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Assessment of Computational Fluid Dynamic Modeling of Multi-Jet Impingement Cooling and Validation with the Experiments

Tabassum, Sadiya and Hilfer, Michael and Brakmann, Robin and Morsbach, Christian and Willert, Christian and Matha, Marcel and Schroll, Michael (2022) Assessment of Computational Fluid Dynamic Modeling of Multi-Jet Impingement Cooling and Validation with the Experiments. In: ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition, GT 2022, GT2022 (81749), pp. 1-13. Proceedings of ASME 2022 Turbomachinery Technical Conference, 2022-06-13 - 2022-06-17, Rotterdam, The Netherlands. doi: 10.1115/GT2022-81749. ISBN 978-079188612-0.

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Official URL: https://doi.org/10.1115/GT2022-81749


The current study involves numerical and experimental investigations of circular in-line jets impinging on a heated flat plate. The generic configuration is characterized by 9 jets, each with a diameter of D=0.0152 m. The jets are influenced by a self-generating crossflow and are positioned at a nozzle-to-plate distance (H/D) of 5 and a jet pitch (p/D) of 5. The steady Reynolds-Averaged Navier-Stokes (RANS) simulations are performed for turbulent jet Reynolds numbers with the DLR in-house CFD code TRACE. The Menter k-$\omega$ SST model is applied for turbulence modeling and the turbulent scalar fluxes are modeled based on the Reynolds analogy for a constant turbulent Prandtl number. To gain a closer insight into the impingement jet physics, high-resolution near-wall velocity and thermal fields are obtained through Large Eddy Simulations (LES) and measurements from the Particle Image Velocimetry (PIV). Focus is laid on the comparison of RANS results with the LES data and the experimental data. The results exhibit a qualitative similarity between the simulations and the experiments. Furthermore, correlations of the Nusselt number from the literature are used to validate the simulation results.

Item URL in elib:https://elib.dlr.de/187732/
Document Type:Conference or Workshop Item (Speech)
Title:Assessment of Computational Fluid Dynamic Modeling of Multi-Jet Impingement Cooling and Validation with the Experiments
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Hilfer, MichaelUNSPECIFIEDhttps://orcid.org/0000-0002-2881-7130UNSPECIFIED
Morsbach, ChristianUNSPECIFIEDhttps://orcid.org/0000-0002-6254-6979UNSPECIFIED
Willert, ChristianUNSPECIFIEDhttps://orcid.org/0000-0002-1668-0181UNSPECIFIED
Matha, MarcelUNSPECIFIEDhttps://orcid.org/0000-0001-8101-7303UNSPECIFIED
Schroll, MichaelUNSPECIFIEDhttps://orcid.org/0000-0003-0736-546XUNSPECIFIED
Date:28 October 2022
Journal or Publication Title:ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition, GT 2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-13
EditorsEmailEditor's ORCID iDORCID Put Code
Keywords:Heat transfer, CFD, PIV, Impingement cooling, Prallkühlung, Turbine, Kühlung, cooling, internal cooling
Event Title:Proceedings of ASME 2022 Turbomachinery Technical Conference
Event Location:Rotterdam, The Netherlands
Event Type:international Conference
Event Start Date:13 June 2022
Event End Date:17 June 2022
HGF - Research field:Energy
HGF - Program:Materials and Technologies for the Energy Transition
HGF - Program Themes:High-Temperature Thermal Technologies
DLR - Research area:Energy
DLR - Program:E VS - Combustion Systems
DLR - Research theme (Project):E - Combustion and Power Plant Systems, E - Gas Turbine
Location: Göttingen , Köln-Porz
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Experimental Methods, GO
Institute of Propulsion Technology > Numerical Methodes
Institute of Propulsion Technology > Turbine
Institute of Propulsion Technology > Engine Measurement Systems
Institute of Test and Simulation for Gas Turbines > Virtual Engine and Numerical Methods
Deposited By: Brakmann, Robin
Deposited On:15 Aug 2022 15:36
Last Modified:24 Apr 2024 20:49

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