Advances in Mesh Generation

Lead Research Organisation: Swansea University
Department Name: School of Engineering

Abstract

Within the past two decades, scientific computing has become an important contributor to all scientific research programmes. It is particularly important for the solution of research problems that are either insoluble by traditional theoretical and experimental approaches or are hazardous to study in the laboratory, time consuming or expensive to solve by traditional means. However, critical to many areas of computation is the ability to represent a geometry and problem domain in a discretised manner. This important and critical step is the generation of a suitable computational mesh. For simple test problems, the generation of a suitable mesh is trivial, but, for most problems of practical interest, the generation of a mesh is a significant challenge. Whilst major progress has been made, it is still the case that the major problems encountered, when applying computational methods to new and emerging areas of science and engineering, often involve the generation of a suitable mesh. It is also worth emphasising that the most common source of failures during a simulation can frequently be traced to an inadequate mesh, while the accuracy of a simulation is highly dependent upon the mesh quality.Past developments within the Group have been applied to a diverse setof problems in many fields, including aerospace, automotive, electronics, biomechanics, construction, geography, geotechnics and oil reservoir modelling. A particularly successful application area has been the aerospace industry, with its design requirement for accurate, rapid analysis of flows over aircraft configurations.A clear strategy of the Group has been to pursue the use of unstructured mesh technology driven by applications. Applications provide the challenges that highlight deficiencies in a method that then leads to basic research and theoretical understanding that will then result in an enhanced capability.The proposed work will address many of the deficiencies that are currently restricting the wider use of computational simulation. In particular, problems associated with geometries will be emphasised and new and innovative techniques will be investigated for their solution. Furthermore, new methods of generating high quality meshes that can maximise the efficiency of solution algorithms will be explored. These developments will be made available through the use of recent developments in computer technology, such as the GRID and web services.

Publications

10 25 50

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Gil A (2010) A discrete geometric conservation law (DGCL) for a cell vertex finite-volume algorithm on moving domains in International Journal for Numerical Methods in Biomedical Engineering

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Gil A (2010) The Immersed Structural Potential Method for haemodynamic applications in Journal of Computational Physics

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Sazonov I (2006) A stitching method for the generation of unstructured meshes for use with co-volume solution techniques in Computer Methods in Applied Mechanics and Engineering

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Sevilla R (2013) An analysis of the performance of a high-order stabilised finite element method for simulating compressible flows in Computer Methods in Applied Mechanics and Engineering

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Sevilla R (2016) The generation of triangular meshes for NURBS-enhanced FEM THE GENERATION OF TRIANGULAR MESHES FOR NURBS-ENHANCED FEM in International Journal for Numerical Methods in Engineering

 
Description generation of Co-volume meshes

Anisotropic mesh generation

High order mesh generation
Exploitation Route Used in EU project

Used in EPSRC project

Used in industrial projects
Sectors Aerospace, Defence and Marine,Digital/Communication/Information Technologies (including Software)

 
Description The prove of many concepts that led to further industrial and research funding.
Sector Aerospace, Defence and Marine,Digital/Communication/Information Technologies (including Software)
Impact Types Economic

 
Description Airbus Group
Amount £79,421 (GBP)
Funding ID 1100006270 
Organisation Airbus Group 
Sector Private
Country France
Start 04/2006 
End 03/2007
 
Description Airbus Group
Amount £76,316 (GBP)
Funding ID 45276704-616-51 
Organisation Airbus Group 
Sector Private
Country France
Start 02/2008 
End 01/2009
 
Description Airbus/WG
Amount £276,000 (GBP)
Organisation Airbus Group 
Department EADS Innovation Works
Sector Private
Country United Kingdom
Start 01/2017 
End 12/2019
 
Description EPSRC 2007
Amount £268,281 (GBP)
Funding ID EP/E057233/1 
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Academic/University
Country United Kingdom
Start 04/2007 
End 03/2010
 
Description EPSRC 2007b
Amount £910,528 (GBP)
Funding ID EP/F032617/1 
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Academic/University
Country United Kingdom
Start 07/2007 
End 06/2010
 
Description European Commission (EC)
Amount £165,000 (GBP)
Funding ID AST5-CT-2006-030719 
Organisation European Commission 
Sector Public
Country European Union (EU)
Start 09/2007 
End 08/2010
 
Description Institute of High Performance Computing
Amount £24,000 (GBP)
Organisation Institute of High Performance Computing 
Sector Public
Country Singapore
Start 04/2011 
End 03/2015
 
Description Institute of High Performance Computing
Amount £120,000 (GBP)
Funding ID 4514002206 
Organisation Institute of High Performance Computing 
Sector Public
Country Singapore
Start  
 
Description Institute of High Performance Computing Singapore
Amount £25,000 (GBP)
Organisation Institute of High Performance Computing 
Sector Public
Country Singapore
Start 04/2016 
End 03/2020
 
Description Welsh Assembly Government
Amount £260,862 (GBP)
Funding ID HE09COL1032 
Organisation Government of Wales 
Sector Public
Country United Kingdom
Start 04/2010 
End 03/2013
 
Description Airbus 
Organisation Airbus Group
Country France 
Sector Private 
PI Contribution Improving the meshing capability of Airbus
Collaborator Contribution Providing test cases
Impact New improved software to the company
Start Year 2007
 
Description EADS 
Organisation Airbus Group
Department Airbus Defence & Space
Country Germany 
Sector Private 
PI Contribution Improving the meshing capability of Cassidian
Collaborator Contribution Providing test cases
Impact New software delivered to the company
Start Year 2009
 
Description IHPC 
Organisation Abbott
Department Abbott UK
Country United Kingdom 
Sector Private 
PI Contribution Providing software and the supervision of a PhD student
Collaborator Contribution Provide funding to the student and high performance computer facilities
Impact Publication submitted Conference presentations New software
Start Year 2012
 
Title Co-Volume Meshes 
Description Generation of 2D meshes that enable the use of co-volume techniques on unstructured meshes 
Type Of Technology Software 
Year Produced 2008 
Open Source License? Yes  
Impact Sparked interest from BAE System Lead to a new EPSRC software Used in Collaboration with TUDOR Institute 
 
Title High Order Meshes 
Description Generation of Meshes that enable the application of high order numerical scheme 
Type Of Technology Software 
Year Produced 2012 
Impact Results were provided to a European project where the project would not have been completed without our software