@article{fdi:010079590,
  title = {{A}n implicit wetting-drying algorithm for the discontinuous {G}alerkin method : application to the {T}onle {S}ap, {M}ekong {R}iver {B}asin},
  author = {{L}e, {H}. {A}. and {L}ambrechts, {J}. and {O}rtleb, {S}. and {G}ratiot, {N}icolas and {D}eleersnijder, {E}. and {S}oares-{F}razao, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he accurate simulation of wetting-drying processes in floodplains and coastal zones is a challenge for hydrodynamic modelling, especially for long time simulations. {I}ndeed, dedicated numerical procedures are generally time-consuming, instabilities can occur at the wet/dry front, rapid transition of wet/dry interface and mass conservation are not always ensured. {W}e present the extension of an existing wetting-drying algorithm in two space dimensions and its application to a real case. {T}he wetting-drying algorithm is implemented in {S}econd-generation {L}ouvain-la-{N}euve {I}ce-ocean {M}odel (), a discontinuous {G}alerkin finite element model solving the shallow water equations in a fully implicit way. {T}his algorithm consists in applying a threshold value of fluid depth for a thin layer and a blending parameter in order to guarantee positive values of the water depth, while preserving local mass conservation and the well balanced property at wet/dry interfaces. {T}he technique is first validated against standard analytical test cases ({B}alzano 1, {B}alzano 3 and {T}hacker test cases) and is subsquently applied in a realistic domain, the {T}onle {S}ap {L}ake in the {M}ekong {R}iver {B}asin, where the water level can vary by about 10 m between the dry and the wet season.},
  keywords = {{N}umerical model ; {W}etting-drying ; {SLIM} ; {DG}-{FEM} ; {M}ekong ; {T}onle {S}ap lake ; {CAMBODGE} ; {TONLE} {SAP} {LAC} ; {MEKONG} {BASSIN}},
  booktitle = {},
  journal = {{E}nvironmental {F}luid {M}echanics},
  volume = {20},
  numero = {4},
  pages = {923--951},
  ISSN = {1567-7419},
  year = {2020},
  DOI = {10.1007/s10652-019-09732-7},
  URL = {https://www.documentation.ird.fr/hor/fdi:010079590},
}