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Efficient Turbine Cooling Design: From 2D Concept to 3D CAD Modeling

Schöffler, Robin and Lüken, Julian and Nölke, Lukas and Carvalho, Francisco and Grunwitz, Clemens (2023) Efficient Turbine Cooling Design: From 2D Concept to 3D CAD Modeling. International Gas Turbine Congress 2023 Kyoto, 2023-11-26 - 2023-12-01, Kyoto, Japan.

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In order to improve the thermal efficiency of gas turbines, efficient cooling concepts for turbine vanes are becoming increasingly important. However, evaluating the performance of a cooling design is computationally intensive and usually requires a coupled CFD-FEM simulation. This approach is not practical in the early design phase when the cooling design is frequently changed. To overcome this limitation, a simplified yet physical approach is required to develop an initial cooling design. This study presents a comprehensive approach for turbine vane cooling design that is integrated into an optimization tool chain. The model uses a vane geometry model, aerodynamic flow field, and coolant conditions from an internal turbine design tool chain. The cooling geometry is modeled in multiple radial sections using variable geometric parameters to account for variations in airfoil geometry and flow field. Both internal cooling, such as impingement or convective cooling, and external cooling, such as film cooling, are considered. This approach enables significant improvements in cooling design by reducing cooling air requirements as well as optimizing temperature distribution and thus minimizing thermal stresses during the early design phase. Consequently, a detailed 3D model of the vane is created with substantially reduced effort.

Item URL in elib:https://elib.dlr.de/200848/
Document Type:Conference or Workshop Item (Speech)
Title:Efficient Turbine Cooling Design: From 2D Concept to 3D CAD Modeling
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Schöffler, RobinUNSPECIFIEDhttps://orcid.org/0000-0002-0931-9021UNSPECIFIED
Lüken, JulianUNSPECIFIEDhttps://orcid.org/0009-0009-4264-6735UNSPECIFIED
Carvalho, FranciscoUNSPECIFIEDhttps://orcid.org/0000-0002-3069-8345UNSPECIFIED
Grunwitz, ClemensUNSPECIFIEDhttps://orcid.org/0000-0003-4157-7415UNSPECIFIED
Date:November 2023
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Jet Engine; Turbine; Cooling; Optimization; CAD
Event Title:International Gas Turbine Congress 2023 Kyoto
Event Location:Kyoto, Japan
Event Type:international Conference
Event Start Date:26 November 2023
Event End Date:1 December 2023
Organizer:Gas Turbine Society of Japan
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 - Components and Emissions, L - Future Engines and Engine Integration
Location: Göttingen
Institutes and Institutions:Institute of Propulsion Technology > Turbine
Deposited By: Schöffler, Robin
Deposited On:11 Dec 2023 10:35
Last Modified:24 Apr 2024 21:01

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