Loading...
Please wait, while we are loading the content...
Similar Documents
Gravity currents from a dam-break in a rotating channel
| Content Provider | Scilit |
|---|---|
| Author | Helfrich, Karl R. Mullarney, Julia C. |
| Copyright Year | 2005 |
| Description | The generation of a gravity current by the release of a semi-infinite region of buoyant fluid of depth is the deformation radius. The semigeostrophic solution compares favourably with numerical solutions of a single-layer shallow-water model that internally develops a leading bore. Existing laboratory experiments are re-analysed and some new experiments are undertaken. Comparisons are also made with a three-dimensional shallow-water model. These show that lateral boundary friction is the primary reason for differences between the experiments and the semigeostrophic theory. The wall no-slip condition is identified as the primary cause of the experimentally observed decrease in gravity current speed with time. A model for the viscous decay is developed and shown to agree with both experimental and numerical model data. |
| Related Links | https://www.cambridge.org/core/services/aop-cambridge-core/content/view/8BAB9EC6E810079C1942C97B9A1A4D2D/S0022112005004544a.pdf/div-class-title-gravity-currents-from-a-dam-break-in-a-rotating-channel-div.pdf |
| Ending Page | 283 |
| Page Count | 31 |
| Starting Page | 253 |
| ISSN | 00221120 |
| e-ISSN | 14697645 |
| DOI | 10.1017/s0022112005004544 |
| Journal | Journal of Fluid Mechanics |
| Volume Number | 536 |
| Language | English |
| Publisher | Cambridge University Press (CUP) |
| Publisher Date | 2005-07-26 |
| Access Restriction | Open |
| Subject Keyword | Journal of Fluid Mechanics Shallow Water Model |
| Content Type | Text |
| Resource Type | Article |
| Subject | Applied Mathematics Mechanics of Materials Condensed Matter Physics Mechanical Engineering |
