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Advanced Numerical Methods For The Prediction Of Tonal Noise In Turbomachinery, Part I: Implicit Runge-Kutta Schemes

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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Abstract

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
Authors:
AuthorsInstitution or Email of Authors
Ashcroft, GrahamUNSPECIFIED
Frey, ChristianUNSPECIFIED
Heitkamp, KathrinUNSPECIFIED
Weckmueller, ChristianUNSPECIFIED
Date:2012
Refereed publication:Yes
In ISI Web of Science:No
Status:Accepted
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
Organizer:ASME
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
Location: Köln-Porz
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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