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TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk

Tytuł artykułu

Optimization of Tip Seal with Honeycomb Land in LP Counter Rotating Gas Turbine Engine

Autorzy Wróblewski, W.  Dykas, S.  Bochon, K.  Rulik, S. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN The goal of the presented work is an optimization of the geometrical configuration of the tip seal with a honeycomb land, to reduce the leakage flow in the counter-rotating LP turbine of a contra-rotating open rotor aero-engine. This goal was achieved with the use of the Ansys-CFX commercial code and an in-house optimization procedure. The detailed studies including the mesh influence, the stages of the computational domain simplification, and geometry variants are discussed. The optimization process is based on a single objective genetic algorithm (SOGA). The automatic grid generation process and the CFD calculations are based on scripts prepared under the Ansys-ICEM and Ansys-CFX software. The whole procedure is written in the Visual Basic for Applications language (VBA), which allows a direct access to the CAD software with the use of macros and allows a proper connection between the CAD environment and the CFD software. The described algorithm allows parallel computing. In addition to the optimization studies, a sensitivity analysis was also performed. For this purpose, the Elementary Effects Method (EEM) was used. This paper was written within the DREAM European project (Validation of Radical Engine Architecture Systems) of the 7th Framework Program of the European Union.
Słowa kluczowe
EN tip seal   LP turbine   honeycomb land   optimization  
Wydawca Centrum Informatyczne Trójmiejskiej Akademickiej Sieci Komputerowej
Czasopismo TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
Rocznik 2010
Tom Vol. 14, No 3
Strony 189--207
Opis fizyczny Bibliogr. 10 poz., rys., tab.
autor Wróblewski, W.
autor Dykas, S.
autor Bochon, K.
autor Rulik, S.
[1] Sprowl T B and Childs DW2007 A Study of the Effects of Inlet Preswirl on the Dynamics Coefficients of a Straight-Bore Honeycomb Gas Damper Seal, ASME Paper GT2004-53328
[2] Takenaga H, Matsuda T and Yokota H 1998 Proc. 8 th Int. Symposium on Flow Visualization Sorrento, Italy, Paper No 33
[3] Denecke J, Farber K, Dullenkopf K and Bauer H J 2005 Dimesional Analysis and Scaling of Rotating Seals, ASME Paper GT2005-68676
[4] Vakili A D, Meganathan A J, Michaud M and Radhakrishnan S 2005 An Experimental and Numerical Study of Labyrinth Seal Flow, ASME Paper GT2005-68224
[5] Choi D C and Rhode D L 2003 Development of a 2-D CFD Approach for Computing 3D Honeycomb Labyrinth Leakage, ASME Paper GT2003-38238
[6] Li J, Yan X, Li G and Feng Z 2007 Effects of Pressure Ratio and Sealing Clearance on Leakage Flow Characteristics in Rotating Honeycomb Labyrinth Seal, ASME Paper GT2007-27740
[7] Soemarwoto B I, Kok J C, de Cock K M J, Kloosterman A B and Kool G A 2007 Performance Evaluation of Gas Turbine Labyrinth Seals Using Computational Fluid Dynamics, ASME Paper GT2007-27905
[8] Nowak G and Wróblewski W 2009 Appl. Thermal Eng. 29 567
[9] Michalewicz Z 1996 Genetic Algorithms + Data Structures = Evolution Programs,WNT, Warsaw (in Polish)
[10] Saltelli A, Ratto M, Andres T, Campolongo F, Cariboni J, Gatelli D, Saisana M and Tarantola S 2008 Global Sensitivity Analysis, John Wiley & Sons Ltd.
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-article-BPG8-0042-0044