Temat: potential flow - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A Comparison of Simplified Two-dimensional Flow Models Exemplified by Water Flow in a Cavern
Autorzy:: Prybytak, D.
Zima, P.
Powiązania:: https://bibliotekanauki.pl/articles/241287.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:: potential flow
Stokes flow
Navier-Stokes flow
BEM
OpenFOAM
Opis:: The paper shows the results of a comparison of simplified models describing a two-dimensional water flow in the example of a water flow through a straight channel sector with a cavern. The following models were tested: the two-dimensional potential flow model, the Stokes model and the Navier-Stokes model. In order to solve the first two, the boundary element method was employed, whereas to solve the Navier-Stokes equations, the open-source code library OpenFOAM was applied. The results of numerical solutions were compared with the results of measurements carried out on a test stand in a hydraulic laboratory. The measurements were taken with an ADV probe (Acoustic Doppler Velocimeter). Finally, differences between the results obtained from the mathematical models and the results of laboratory measurements were analysed.
Źródło:: Archives of Hydro-Engineering and Environmental Mechanics; 2017, 64, 3-4; 141-154
1231-3726
Pojawia się w:: Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: A note on discrete descriptions of water flows in material variables
Autorzy:: Szmidt, K.
Powiązania:: https://bibliotekanauki.pl/articles/241055.pdf
Data publikacji:: 2005
Wydawca:: Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:: potential motion
vortex flow
material variables
discrete integration
Opis:: The paper describes the problem of discrete formulation of plane fluid flows in material description. The investigation is confined to chosen cases of stationary potential and vortex motion of an incompressible inviscid fluid within circular domains with perfect boundaries. The paths of fluid particles are obtained by numerical integration of momentum equations within a discrete time space. Brownian type random disturbances are attached to the displacement field obtained by the integration. It has been shown, that the discrete formulation may lead to solutions in which a small distance between two material points may grow to a relatively large value after a finite elapse of time. The last feature of the procedure may be a serious drawback of the discrete formulation in the material variables.
Źródło:: Archives of Hydro-Engineering and Environmental Mechanics; 2005, 52, 2; 163-175
1231-3726
Pojawia się w:: Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:: Biblioteka Nauki

Artykuł

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