Temat: flow hydrodynamics - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Multiphase flow mixture in 180[degrees] pipe bends
Autorzy:: Pietrzak, M.
Witczak, S.
Powiązania:: https://bibliotekanauki.pl/articles/185343.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: hydrodynamics
gas-liquid flow
pipe bends
hydrodynamika
przepływ gazu i cieczy
kolanko
Opis:: This paper presents the results of research regarding measurements of the values of pressure drops during horizontal flow of gas-liquid and gas-liquid-liquid mixture through 180o pipe bends. The conducted insightful analysis and assessment during multi-phase flow in pipe bends has enabled to develop a new method for determination of their values. This new method for determining pressure drops ensures higher precision of calculation in comparison to other methods presented in literature and can be applied for calculation of these parameters during multi-phase flows in pipe bends with various geometries.
Źródło:: Chemical and Process Engineering; 2013, 34, 2; 227-239
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Parametric sensitivity of a CFD model concerning the hydrodynamics of trickle-bed reactor (TBR)
Autorzy:: Janecki, D.
Burghardt, A.
Bartelmus, G.
Powiązania:: https://bibliotekanauki.pl/articles/184944.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: hydrodynamics
trickle-flow regime
pressure gradient
liquid holdup
phases interaction
CFD
hydrodynamika
gradient ciśnienia
Opis:: The aim of the present study was to investigate the sensitivity of a multiphase Eulerian CFD model with respect to relations defining drag forces between phases. The mean relative error as well as standard deviation of experimental and computed values of pressure gradient and average liquid holdup were used as validation criteria of the model. Comparative basis for simulations was our own data-base obtained in experiments carried out in a TBR operating at a co-current downward gas and liquid flow. Estimated errors showed that the classical equations of Attou et al. (1999) defining the friction factors Fjk approximate experimental values of hydrodynamic parameters with the best agreement. Taking this into account one can recommend to apply chosen equations in the momentum balances of TBR.
Źródło:: Chemical and Process Engineering; 2016, 37, 1; 97-107
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

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