Numerical Simulation of Wind-Driven Circulation in a Thermally Stratified Flow
The closed water bodies, such as reservoirs and lakes, can be polluted by an inflow of pollutants in the upstream as well as a stratification caused by seasonal natural phenomena. The vertical circulation particularly plays an important role in reducing environmental pollutants. The factors of the v...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-01-01
|
| Series: | Abstract and Applied Analysis |
| Online Access: | http://dx.doi.org/10.1155/2015/727315 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850163211250171904 |
|---|---|
| author | Jin Woo Lee He-Rin Cho Yong-Sik Cho |
| author_facet | Jin Woo Lee He-Rin Cho Yong-Sik Cho |
| author_sort | Jin Woo Lee |
| collection | DOAJ |
| description | The closed water bodies, such as reservoirs and lakes, can be polluted by an inflow of pollutants in the upstream as well as a stratification caused by seasonal natural phenomena. The vertical circulation particularly plays an important role in reducing environmental pollutants. The factors of the vertical circulation are the temperature, wind, thermal diffusivity, sunlight, and so on. The wind is the most significant factor among all possible factors causing the vertical circulation. Thus, it is necessary to describe the validation and application of a three-dimensional numerical model of wind-driven circulation in a thermally stratified flow. In this study, the numerical model is conducted in three steps to calculate the velocity components from the momentum equations in x- and y-directions, the elevations from the free surface equation, and the temperature from the scalar transport equation. The present model was applied to two tests for verification of the numerical accuracy. Numerical results are compared with analytical solutions of the sloshing free surface movement in a rectangular basin and the model is applied to the circulation for the wind-driven flow in a thermal stratification. Consequently, the developed model is validated by two verifications and phenomena of the internal flow. |
| format | Article |
| id | doaj-art-eb96d2b9b5894ce997f93dc725f867a1 |
| institution | OA Journals |
| issn | 1085-3375 1687-0409 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Abstract and Applied Analysis |
| spelling | doaj-art-eb96d2b9b5894ce997f93dc725f867a12025-08-20T02:22:20ZengWileyAbstract and Applied Analysis1085-33751687-04092015-01-01201510.1155/2015/727315727315Numerical Simulation of Wind-Driven Circulation in a Thermally Stratified FlowJin Woo Lee0He-Rin Cho1Yong-Sik Cho2Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Republic of KoreaDepartment of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Republic of KoreaDepartment of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Republic of KoreaThe closed water bodies, such as reservoirs and lakes, can be polluted by an inflow of pollutants in the upstream as well as a stratification caused by seasonal natural phenomena. The vertical circulation particularly plays an important role in reducing environmental pollutants. The factors of the vertical circulation are the temperature, wind, thermal diffusivity, sunlight, and so on. The wind is the most significant factor among all possible factors causing the vertical circulation. Thus, it is necessary to describe the validation and application of a three-dimensional numerical model of wind-driven circulation in a thermally stratified flow. In this study, the numerical model is conducted in three steps to calculate the velocity components from the momentum equations in x- and y-directions, the elevations from the free surface equation, and the temperature from the scalar transport equation. The present model was applied to two tests for verification of the numerical accuracy. Numerical results are compared with analytical solutions of the sloshing free surface movement in a rectangular basin and the model is applied to the circulation for the wind-driven flow in a thermal stratification. Consequently, the developed model is validated by two verifications and phenomena of the internal flow.http://dx.doi.org/10.1155/2015/727315 |
| spellingShingle | Jin Woo Lee He-Rin Cho Yong-Sik Cho Numerical Simulation of Wind-Driven Circulation in a Thermally Stratified Flow Abstract and Applied Analysis |
| title | Numerical Simulation of Wind-Driven Circulation in a Thermally Stratified Flow |
| title_full | Numerical Simulation of Wind-Driven Circulation in a Thermally Stratified Flow |
| title_fullStr | Numerical Simulation of Wind-Driven Circulation in a Thermally Stratified Flow |
| title_full_unstemmed | Numerical Simulation of Wind-Driven Circulation in a Thermally Stratified Flow |
| title_short | Numerical Simulation of Wind-Driven Circulation in a Thermally Stratified Flow |
| title_sort | numerical simulation of wind driven circulation in a thermally stratified flow |
| url | http://dx.doi.org/10.1155/2015/727315 |
| work_keys_str_mv | AT jinwoolee numericalsimulationofwinddrivencirculationinathermallystratifiedflow AT herincho numericalsimulationofwinddrivencirculationinathermallystratifiedflow AT yongsikcho numericalsimulationofwinddrivencirculationinathermallystratifiedflow |