Explorative study on a discrete particle model for sheet flow simulations

Gelderloos, Renske (2008) Explorative study on a discrete particle model for sheet flow simulations.

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Abstract:Under high waves in shallow water a high energy sediment transport regime occurs called 'sheet flow'. In this regime large amounts of sediment are transported in a short time interval. Reliable prediction methods for this transport regime are therefore very important to civil engineers. However, mainly due to lack of insight in the underlying physical phenomena predictive models still fail too often. In this study a relatively new approach was followed in order to increase the understanding of sheet flow. A very detailed computer model was used to simulate sheet flow up to the level of individual sand particles (a Discrete Particle Model, DPM). Although we did not succeed in making simulations of actual sheet flow cases, this explorative study shows that the potential value of DPM simulations for sediment transport is substantial as many issues of uncertainty in existing models can be studied in detail using a DPM. This report will give an overview of the possibilities as well as the limitations of DPM-simulations for sheet flow modelling.
Item Type:Essay (Master)
Faculty:ET: Engineering Technology
Subject:56 civil engineering
Programme:Civil Engineering and Management MSc (60026)
Link to this item:http://purl.utwente.nl/essays/57869
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