New Transport Capabilities and Timesteppers for a Discontinuous Galerkin Wave Model
| Main Author: | |
|---|---|
| Language: | English |
| Published: |
The Ohio State University / OhioLINK
2016
|
| Subjects: | |
| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=osu1461233325 |
| id |
ndltd-OhioLink-oai-etd.ohiolink.edu-osu1461233325 |
|---|---|
| record_format |
oai_dc |
| spelling |
ndltd-OhioLink-oai-etd.ohiolink.edu-osu14612333252021-08-03T06:35:58Z New Transport Capabilities and Timesteppers for a Discontinuous Galerkin Wave Model Sebian, Rachel A. Civil Engineering discontinuous Galerkin wave modeling timesteppers Recent increases in potentially hazardous environmental events have led to a clear need for advanced analytic procedures and computational tools for accurate and efficient event prediction. Towards this end, in this thesis we present the further development and application of a high-order discontinuous Galerkin (DG)-based wave model, called DG--WAVE, originally developed for simulating winddriven waves on the Great Lakes. An overview and background of the DG--WAVE model is provided and model advancements are investigated. Specifically, we highlight further developments in the areas of numerical improvements aimed at increasing model accuracy as well as physical improvements motivated by widening the model applicability. A comparative study between mesh and polynomial refinement options is examined, indicating that polynomial refinement is an attractive option for increasing model accuracy while maintaining efficiency. New time steppers compatible with higher-order basis polynomials are optimized for use with DG finite element spatial discretizations. A new algal transport algorithm is implemented and applied within the modeling framework. To validate our modeling approach and demonstrate capabilities and advantages of our parametric DG wave model a simple test case study is performed, and an initial hindcast on Lake Erie is explored making use of satellite imagery. 2016-09-19 English text The Ohio State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=osu1461233325 http://rave.ohiolink.edu/etdc/view?acc_num=osu1461233325 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
| collection |
NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Civil Engineering discontinuous Galerkin wave modeling timesteppers |
| spellingShingle |
Civil Engineering discontinuous Galerkin wave modeling timesteppers Sebian, Rachel A. New Transport Capabilities and Timesteppers for a Discontinuous Galerkin Wave Model |
| author |
Sebian, Rachel A. |
| author_facet |
Sebian, Rachel A. |
| author_sort |
Sebian, Rachel A. |
| title |
New Transport Capabilities and Timesteppers for a Discontinuous Galerkin Wave Model |
| title_short |
New Transport Capabilities and Timesteppers for a Discontinuous Galerkin Wave Model |
| title_full |
New Transport Capabilities and Timesteppers for a Discontinuous Galerkin Wave Model |
| title_fullStr |
New Transport Capabilities and Timesteppers for a Discontinuous Galerkin Wave Model |
| title_full_unstemmed |
New Transport Capabilities and Timesteppers for a Discontinuous Galerkin Wave Model |
| title_sort |
new transport capabilities and timesteppers for a discontinuous galerkin wave model |
| publisher |
The Ohio State University / OhioLINK |
| publishDate |
2016 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=osu1461233325 |
| work_keys_str_mv |
AT sebianrachela newtransportcapabilitiesandtimesteppersforadiscontinuousgalerkinwavemodel |
| _version_ |
1719439735317856256 |