Imperial College London
Alternate

DrDavidMoxey

Faculty of Engineering, Department of Aeronautics

Honorary Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 5129d.moxey Website

 
 
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Location

 

363Roderic Hill BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Moxey:2020:10.1016/j.cpc.2019.107110,
author = {Moxey, D and Cantwell, CD and Bao, Y and Cassinelli, A and Castiglioni, G and Chun, S and Juda, E and Kazemi, E and Lackhove, K and Marcon, J and Mengaldo, G and Serson, D and Turner, M and Xu, H and Peiro, J and Kirby, RM and Sherwin, SJ},
doi = {10.1016/j.cpc.2019.107110},
journal = {Computer Physics Communications},
pages = {1--18},
title = {Nektar++: enhancing the capability and application of high-fidelity spectral/hp element methods},
url = {http://dx.doi.org/10.1016/j.cpc.2019.107110},
volume = {249},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Nektar++ is an open-source framework that provides a flexible, high-performance and scalable platform for the development of solvers for partial differential equations using the high-order spectral/ element method. In particular, Nektar++ aims to overcome the complex implementation challenges that are often associated with high-order methods, thereby allowing them to be more readily used in a wide range of application areas. In this paper, we present the algorithmic, implementation and application developments associated with our Nektar++ version 5.0 release. We describe some of the key software and performance developments, including our strategies on parallel I/O, on in situ processing, the use of collective operations for exploiting current and emerging hardware, and interfaces to enable multi-solver coupling. Furthermore, we provide details on a newly developed Python interface that enables a more rapid introduction for new users unfamiliar with spectral/ element methods, C++ and/or Nektar++. This release also incorporates a number of numerical method developments – in particular: the method of moving frames (MMF), which provides an additional approach for the simulation of equations on embedded curvilinear manifolds and domains; a means of handling spatially variable polynomial order; and a novel technique for quasi-3D simulations (which combine a 2D spectral element and 1D Fourier spectral method) to permit spatially-varying perturbations to the geometry in the homogeneous direction. Finally, we demonstrate the new application-level features provided in this release, namely: a facility for generating high-order curvilinear meshes called NekMesh; a novel new AcousticSolver for aeroacoustic problems; our development of a ‘thick’ strip model for the modelling of fluid–structure interaction (FSI) problems in the context of vortex-induced vibrations (VIV). We conclude by commenting on some lessons learned and by discussing some directions fo
AU  - Moxey,D
AU  - Cantwell,CD
AU  - Bao,Y
AU  - Cassinelli,A
AU  - Castiglioni,G
AU  - Chun,S
AU  - Juda,E
AU  - Kazemi,E
AU  - Lackhove,K
AU  - Marcon,J
AU  - Mengaldo,G
AU  - Serson,D
AU  - Turner,M
AU  - Xu,H
AU  - Peiro,J
AU  - Kirby,RM
AU  - Sherwin,SJ
DO  - 10.1016/j.cpc.2019.107110
EP  - 18
PY  - 2020///
SN  - 0010-4655
SP  - 1
TI  - Nektar++: enhancing the capability and application of high-fidelity spectral/hp element methods
T2  - Computer Physics Communications
UR  - http://dx.doi.org/10.1016/j.cpc.2019.107110
UR  - http://arxiv.org/abs/1906.03489v1
UR  - https://www.sciencedirect.com/science/article/pii/S0010465519304175
UR  - http://hdl.handle.net/10044/1/72166
VL  - 249
ER  -
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