| ATTRIBUTE | VALUE |
|---|
| type | A |
| database id | 8683 |
| title | Impact of energy slope averaging methods on numerical solution of 1D steady gradually varied flow |
| authors | Artichowicz W., Prybytak D. |
| pages | 101 — 119 |
| full text link | http://www.ibwpan.gda.pl/storage/app/media/ahem/ahem62str101.pdf |
| keywords | standard step method, numerical integration, initial value problem, ordinary differential equation, open channel, steady gradually varied flow, energy slope |
| affiliations | - Gdańsk University of Technology, Faculty of Civil and Environmental Engineering, ul. G. Narutowicza 11/12, 80-233 Gdańsk, Poland, e-mail: wojartic@pg.gda.pl
|
| abstracts | In this paper, energy slope averaging in the one-dimensional steady gradually varied flow
model is considered. For this purpose, different methods of averaging the energy slope between
cross-sections are used. The most popular are arithmetic, geometric, harmonic and hydraulic
means. However, from the formal viewpoint, the application of different averaging formulas
results in different numerical integration formulas. This study examines the basic properties
of numerical methods resulting from different types of averaging. |
| attributes | [reviewed] [scientific] |
| language | en |
| ATTRIBUTE | VALUE |
|---|
| type | A |
| database id | 8445 |
| title | Compaction/liquefaction properties of some model sands |
| authors | Sawicki A., Mierczyński J., Sławińska J. |
| pages | 121 — 133 |
| notes | Kopia w oprac. Tp4425 |
| full text link | http://www.ibwpan.gda.pl/storage/app/media/ahem/ahem62str121.pdf |
| keywords | soil compaction, liquefaction, parameters, experimental data |
| affiliations | - Institute of Hydro-Engineering, Polish Academy of Sciences, ul. Kościerska 7, 80-328 Gdańsk, Poland, e-mails: as@ibwpan.gda.pl, mier@ibwpan.gda.pl, stynaju@ibwpan.gda.pl
|
| abstracts | The compaction/liquefaction characteristics of two model sands are determined experimen-
tally. One sand (Istanbul) is used in shaking table investigations, and the other (Dundee) in
geotechnical centrifuge experiments. Both types of these highly sophisticated experiments are
planned to be applied to test theories of seabed liquefaction. The first step of these experiments
is to determine the parameters of model soils, which is the main goal of this paper. |
| attributes | [reviewed] [scientific] |
| language | en |
| points | 14 |
| ATTRIBUTE | VALUE |
|---|
| type | A |
| database id | 8682 |
| title | Experimental analysis of horizontal turbulence of flow over flat and deformed beds |
| authors | Termini D. |
| pages | 77 — 99 |
| full text link | http://www.ibwpan.gda.pl/storage/app/media/ahem/ahem62str077.pdf |
| keywords | open-channel flow, flow turbulence structure, burst cycle, bed forms, laboratory research |
| affiliations | - Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali – University of Palermo; Viale delle Scienze, 90128 Palermo – Italy, Tel: ++39/091/23896522; e-mail: donatella.termini@unipa.it
|
| abstracts | Laboratory experiments in a straight flume were carried out to examine the evolution of
large-scale horizontal turbulent structures under flat-bed and deformed-bed conditions. In this
paper, the horizontal turbulence of flow under these conditions is analyzed and compared. The
conditioned quadrant method is applied to verify the occurrence of turbulent events. The dis-
tributions of horizontal Reynolds shear stress and turbulent kinetic energy are also presented
and discussed. Results show the occurrence of an “initial” sequence of horizontal vortices
whose average spatial length scales with the channel width. Under deformed-bed conditions,
this spatial length does not change. |
| attributes | [reviewed] [scientific] |
| language | en |