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  • Physical processes affecting sediment deposition in reservoirs
  • Physical processes affecting sediment deposition in reservoirs
  • Physical processes affecting sediment deposition in reservoirs
  • Physical processes affecting sediment deposition in reservoirs
  • Physical processes affecting sediment deposition in reservoirs

Physical processes affecting sediment deposition in reservoirs

This project updated HR Wallingford’s RESSASS software to help us model and manage sediments in reservoirs.

There is growing interest in developing hydropower on grounds of low carbon emissions and reduction of nuclear hazards. This means that increasingly more adverse dam sites are being developed. At the same time there is a desire to increase the useful life of existing storage through improved reservoir management. In such situations, the loss of storage due to sedimentation is one of the major issues.

RESSASS (Reservoir Survey Analysis and Sedimentation Simulation) is a 1D numerical model developed in the past by HR Wallingford to simulate the movement and deposition of sediment in reservoirs and to make predictions about the impact of operating rules on both the volumes and location of future sedimentation.

The new version of RESSASS developed in this research project takes into account several reservoir-specific sediment processes and options:

RESSASS has been shown to provide realistic outputs when compared with real data, allowing it to be used to simulate future sedimentation and erosion behaviour in a reservoir. The new version of RESSASS is only available for use by HR Wallingford.

Authors Marta Roca; Gregor Petkovsek
Keywords Reservoir sedimentation, modelling
Completed 2013

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Contact

Marta Roca Collell

Marta Roca Collell

Principal Engineer

+44 (0)1491 822303

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Craig Goff

Craig Goff

Technical Lead, Dams and Reservoirs

+44 (0)1491 822480

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