| ATTRIBUTE | VALUE |
|---|---|
| type | C |
| database id | 3854 |
| title | |
| authors | |
| affiliations | |
| year | 2002 |
| series | Archives of Hydro-Engineering and Environmental Mechanics |
| issue | Vol. 49, No. 1 |
| publisher | Wydawnictwo IBW PAN |
| place | Gdańsk |
| attributes | [published] [reviewed] [scientific] [international reach] |
| language | en |
| ATTRIBUTE | VALUE |
|---|---|
| type | A |
| database id | 3855 |
| title | Application of cnoidal wave theory in modelling of sediment transport |
| authors | Ostrowski R. |
| pages | 107 — 118 |
| full text link | http://www.ibwpan.gda.pl/storage/app/media/ahem/ahem49no1str107.pdf |
| affiliations | |
| abstracts | A way of modelling of the net sediment transport rate under shallow water asymmetric waves is presented. In the model, wave-induced nearbed horizontal velocity is described by the cnoidal theory and the 2nd order Stokes approximation. Theoretical results of the model are compared with the IBW PAN laboratory data |
| attributes | [reviewed] [scientific] |
| language | en |
| points | 6 |
| ATTRIBUTE | VALUE |
|---|---|
| type | A |
| database id | 3857 |
| title | On the measurement of strains in the triaxial test |
| authors | Świdziński W., Mierczyński J. |
| pages | 23 — 41 |
| full text link | http://www.ibwpan.gda.pl/storage/app/media/ahem/ahem49no1str023.pdf |
| affiliations | |
| abstracts | In the paper, various methods of measuring a sample strains in a triaxial test are analysed. Accurate determination of the deformation of a specimen in a triaxial compression test is of great importance for correct evaluation of soil strain-stress characteristics, particularly in the pre-failure stress state in the range of small strains. In the paper, three different methods of measuring axial strains are analysed and discussed. Two consider the measurement of relative movement between top cap and base pedestal of the triaxial cell, the third being based on the direct measurement of local axial deformation of the sample tested. The measurement of radial strains is also discussed in respect of the corrections introduced for the specimen's bulging. To analyse various methods of strains measurements tests on diverse materials such as sand, steel and rubber were carried out, enabling the evaluation of the efficiency and accuracy of the measurement methods applied. |
| attributes | [reviewed] [scientific] |
| language | en |
| points | 6 |
| ATTRIBUTE | VALUE |
|---|---|
| type | A |
| database id | 4374 |
| title | Simulation of Three-dimension Side Discharge into an Open Channel |
| authors | Yafei Jia, Włodzimierz Czernuszenko, Wang S. S. Y. |
| pages | 3 — 21 |
| full text link | http://www.ibwpan.gda.pl/storage/app/media/ahem/ahem49no1str003.pdf |
| affiliations | |
| abstracts | A three-dimensional computational model, solving Reynolds equations with the k-ε turbulence closure, has been presented to simulate the flow field in an open channel near a side-discharge channel. The purpose of this study was to exam this model's applicability for simulating the three-dimensional recirculation velocity field in the vicinity of the side discharge channel. The numerical simulations show that both the height and length of the recirculation zone were correctly predicted when compared with laboratory measurements. The predicted trend of the shape of the recirculation zone under different flow conditions agrees with experimental data. It was confirmed that the SMART upwinding scheme performs better than QUICK and HYBRID schemes, since it induces less numerical diffusion and no oscillations. It was found in this study that the SMART scheme needs some minor modifications for complex flow computations. |
| attributes | [reviewed] [scientific] |
| language | en |
| ATTRIBUTE | VALUE |
|---|---|
| type | A |
| database id | 3856 |
| title | Experimental investigations of elastic anisotropy of sands |
| authors | Sawicki A., Świdziński W. |
| pages | 43 — 56 |
| full text link | http://www.ibwpan.gda.pl/storage/app/media/ahem/ahem49no1str043.pdf |
| affiliations | |
| abstracts | Some results of experimental investigations of sands, performed in the triaxial compression apparatus with additional measurement of lateral strains are presented. These results suggest that the reversible (elastic) response of specimens is anisotropic. A simple experimental programme enables determining the elastic constants for the configuration analysed. Extensive discussion of results obtained is also presented. |
| attributes | [reviewed] [scientific] |
| language | en |
| points | 6 |
| ATTRIBUTE | VALUE |
|---|---|
| type | A |
| database id | 3858 |
| title | Quasi 3D model of wave-induced currents in coastal zone |
| authors | Szmytkiewicz M. |
| pages | 57 — 81 |
| full text link | http://www.ibwpan.gda.pl/storage/app/media/ahem/ahem49no1str057.pdf |
| affiliations | |
| tasks | 8 T07A 047 21: Rozszerzenie i unowocześnienie matematycznego modelu cyrkulacji wody w strefie brzegowej o prądy generowane przez dodatkowe źródła na podstawie ich analizy i badań w naturze |
| abstracts | The present model allows for simultaneous computations of depth-variable longshore currents and undertows, being the two most important components of coastal flows, at arbitrarily chosen locations of the nearshore zone, with the assumption of parallel isobaths. In the model, the flow velocities are calculated as functions of energy dissipation due to wave breaking. In the description of the wave-breaking, the effect of a roller has been taken into account. As a result of interaction of the cross-shore and longshore currents, a spiral-like resultant velocity vector appears, variable over water depth. The comparisons of calculated and measured vertical distributions of water flow velocity for conditions of the campaigns "Lubiatowo 87" and "Lubiatowo 96" have shown good conformity between experimental data and the present model. |
| attributes | [reviewed] [scientific] |
| language | en |
| points | 6 |
| ATTRIBUTE | VALUE |
|---|---|
| type | A |
| database id | 4375 |
| title | Reverse flow routing problem solved by the space-time conservation method |
| authors | Katarzyna Weinerowska |
| pages | 83 — 105 |
| full text link | http://www.ibwpan.gda.pl/storage/app/media/ahem/ahem49no1str083.pdf |
| affiliations | |
| abstracts | In the paper, the problem of reverse flow routing (RFR) is examined. The case of gradually varied unsteady flow in an open channel described by the Saint Venant system of equations is considered. The specific difficulties connected with solving the inverse problem are studied and the efficient solution algorithm, based on Space-Time Conservation Method (STC) is presented. The most important features of the proposed scheme are local and global mass conservation and high accuracy, that are of special importance in the case of the reverse flow routing problem. Additionally, the distinguishing feature of the scheme is space and time unification and treating them on the same footing. The way of constructing the computational grid and achieving the final approximation formulas are described in detail. Stability and accuracy analysis, and the numerical examples confirming the good features of the scheme, are developed. Good conformity between the results obtained and required is observed. |
| attributes | [reviewed] [scientific] |
| language | en |