Imperial College London
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ProfessorJoaquimPeiro

Faculty of Engineering, Department of Aeronautics

Professor of Engineering Computation
 
 
 
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Contact

 

j.peiro Website

 
 
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Location

 

214City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Moxey:2015:10.1016/j.cma.2014.09.019,
author = {Moxey, D and Green, MD and Sherwin, SJ and Peiro, J},
doi = {10.1016/j.cma.2014.09.019},
journal = {Computer Methods in Applied Mechanics and Engineering},
pages = {636--650},
title = {An isoparametric approach to high-order curvilinear boundary-layer meshing},
url = {http://dx.doi.org/10.1016/j.cma.2014.09.019},
volume = {283},
year = {2015}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The generation of high-order curvilinear meshes for complex three-dimensional geometries is presently a challenging topic, particularly for meshes used in simulations at high Reynolds numbers where a thin boundary layer exists near walls and elements are highly stretched in the direction normal to flow. In this paper, we present a conceptually simple but very effective and modular method to address this issue. We propose an isoparametric approach, whereby a mesh containing a valid coarse discretization comprising of high-order triangular prisms near walls is refined to obtain a finer prismatic or tetrahedral boundary-layer mesh. The validity of the prismatic mesh provides a suitable mapping that allows one to obtain very fine mesh resolutions across the thickness of the boundary layer. We describe the method in detail for a high-order approximation using modal basis functions, discuss the requirements for the splitting method to produce valid prismatic and tetrahedral meshes and provide a sufficient criterion of validity in both cases. By considering two complex aeronautical configurations, we demonstrate how highly stretched meshes with sufficient resolution within the laminar sublayer can be generated to enable the simulation of flows with Reynolds numbers of and above.
AU  - Moxey,D
AU  - Green,MD
AU  - Sherwin,SJ
AU  - Peiro,J
DO  - 10.1016/j.cma.2014.09.019
EP  - 650
PY  - 2015///
SN  - 0045-7825
SP  - 636
TI  - An isoparametric approach to high-order curvilinear boundary-layer meshing
T2  - Computer Methods in Applied Mechanics and Engineering
UR  - http://dx.doi.org/10.1016/j.cma.2014.09.019
UR  - http://ac.els-cdn.com/S004578251400334X/1-s2.0-S004578251400334X-main.pdf?_tid=f9e979c8-da00-11e4-ab36-00000aacb35f&acdnat=1428066025_ce3b890704958375c75bb05e2597ca3e
UR  - http://hdl.handle.net/10044/1/19968
VL  - 283
ER  -
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