| ATTRIBUTE | VALUE |
|---|
| type | A |
| database id | 6637 |
| title | A Lagrangian finite element treatment of transient free-surface waves in compressible viscous fluids |
| authors | Staroszczyk R.1 |
| affiliations | |
| pages | 261 — 284 |
| full text link | http://www.ibwpan.gda.pl/storage/app/media/ahem/ahem54str261.pdf |
| keywords | Newtonian viscous fluid, gravitational wave, transient problem, Lagrangian formulation, finite element method |
| tasks | Z 1.3.2/2007: Zbadanie falowania wody za pomocą materialnej metody elementów skończonych |
| abstracts | In this paper the problem of transient gravitational wave propagation in a viscouscompressible fluid is investigated. The problem is formulated in the Lagrangian descriptionand is solved numerically by a finite element method. In computations either fixed in space ormoving meshes that follow the material fluid particles are used with the purpose to comparetheir numerical performance. As illustrations, results of numerical simulations carried outfor plane flows in a domain of simple geometry are presented. First, the finite elementresults are compared with available experimental data for the case of small-amplitude wavesin order to validate the numerical model. Then, the problem of large-amplitude transientwater wave propagation over a horizontal bottom, involving the wave reflection at a rigidwall, is considered. For the flow parameters typical of a laboratory flume, the evolution ofthe free-surface elevation and the time variations of the surface displacements at chosenlocations are shown for a range of different moving wall amplitudes and excitation times. |
| attributes | [reviewed] [scientific] |
| language | en |
| points | 4 |
| PART OF |
|---|
| type | C |
| database id | 7091 |
| year | 2007 |
| series | Archives of Hydro-Engineering and Environmental Mechanics |
| issue | Vol. 54, No. 4 |
| publisher | Wydawnictwo IBW PAN |
| place | Gdańsk |
| editors | Kazimierz Szmidt |