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

Proceedings of the International Conference on Coastal Engineering

Ali Dastgheib²  Dirk-Jan Walstra¹  Johan Reyns²  Dano Roelvink³  Roshanaka Ranasinghe³  Arjen Luijendijk¹ 

[1] TU DelftDeltares;UNESCO-IHE;UNESCO-IHETU DelftDeltares

关键词: morphodynamic modelling;    MORFAC;    Delft3D;    long term coastal evolution;   

DOI  :  10.9753/icce.v34.sediment.27

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

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.

【 授权许可】

Unknown