Temat: flow dynamics - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Numerical simulations of gap flow above rotating disk
Autorzy:: Wasilczuk, F.
Flaszyński, P.
Doerffer, P.
Powiązania:: https://bibliotekanauki.pl/articles/1938643.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Gdańska
Tematy:: computational fluid dynamics CFD
internal flow
flow control
Opis:: A rotating disk can be considered a basic configuration for the investigations of the impact of various conditions on the flow through the clearance between the shrouded turbine blade and the casing. Numerical calculations using Fine/Turbo Numeca were conducted to examine the influence of the rotational velocity and the pressure difference across the disk on the flow conditions, especially the mass flow through the clearance. The results were validated using the experimental data. Moreover, the flow field was investigated to reveal the vortices induced in the flow. The calculations showed a significant drop of the mass flow with a rise of the rotation velocity. Additionally, the vortex created upstream of the disk at higher rotation velocities was observed. The phenomenon of separation at the edge of the disk was investigated.
Źródło:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2015, 19, 2; 89-100
1428-6394
Pojawia się w:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Numerical investigation of the secondary flow development in turbine cascade
Autorzy:: Doerffer, P.
Rachwalski, J.
Magagnato, F.
Powiązania:: https://bibliotekanauki.pl/articles/1955810.pdf
Data publikacji:: 2001
Wydawca:: Politechnika Gdańska
Tematy:: turbines
computational fluid dynamics CFD
secondary flow
wind turbines
Opis:: The results represent the first attempt of the numerical analysis of 3-D secondary flows formed in the linear turbine cascade wind tunnel. Numerical simulations were carried out by means of the SPRC code. It was possible to make presented here calculations thanks to the cluster of PC's providing sufficient computational resources. In order to be able to verify the obtained results the case considered is the workshop test case (D.G.Gregory-Smith 1994 Turbomachinery Workshop Test Case No.3 116). It has been shown that the obtained results are in a very good agreement with experiment. It gave confidence in the results and several important conclusions concerning the development of streamwise vortices could be made thanks to the work carried out.
Źródło:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2001, 5, 2; 165-178
1428-6394
Pojawia się w:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Transonic flows, shock wave-turbulent boundary layer interaction
Autorzy:: Doerffer, P.
Kaczyński, J.
Powiązania:: https://bibliotekanauki.pl/articles/1953982.pdf
Data publikacji:: 1998
Wydawca:: Politechnika Gdańska
Tematy:: transonic flows
shock waves
turbulent boundary layer interaction
computational fluid dynamics CFD
CFD
flow configurations
profile flow
helicopter rotor
hovering
forward flight
internal flows
Opis:: Shock wave-boundary layer interaction is one of the most important phenomenon in transonic flows. Due to its complexity it is difficult as well for experimental as for numerical study. The growing potential of CFD is therefore of great importance. Different aspects of shock wave-boundary layer interaction should be studied in different flow configurations. Therefore results concerning profile flow, helicopter rotor at hovering and forward flight and internal flows are presented in this paper. These are to illustrate our ability in CFD in general. Besides flow simulation the development of codes is carried out.
Źródło:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 1998, 2, 2; 271-286
1428-6394
Pojawia się w:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:: Biblioteka Nauki

Artykuł

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