A framework for the generation of high-order curvilinear hybrid meshes for CFD simulations

File Description SizeFormat 
imr26-paper.pdfPublished version10 MBAdobe PDFDownload
Title: A framework for the generation of high-order curvilinear hybrid meshes for CFD simulations
Author(s): Turner, M
Moxey, D
Peiro, J
Gammon, M
Pollard, CR
Bucklow, H
Item Type: Conference Paper
Abstract: We present a pipeline of state-of-the-art techniques for the generation of high-order meshes that contain highly stretched elements in viscous boundary layers, and are suitable for flow simulations at high Reynolds numbers. The pipeline uses CADfix to generate a medial object based decomposition of the domain, which wraps the wall boundaries with prismatic partitions. The use of medial object allows the prism height to be larger than is generally possible with advancing layer techniques. CADfix subsequently generates a hybrid straight-sided (or linear) mesh. A high-order mesh is then generated a posteriori using NekMesh, a high-order mesh generator within the Nektar++ framework. During the high-order mesh generation process, the CAD definition of the domain is interrogated; we describe the process for integrating the CADfix API as an alternative backend geometry engine for NekMesh, and discuss some of the implementation issues encountered. Finally, we illustrate the methodology using three geometries of increasing complexity: a wing tip, a simplified landing gear and an aircraft in cruise configuration.
Editor(s): Owen, S
Roca, X
Mitchell, SA
Publication Date: 18-Oct-2017
Date of Acceptance: 1-Oct-2017
URI: http://hdl.handle.net/10044/1/58440
DOI: https://dx.doi.org/10.1016/j.proeng.2017.09.808
ISSN: 1877-7058
Publisher: ELSEVIER SCIENCE BV
Start Page: 206
End Page: 218
Journal / Book Title: 26TH INTERNATIONAL MESHING ROUNDTABLE, (IMR26 2017)
Volume: 203
Copyright Statement: © 2017 The Author(s). Published by Elsevier Ltd. Available under a Creative Commons license (https://creativecommons.org/licenses/by-nc-nd/4.0/)
Conference Name: 26th International Meshing Roundtable (IMR)
Keywords: Science & Technology
Technology
Physical Sciences
Engineering, Multidisciplinary
Mathematics, Interdisciplinary Applications
Mechanics
Engineering
Mathematics
High-order curvilinear meshes
CAD interface
Medial-object domain decomposition
Isoparametric bounday-layer meshing
Science & Technology
Technology
Physical Sciences
Engineering, Multidisciplinary
Mathematics, Interdisciplinary Applications
Mechanics
Engineering
Mathematics
High-order curvilinear meshes
CAD interface
Medial-object domain decomposition
Isoparametric bounday-layer meshing
MD Multidisciplinary
Publication Status: Published
Start Date: 2017-09-18
Finish Date: 2017-09-21
Conference Place: Barcelona, SPAIN
Appears in Collections:Faculty of Engineering
Aeronautics



Items in Spiral are protected by copyright, with all rights reserved, unless otherwise indicated.

Creative Commons