Print Email Facebook Twitter Morphodynamic upscaling with the MORFAC approach Title Morphodynamic upscaling with the MORFAC approach Author Ranasinghe, R.W.M.R.J.B. Swinkels, C. Luijendijk, A.P. Bosboom, J. Roelvink, D. Stive, M.J.F. Walstra, D.J.R. Faculty Civil Engineering and Geosciences Department Hydraulic Engineering Date 2010-06-30 Abstract The Morphological Acceleration Factor (MORFAC) approach for morphodynamic upscaling enables the simulation of long term coastal evolution. However the general validity of the MORFAC concept for coastal applications has not yet been comprehensively investigated. Furthermore, a robust and objective method for the a priori determination of the highest MORFAC that is suitable for a given simulation (i.e. critical MORFAC) does not currently exist. This paper presents some initial results of an ongoing, long-term study that attempts to rigorously and methodically investigate the limitations and strengths of the MORFAC approach. Based on the results of a numerical modelling exercise using the morphodynamic model Delft3D, the main dependencies and sensitivities of the MORFAC approach are investigated. Also, a criterion is proposed for the a priori determination of the critical MORFAC, based on the CFL condition for bed form migration. Subject morphodynamic modellingMORFACDelft3Dlong term coastal evolution To reference this document use: http://resolver.tudelft.nl/uuid:38b57dbf-a036-442a-b653-ba32475c2184 Source 32nd International Conference on Coastal Engineering, ICCE 2010, June 30 – July 5 2010, Shanghai, China Part of collection Institutional Repository Document type conference paper Rights (c) 2010 The Author(s) Files PDF 275947.pdf 224.47 KB Close viewer /islandora/object/uuid:38b57dbf-a036-442a-b653-ba32475c2184/datastream/OBJ/view