Temat: vortex theory - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Experimental and numerical investigation of small axial turbines
Autorzy:: Chaja, P.
Góralczyk, A.
Koronowicz, T.
Powiązania:: https://bibliotekanauki.pl/articles/1943207.pdf
Data publikacji:: 2010
Wydawca:: Politechnika Gdańska
Tematy:: vortex theory
experiment
turbine
Opis:: The authors conducted a series of experimental studies using a flow tunnel to determine the hydrodynamic characteristics of small axial turbines. The results obtained were confronted with the results obtained from the authors’ own numerical codes based on vortex methods. This article describes the experiment and the numerical method and also discusses the results obtained.
Źródło:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2010, 14, 3; 307-313
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:: Towards the design of low noise level wind turbines
Autorzy:: Chaja, P.
Koronowicz, T.
Powiązania:: https://bibliotekanauki.pl/articles/1943196.pdf
Data publikacji:: 2009
Wydawca:: Politechnika Gdańska
Tematy:: vortex theory
noise
wind turbines
Opis:: According to the authors’ hypothesis generation of high intensity noise is caused by generation of vorticity structures inducing velocities that can be locally higher than the velocity of sound. The localization and magnitude of vorticity concentration can be precisely defined on the basis of a double layer vortex model. Knowing the localization and mechanism of generation of significantly high induced velocities, turbine blades can be shaped in such a way so as to decrease the concentration of vorticity in these zones. According to the hypothesis described in this paper, a modification of turbine blades at the design stage results in their quieter operation for higher loads and wind velocities. The authors base their hypothesis on the experience from design works concerning low noise ship propellers. The following paper focuses on these tasks.
Źródło:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2009, 13, 4; 393-401
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:: Numerical investigation of the flow around wing tips
Autorzy:: Koronowicz, T.
Tuszkowska, T.
Wilczyński, L.
Powiązania:: https://bibliotekanauki.pl/articles/1953943.pdf
Data publikacji:: 2000
Wydawca:: Politechnika Gdańska
Tematy:: vortex theory
lifting surface model
hydrofoil
Opis:: The paper dwells with the problems of modelling the flow around a wing tip and tip vortex cavitation. The theoretical bases of the vorticity method and vorticity calculation models for design and estimation of hydrodynamic characteristics of the hydrofoil are presented. Basic assumptions of a double layer lifting surface model are described. A double layer lifting surface model enables proper modelling of the phenomena occurring in the flow around a hydrofoil tip and especially the generation of a free vortices system.
Źródło:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2000, 4, 2; 203-212
1428-6394
Pojawia się w:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Rationality of solving 3D circulation problems exclusively with the use of the Navier-Stokes equation (Reynolds equation)
Autorzy:: Koronowicz, T.
Powiązania:: https://bibliotekanauki.pl/articles/1986684.pdf
Data publikacji:: 2002
Wydawca:: Politechnika Gdańska
Tematy:: 3D circulation problems
vortex theory
Navier-Stokes equation
Opis:: The paper presents problems connected with solving 3D circulation problems. The existence of vortex singularities in the flow behind a body is a characteristic feature of such problems. The vortices influence the velocity and pressure fields in the vicinity of a body. A proposition of rational merging the methods based on the N-S equation together with vortex methods (based on the vorticity equation) is discussed. Such a connection enables accurate and efficient determination of vortex singularities in the flow behind a body.
Źródło:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2002, 6, 1; 217-224
1428-6394
Pojawia się w:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:: Biblioteka Nauki

Artykuł

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