Klose, Björn and Morsbach, Christian and Bergmann, Michael and Hergt, Alexander and Klinner, Joachim and Grund, Sebastian and Kügeler, Edmund (2023) A Numerical Test Rig for Turbomachinery Flows Based on Large Eddy Simulations With a High-Order Discontinuous Galerkin Scheme - Part II: Shock Capturing and Transonic Flows. ASME Journal of Turbomachinery, 146 (2). American Society of Mechanical Engineers (ASME). doi: 10.1115/1.4063827. ISSN 0889-504X.
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Abstract
In the second paper of this three-part series, we focus on the simulation of transonic test cases for turbomachinery applications using a high-order discontinuous Galerkin spectral element method (DGSEM). High-fidelity simulations of transonic compressors and turbines are particularly challenging, as they typically occur at high Reynolds numbers and require additional treatment to reliably capture the shock waves characterizing such flows. A recently developed finite-volume subcell shock capturing scheme tailored for the DGSEM is applied and evaluated with regard to the shock sensor. To this end, we conduct implicit large eddy simulations of a high-pressure turbine cascade from the public literature and a transonic compressor cascade measured at the German Aerospace Center, both at a high Reynolds number above 10E6. Based on the results, we examine modal-energy and flow-feature based shock indicator functions, compare the simulation data to experimental and numerical studies, and present an analysis of the unsteady features of the flows.
Item URL in elib: | https://elib.dlr.de/199343/ | ||||||||||||||||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||||||||||||||||
Title: | A Numerical Test Rig for Turbomachinery Flows Based on Large Eddy Simulations With a High-Order Discontinuous Galerkin Scheme - Part II: Shock Capturing and Transonic Flows | ||||||||||||||||||||||||||||||||
Authors: |
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Date: | 13 November 2023 | ||||||||||||||||||||||||||||||||
Journal or Publication Title: | ASME Journal of Turbomachinery | ||||||||||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||||||||||||||||
Volume: | 146 | ||||||||||||||||||||||||||||||||
DOI: | 10.1115/1.4063827 | ||||||||||||||||||||||||||||||||
Publisher: | American Society of Mechanical Engineers (ASME) | ||||||||||||||||||||||||||||||||
ISSN: | 0889-504X | ||||||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||||||
Keywords: | large eddy simulation, discontinuous Galerkin spectral element method, transonic flow, shock capturing, computational fluid dynamics (CFD), fluid dynamics and heat transfer phenomena in compressor and turbine components of gas turbine engines | ||||||||||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||||||||||
HGF - Program: | Aeronautics | ||||||||||||||||||||||||||||||||
HGF - Program Themes: | Clean Propulsion | ||||||||||||||||||||||||||||||||
DLR - Research area: | Aeronautics | ||||||||||||||||||||||||||||||||
DLR - Program: | L CP - Clean Propulsion | ||||||||||||||||||||||||||||||||
DLR - Research theme (Project): | L - Virtual Engine | ||||||||||||||||||||||||||||||||
Location: | Köln-Porz | ||||||||||||||||||||||||||||||||
Institutes and Institutions: | Institute of Test and Simulation for Gas Turbines > Virtual Engine and Numerical Methods Institute of Propulsion Technology > Numerical Methodes Institute of Propulsion Technology > Fan and Compressor Institute of Propulsion Technology > Engine Measurement Systems | ||||||||||||||||||||||||||||||||
Deposited By: | Klose, Björn | ||||||||||||||||||||||||||||||||
Deposited On: | 20 Nov 2023 07:07 | ||||||||||||||||||||||||||||||||
Last Modified: | 20 Nov 2023 07:07 |
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