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Wyszukujesz frazę "computational fluid dynamics CFD" wg kryterium: Wszystkie pola


Wyświetlanie 1-4 z 4
Tytuł:
A complete design of ship propellers using the new computer system
Autorzy:
Koronowicz, T.
Krzemianowski, Z.
Tuszkowska, T.
Szantyr, J. A.
Powiązania:
https://bibliotekanauki.pl/articles/258618.pdf
Data publikacji:
2009
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ship propellers
design methods
computational fluid dynamics (CFD)
Opis:
The computer system presented in this article is composed of several program blocks for the complete design of ship propellers. The design calculations are based on a combination of the modified lifting line theory and on the vortex lifting surface theory. The system enables solution of the following design problems: - calculation of the scale effect on the ship wake velocity field, including the influence of the propeller and rudder on this field at the propeller location - maximization of the propulsive efficiency - optimization of the propeller blade geometry on the basis of the compromise between the cavitation and blade strength requirements - optimization of the number of propeller blades and blade geometry on the basis of the acceptable level of induced pressure pulses and unsteady shaft bearing forces - calculation of the blade spindle torque for the controllable pitch propellers. The computer system is equipped with many numerical options for graphical visualization of the input data, including an easy possibility of their correction and control of the intermediate and final results of calculations.
Źródło:
Polish Maritime Research; 2009, 1; 29-34
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Critical review of propeller performance scaling methods, based on model experiments and numerical calculations
Autorzy:
Bugalski, T.
Streckwall, H.
Szantyr, J. A.
Powiązania:
https://bibliotekanauki.pl/articles/258844.pdf
Data publikacji:
2013
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
propeller scale effects
open water tests
computational fluid dynamics (CFD)
Opis:
The article presents the results of experimental and numerical investigation of propeller scale effects, undertaken in co-operation of the Hamburg Ship Model Basin (HSVA), Germany, and Ship Design and Research Centre (CTO SA), Poland. The objective of the investigation was to test the adequacy of the methods currently used to account for the propeller scale effect and to develop possible improvement of the methods. HSVA has conducted model experiments in the large cavitation tunnel together with panel method and CFD calculations. CTO SA has performed model experiments in the towing tank, together with lifting surface and CFD calculations. Both institutions have suggested different new approaches to the problem and different new procedures to account for the propeller scale effects. In the article the procedures are presented together with the description of the underlying experimental and theoretical research.
Źródło:
Polish Maritime Research; 2013, 4; 71-79
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A complete design of ducted propellers using the new computer system
Autorzy:
Koronowicz, T.
Krzemianowski, Z.
Tuszkowska, T.
Szantyr, J. A.
Powiązania:
https://bibliotekanauki.pl/articles/258682.pdf
Data publikacji:
2009
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ship propellers
ducted propellers
design methods
computational fluid dynamics (CFD)
Opis:
The computer system for the completed design of the ducted ship propellers has some common blocks and procedures with the analogical system for open propellers that has already been presented in detail in the Polish Maritime Research [1]. This article describes only these blocks and procedures which are specific for the design of ducted propellers. These new blocks concern first of all the procedures for the design calculation of ducted propellers and for the analysis of the ducted propeller operation in the non-uniform velocity field behind the ship hull. The comparative analysis of computation results for different types of ducts is also presented.
Źródło:
Polish Maritime Research; 2009, 2; 34-39
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A complete design of contra-rotating propellers using the new computer system
Autorzy:
Koronowicz, T.
Krzemianowski, Z.
Tuszkowska, T.
Szantyr, J. A.
Powiązania:
https://bibliotekanauki.pl/articles/259381.pdf
Data publikacji:
2010
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ship propellers
contra-rotating propellers
esign methods
computational fluid dynamics (CFD)
Opis:
The computer system for the complete design of the contra-rotating propellers presented in this article has several common blocks and procedures with the systems for design of single propellers and tandem corotating propellers, presented in detail in the Polish Maritime Research No.1 and No.4 of the Volume 16, 2009. In this article only the blocks and procedures developed specially for the contra-rotating propellers are described. The system is based on the lifting line and lifting surface models and on the Computational Fluid Mechanics methods. The comparative analysis of the contra-rotating propellers and the tandem corotating propellers is included.
Źródło:
Polish Maritime Research; 2010, 1; 14-24
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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