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Simulation of the flow over a roughness element

Jacobitz, Frank and Sysyn, Ian and Ryan, Jacob and Comfort, Jack and Poole, Dylan and Lemarechal, Jonathan and Costantini, Marco (2023) Simulation of the flow over a roughness element. In: 93rd ANNUAL MEETING PROGRAM WITH ABSTRACTS, p. 37. 2023 Joint Meeting - Reconnecting Regionally, 2023-03-21 - 2023-03-24, Bellingham, Washington State, USA.

Full text not available from this repository.

Official URL: https://aaaspd.org/assets/docs/Proceedings/2023_proceedings.pdf

Abstract

Simulations using Ansys Fluent are performed in order to study the interaction of a Blasius boundary layer developing on a flat surface with a cylindrical roughness element of small aspect ratio and a height smaller than the local boundary layer thickness. The goal of the simulations is a comparison with experiments performed in a laminar water channel by means of temperature-sensitive paint (TSP) (J. Lemarechal et al., 2018). Two cases are considered: First, the development of a Blasius boundary layer over a heated flat plate. Second, the interaction of the boundary layer with a roughness element. For the first case, the simulation results for the downstream development of the surface temperature agree with those obtained from the experiments. For the second case, the flow develops a horseshoe-shaped vortical structure around the roughness element as well as a recirculation zone directly downstream of the roughness element. Again, the flow structure observed in the simulation agrees qualitatively and quantitatively with the thermal footprint of the flow structure determined experimentally using TSP.

Item URL in elib:https://elib.dlr.de/196207/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Proceedings link: https://aaaspd.org/assets/docs/Proceedings/2023_proceedings.pdf
Title:Simulation of the flow over a roughness element
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Jacobitz, FrankUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sysyn, IanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ryan, JacobUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Comfort, JackUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Poole, DylanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lemarechal, JonathanUNSPECIFIEDhttps://orcid.org/0000-0002-3333-2664UNSPECIFIED
Costantini, MarcoUNSPECIFIEDhttps://orcid.org/0000-0003-0642-0199UNSPECIFIED
Date:March 2023
Journal or Publication Title:93rd ANNUAL MEETING PROGRAM WITH ABSTRACTS
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:p. 37
Series Name:PROCEEDINGS of the NORTHWEST SCIENTIFIC ASSOCIATION and PACIFIC DIVISION of the AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE
Status:Published
Keywords:Roughness; Flat Plate; Blasius Boundary Layer; Temperature-Sensitive Paint
Event Title:2023 Joint Meeting - Reconnecting Regionally
Event Location:Bellingham, Washington State, USA
Event Type:international Conference
Event Start Date:21 March 2023
Event End Date:24 March 2023
Organizer:Northwest Scientific Association, American Association for the Advancement of Science - Pacific Division,and Northwest Lichenologists
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
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Experimental Methods, GO
Deposited By: Micknaus, Ilka
Deposited On:28 Jul 2023 15:04
Last Modified:24 Apr 2024 20:56

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