Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Alfonsas Rimkus"'
Publikováno v:
Journal of Environmental Engineering and Landscape Management, Vol 21, Iss 3 (2013)
In natural floodplains, the grassed areas usually entrap fine suspended sediments (wash products rich in nutrients) of the floodwater, thus contributing to the process of self-purification. However, hydroelectric power plants (HPPs), built with the p
Externí odkaz:
https://doaj.org/article/67a4b08ec8214560ad6dc9483a82b310
Publikováno v:
Journal of Environmental Engineering and Landscape Management, Vol 19, Iss 3 (2011)
For the further development of suspension flow theory extensive researches are performed in many hydraulic laboratories, as the up-to-date theory is not able to solve many practical problems yet. However, the recent methods of laboratory investigatio
Externí odkaz:
https://doaj.org/article/25900ab43c6446c1a609eed45afa76ef
Autor:
Alfonsas Rimkus
Publikováno v:
Archives of Hydro-Engineering and Environmental Mechanics. 63:281-295
In turbulent flows, several kinds of vortices and their structures are developed. After physical summation al velocities created by them, they intertwine, and the picture obtained from their measurement chronograms is mostly chaotic. Consequently, th
Autor:
Alfonsas Rimkus
Publikováno v:
Journal of Water Security, Vol 1, Pp 14-24 (2015)
In spite of the many investigations that have been conducted on turbulent flows, the generation and development of turbulent vortices has not been investigated sufficiently yet. This prevents to understand well the processes involved in the flow. Tha
Autor:
Alfonsas Rimkus
Publikováno v:
Archives of Hydro-Engineering and Environmental Mechanics. 59:113-135
In spite of many investigations performed on turbulent flows, their structure has not yet been sufficiently explored. The difficulty is that, when a detailed picture of the velocity field is necessary, the widely employed Particle Image Velocity (PIV
Autor:
Saulius Vaikasas, Alfonsas Rimkus
Publikováno v:
Hydrology Research. 41:346-354
The deposition of sediment in the inundated floodplains of rivers, particularly in their deltas, improves the water quality of the rivers themselves and of their receivers. It would be very useful if ways to increase the amount of sediment deposition
Publikováno v:
Irrigation and Drainage. 57:545-554
The mechanical opening of drainage trenches cannot ensure constant drain line slopes. Therefore vertical bends in the pipelines are being formed. Air accumulates in these bends. Consequently the conductivity of collector drains reduces. The air is ca
Publikováno v:
Hydrology Research. 38:151-163
Flooded river valley meadows are very important for river ecology, as they entrap sediments and sediment-bound nitrogen or heavy metals. Nevertheless, the grass-covered floodplains, particularly in river deltas, are often separated from the rivers by
Hydraulic Modelling of Suspended Sediment Deposition in an Inundated Floodplain of the Nemunas Delta
Autor:
Alfonsas Rimkus, Saulius Vaikasas
Publikováno v:
Hydrology Research. 34:519-530
Floods of meadows in the delta of the river Nemunas contribute to the deposition and retention of sediments and nutrient that would otherwise deposit in the Curonian Lagoon. In grassland area of the Nemunas delta the formation of alluvial soil occurs
Publikováno v:
Hydrology Research. 34:493-506
In the process of high expansion of drainage systems and land cultivation, most natural watercourses in Lithuania were converted into drainage channels. They were deprived of all natural riparian vegetation and abiotic conditions that kept up biodive