Temat: drying-wetting - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Studies on water transport in quasi two-dimensional porous systems using neutron radiography
Autorzy:: Fijał-Kirejczyk, Izabela M.
Rogante, Massimo
Milczarek, Jacek J.
Żołądek-Nowak, Joanna
Jurkowski, Zdzisław
Żołądek, Jan
Rusinek, Dariusz
Powiązania:: https://bibliotekanauki.pl/articles/2105332.pdf
Data publikacji:: 2022
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: water transport
drying
fractal
neutron radiography
wettability
wicking
wetting
Opis:: The spontaneous wetting and drying of flat porous samples of linen, cotton and synthetic textiles were studied using dynamic neutron radiography (DNR). The progress of the wetting process of the media was delineated from the obtained neutron dynamical radiography images. The results of the investigation reveal a non-classical behaviour of kinetics of wicking of these materials. The character of the wetting kinetics is discussed in terms of the fractal character of the tortuosity of fabric capillaries.
Źródło:: Nukleonika; 2022, 67, 1; 3--9
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Flow patterns for drying and wetting of a retention reservoir bed - numerical modeling
Autorzy:: Hachaj, P.S.
Tutro, M.
Powiązania:: https://bibliotekanauki.pl/articles/61026.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:: flow pattern
drying
wetting
retention reservoir
water quality
water dynamics
numerical simulation
numerical modelling
Opis:: This paper deals with one of the aspects important from the point of view of water quality maintenance in storage reservoirs, namely the dynamics of water currents that accompany changes of the water surface elevation in such reservoirs. Numerical simulations were conducted to back observations that high discharges are in the long term beneficial to water quality in the reservoir. Calculations made using the AdH finite elements model confirmed that the water current pattern in shallow regions varies greatly with the total discharge value. The sample analysis shown in this article concerns a mid-size storage reservoir of Tresna located in southern Poland. It appears that for small discharges the currents that wet some areas of the previously dry reservoir bed are similar to reversed currents that occur when the area is dried. Thus some amounts of water may move from one stagnant area to another forth and back and then the water exchange is limited. It means that it is not enough to lower the water level within the reservoir steering rules and then raise it again to be assured that the water quality improves in the reservoir, especially in the lull parts. But for higher discharges the current pattern is different and the exchange of the reservoir water really does happen. In most cases in order to “flush” a reservoir that way one could just wait for high water to come, but if reservoirs form a cascade creating an artificial controlled freshet that propagates down the cascade may be a considerable means of altering water quality in lower reservoirs.
Źródło:: Infrastruktura i Ekologia Terenów Wiejskich; 2014, IV/3
1732-5587
Pojawia się w:: Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:: Biblioteka Nauki

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