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Improving 1D mass balance in Flood Modeller

One of the fundamental equations solved in the Shallow Water Equations is the conservation of mass - the other(s) being conservation of momentum in however many dimensions you are solving it in.

It also stands to reason – the volume you put in the model should equal the volume that leaves the model plus the additional volume stored in the model. Put bluntly, if your volume is not conserving mass adequately, how can you possibly believe any of the results you are getting?

In this month's tip, Dr. Konrad Adams, Senior Developer for Flood Modeller, provides an introduction to 1D mass balance within Flood Modeller and discusses the benefits and drawbacks of different options.


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