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Shape Optimization of Train Head Cars using Adjoint-based Computational Fluid Dynamics

Jakubek, Daria and Wagner, Claus (2013) Shape Optimization of Train Head Cars using Adjoint-based Computational Fluid Dynamics. International Journal of Railway Technology, Vol. 1 (2), pp. 67-88. Saxe-Coburg. doi: 10.4203/ijrt.1.2.4. ISSN 2049-5358.

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Official URL: http://www.ctresources.info/ijrt/paper.html?id=16


The operating conditions of modern high-speed trains require optimized aerodynamic shapes, which can be developed during the design phase using efficient numerical methods. In this context, many of the interesting aerodynamic features can be determined numerically by solving the Reynolds-averaged Navier-Stokes (RANS) equations. The focus of the presented study is to explore how far adjoint-based shape optimization using the continuous approach in conjunction with filtered gradients and CAD-free mesh morphing based on radial basis function interpolation is capable of meeting the requirements of aerodynamic train design. First results considering shape optimization with regard to the generated pressure wave in external flows reveal the feasibility and capability of the developed process chain. This paper is based upon D. Jakubek et al. [1]. The current version includes new results from modified testcases.

Item URL in elib:https://elib.dlr.de/76348/
Document Type:Article
Title:Shape Optimization of Train Head Cars using Adjoint-based Computational Fluid Dynamics
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Jakubek, Dariadaria.jakubek (at) dlr.deUNSPECIFIED
Wagner, Clausclaus.wagner (at) dlr.deUNSPECIFIED
Journal or Publication Title:International Journal of Railway Technology
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Volume:Vol. 1
DOI :10.4203/ijrt.1.2.4
Page Range:pp. 67-88
EditorsEmailEditor's ORCID iD
Pombo, Dr. Joao IDMEC-IST, Lisbon, Portugal UNSPECIFIED
Keywords:high-speed trains, numerical aerodynamics, shape optimization, adjoint methods, mesh morphing, radial basis functions, filtered gradients
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - Projekt Next Generation Train (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Fluid Systems
Deposited By: Jakubek, Daria
Deposited On:17 May 2013 11:03
Last Modified:06 Sep 2019 15:30

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