenario on top of the listing.