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Abstrakty
Solving AeroAcoustics (CAA) problems by means of the Direct Numerical Simulation (DNS) or even the Large Eddy Simulation (LES) for a large computational domain is very time consuming and cannot be applied widely for engineering purposes. In this paper in-house CFD and CAA codes are presented. The in-house CFD code is based on the LES approach whereas the CAA code is an acoustic postprocessor solving non-linearized Euler equations for fluctuating (acoustic) variables. These codes are used to solve the pressure waves generated aerodynamically by a flow over a rectangular cavity and by the vortex street behind a turbine blade. The obtained results are discussed with respect to the application of the presented numerical techniques to pressure waves modeling in steam turbine stages.
Słowa kluczowe
Wydawca
Rocznik
Tom
Strony
145--154
Opis fizyczny
Bibliogr. 7 poz., rys.
Twórcy
autor
- Institute of Power Engineering and Turbomachinery, Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland
autor
- Institute of Power Engineering and Turbomachinery, Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland
autor
- Institute of Power Engineering and Turbomachinery, Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland
Bibliografia
- [1] Dykas S, Wróblewski W, Rulik S and Chmielniak T 2010 Archives of Acoustics 35 (1) 35
- [2] Ahuja K K and Mendoza J 1964 Effects of Cavity Dimensions, Boundary Layer, and Temperature on Cavity Noise with Emphasis on Benchmark Data to Validate Computational Aeroacoustic Codes, NASA CR 4653
- [3] Weyna S 2005 Acoustic Energy Dissipation of Real Sources, WNT, Warsaw (in Polish)
- [4] Takeda K and Shieh C M 2013 Int. J. Comput. Fluid Dynamics 18 (6) 439
- [5] Wróblewski W, Dykas S, Gardzilewicz A and Kolovratnik M 2009 ASME J. Fluids Engineering 131 041301-1
- [6] Dykas S, Rulik S and Wróblewski W 2012 Open J. Fluid Dynamics 2 65
- [7] Wróblewski W 2000 Numerical Simulation of Flow Phenomena in Turbines, Silesian University of Technology Publishing, Energetyka, 132 (in Polish)
Typ dokumentu
Bibliografia
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