DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

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 (2023) Assessment of Computational Fluid Dynamic Modeling of Multi-Jet Impingement Cooling and Validation With the Experiments. Journal of Turbomachinery, 145 (8), pp. 1-11. American Society of Mechanical Engineers (ASME). doi: 10.1115/1.4056715. ISSN 0889-504X.

Full text not available from this repository.

Official URL: https://doi.org/10.1115/1.4056715


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 nine 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 in-house CFD code TRACE. The Menter k–ω shear stress transport (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 (LESs) and measurements from 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/196358/
Document Type:Article
Additional Information:EISSN 1528-8900; Artikel: 071002; Published: February 10, 2023
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
Brakmann, RobinUNSPECIFIEDhttps://orcid.org/0000-0003-3598-0742UNSPECIFIED
Morsbach, ChristianUNSPECIFIEDhttps://orcid.org/0000-0002-6254-6979UNSPECIFIED
Willert, ChristianUNSPECIFIEDhttps://orcid.org/0000-0002-1668-0181UNSPECIFIED
Matha, MarcelUNSPECIFIEDhttps://orcid.org/0000-0001-8101-7303UNSPECIFIED
Date:19 January 2023
Journal or Publication Title:Journal of Turbomachinery
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 1-11
Publisher:American Society of Mechanical Engineers (ASME)
Series Name:ASME, Digital Collecetion
Keywords:computational fluid dynamics (CFD), fluid dynamics and heat transfer phenomena in compressor and turbine components of gas turbine engines, heat transfer and impingement jet cooling
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Efficient Vehicle
DLR - Research area:Aeronautics
DLR - Program:L EV - Efficient Vehicle
DLR - Research theme (Project):L - Virtual Aircraft and  Validation, E - Combustion and Power Plant Systems
Location: Göttingen , Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Turbine
Institute for Aerodynamics and Flow Technology > Experimental Methods, GO
Institute of Propulsion Technology > Engine Measurement Systems
Institute of Propulsion Technology > Numerical Methodes
Deposited By: Micknaus, Ilka
Deposited On:07 Aug 2023 08:57
Last Modified:18 Oct 2023 13:30

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.