Validation of the General Curvilinear Coastal Ocean Model ( GCCOM ) for the case of 3D Nonhydrostatic Stratified Flow. Garcia, M., Choboter, P., F., Walter, R., K., & Castillo, J., E. Under preparation, 2017.
abstract   bibtex   
New features of the General Curvilinear Coastal Ocean Model (GCCOM) are analyzed and discussed here. The GCCOM model solves the 3D Navier-Stokes equations using the Boussinesq approximation and is capable of simulating nonhydrostatic flow built to address high-resolution problems (tens of meters). It is a Large Eddy Simulation (LES) model with sub-grid scale (SGS). One of the most important features of this model is its use of general curvilinear coordinates in all three dimensions (requiring no vertical averaging). This feature allows the model to efficiently adapt to very steep slopes, which is required to study the propagation and breaking of internal waves in nearshore events. The model was previously validated for the idealized homogeneous environment and showcased the 3D curvilinear advantages. To continue validation of the model in this work, non-stratified test cases are presented: the internal seiche in a flat bottom tank, the classical lock release gravity currents, and the internal wave tidal flow over topography. These validation experiments demonstrate that GCCOM can resolve complex nonhydrostatic phenomena with numerical accuracy and mass and energy conservation.
@article{
 title = {Validation of the General Curvilinear Coastal Ocean Model ( GCCOM ) for the case of 3D Nonhydrostatic Stratified Flow},
 type = {article},
 year = {2017},
 keywords = {gccom,lock release,nonhydrostatic,seiche,stratified flow},
 id = {dd6cade2-f612-369c-bc39-e2c757d5f7ce},
 created = {2017-06-30T17:56:38.595Z},
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 last_modified = {2017-06-30T18:38:01.336Z},
 read = {false},
 starred = {false},
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 abstract = {New features of the General Curvilinear Coastal Ocean Model (GCCOM) are analyzed and discussed here. The GCCOM model solves the 3D Navier-Stokes equations using the Boussinesq approximation and is capable of simulating nonhydrostatic flow built to address high-resolution problems (tens of meters). It is a Large Eddy Simulation (LES) model with sub-grid scale (SGS). One of the most important features of this model is its use of general curvilinear coordinates in all three dimensions (requiring no vertical averaging). This feature allows the model to efficiently adapt to very steep slopes, which is required to study the propagation and breaking of internal waves in nearshore events. The model was previously validated for the idealized homogeneous environment and showcased the 3D curvilinear advantages. To continue validation of the model in this work, non-stratified test cases are presented: the internal seiche in a flat bottom tank, the classical lock release gravity currents, and the internal wave tidal flow over topography. These validation experiments demonstrate that GCCOM can resolve complex nonhydrostatic phenomena with numerical accuracy and mass and energy conservation.},
 bibtype = {article},
 author = {Garcia, Mariangel and Choboter, Paul F and Walter, Ryan K and Castillo, Jose E.},
 journal = {Under preparation}
}

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