MORPHODYNAMIC UPSCALING WITH THE MORFAC APPROACH IN TIDAL CONDITIONS: THE CRITICAL MORFAC

Johan Reyns; Ali Dastgheib; Roshanaka Ranasinghe; Arjen Luijendijk; Dirk-Jan Walstra; Dano Roelvink

doi:10.9753/icce.v34.sediment.27

No. 34 (2014), Sediment Transport and Morphology

No. 34 (2014)

MORPHODYNAMIC UPSCALING WITH THE MORFAC APPROACH IN TIDAL CONDITIONS: THE CRITICAL MORFAC

Sediment Transport and Morphology

https://doi.org/10.9753/icce.v34.sediment.27

Published 2014-10-26

Johan Reyns⁺⁻
Ali Dastgheib⁺⁻
Roshanaka Ranasinghe⁺⁻
Arjen Luijendijk⁺⁻
Dirk-Jan Walstra⁺⁻
Dano Roelvink⁺⁻

Johan Reyns

UNESCO-IHE

Ali Dastgheib

UNESCO-IHE

Roshanaka Ranasinghe

UNESCO-IHE TU Delft Deltares

Arjen Luijendijk

TU Delft Deltares

Dirk-Jan Walstra

TU Delft Deltares

Dano Roelvink

UNESCO-IHE TU Delft Deltares

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Keywords

morphodynamic modelling
MORFAC
Delft3D
long term coastal evolution

How to Cite

Reyns, J., Dastgheib, A., Ranasinghe, R., Luijendijk, A., Walstra, D.-J., & Roelvink, D. (2014). MORPHODYNAMIC UPSCALING WITH THE MORFAC APPROACH IN TIDAL CONDITIONS: THE CRITICAL MORFAC. Coastal Engineering Proceedings, 1(34), sediment.27. https://doi.org/10.9753/icce.v34.sediment.27

Abstract

A hampering factor in the application of morphodynamic models is the potential excessive time needed to complete a simulation. One way to upscale a model run is the use of a morphological factor, or MORFAC. In this paper, we investigate the upper limit to the value of the MORFAC as a function of model geometry and timestep for a schematized case of tidal flow, and we suggest a way to make a conservative estimate of this value using a morphology-based CFL condition.

https://doi.org/10.9753/icce.v34.sediment.27

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References

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MORPHODYNAMIC UPSCALING WITH THE MORFAC APPROACH IN TIDAL CONDITIONS: THE CRITICAL MORFAC

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