Tuesday 20 Nov 2012: Using Cellular Automata to Simulate Sewer Flow
Rebecca Austin - Centre for Water Systems
The number of storm events each year resulting in flooding is increasing, especially within urban environments. This in turn increases the cost incurred each year to repair the damage caused by flooding. The amount of damage can be reduced through the modelling of sewer system as this allows storm events to be planned for and real time control to occur. Traditional methods for sewer modelling are slow and complex as they involve numerical algorithms. When fast simulations are required it can be better to use simple conceptual models however, these models often have lower accuracy due to their simplicity. An alternative modelling method which has been applied in other fields is Cellular Automata (CA). To obtain an accurate conceptual model Cellular Automata has been used to simulate the flow. Two Cellular Automata models have been developed and will be presented here. The first is an adaption of a 2D model, which has also been developed at the University of Exeter, and the second Lagrangian style CA model. Both models have been tested on a small network. They have also been sued to carry out a Case Study of the sewer network in Keighley.