Ashcroft, Graham and Frey, Christian and Heitkamp, Kathrin and Weckmueller, Christian (2012) Advanced Numerical Methods For The Prediction Of Tonal Noise In Turbomachinery, Part I: Implicit Runge-Kutta Schemes. ASME Turbo Expo 2012: Power for Land, Sea and Air, 11-15 Jun 2012, Copenhagen, Denmark.
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This is the first part of a series of two papers on unsteady CFD methods for the numerical simulation of aerodynamic noise generation and propagation. In this part, the stability, accuracy and efficiency of implicit Runge-Kutta schemes for the temporal integration of the compressible Navier-Stokes equations are investigated in the context of a CFD code for turbomachinery applications. Using two model academic problems, the properties of two Explicit first stage, Singly Diagonal Implicit Runge-Kutta (ESDIRK) schemes of second- and third-order accuracy are quantified and compared with more conventional second-order multi-step methods. Finally, to assess the ESDIRK schemes in the context of an industrially relevant configuration, the schemes are applied to predict the tonal noise generation and transmission in a modern high bypass ratio fan stage and comparisons with the corresponding experimental data are provided.
|Document Type:||Conference or Workshop Item (Paper)|
|Title:||Advanced Numerical Methods For The Prediction Of Tonal Noise In Turbomachinery, Part I: Implicit Runge-Kutta Schemes|
|In ISI Web of Science:||No|
|Keywords:||CFD, Tonal Noise, Implicit Runge-Kutta, High-Order Methods|
|Event Title:||ASME Turbo Expo 2012: Power for Land, Sea and Air|
|Event Location:||Copenhagen, Denmark|
|Event Type:||international Conference|
|Event Dates:||11-15 Jun 2012|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Simulation & Validation|
|Institutes and Institutions:||Institute of Propulsion Technology > Numerical Methodes|
Institute of Propulsion Technology > Engine Acoustic
Institute of Propulsion Technology > Fan and Compressor
|Deposited By:||Dr.(PH.D.) Graham Ashcroft|
|Deposited On:||06 Aug 2012 07:55|
|Last Modified:||06 Aug 2012 07:55|
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