Assessment of high-order finite volume methods on unstructured meshes for RANS solutions of aeronautical configurations
Antoniadis, Antonis F. and Tsoutsanis, Panagiotis and Drikakis, Dimitris (2017) Assessment of high-order finite volume methods on unstructured meshes for RANS solutions of aeronautical configurations. Computers and Fluids, 146. pp. 86-104. ISSN 0045-7930 (https://doi.org/10.1016/j.compfluid.2017.01.002)
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Abstract
This paper is concerned with the application of k-exact finite volume methods for compressible Reynolds-Averaged Navier-Stokes computations of flows around aeronautical configurations including the NACA0012, RAE2822, MDA30P30N, ONERA-M6, CRM and DLR-F11. High-order spatial discretisation is obtained with the Weighted Essentially Non-Oscillatory and the Monotone-Upstream Central Scheme for Conservation Laws methods on hybrid unstructured grids in two- and three- dimensions. Schemes of fifth, third and second order comprise the foundation of the analysis, with main findings suggesting that enhanced accuracy can be obtained with at least a third-order scheme. Steady state solutions are achieved with the implicit approximately factored Lower-Upper Symmetric Gauss-Seidel time advancing technique, convergence properties of each scheme are discussed. The Spalart-Allmaras turbulence model is employed where its discretisation with respect to the high-order framework is assessed. A low-Mach number treatment technique is studied, where recovery of accuracy in low speed regions is exemplified. Results are compared with referenced data and discussed in terms of accuracy, grid dependence and computational budget.
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Item type: Article ID code: 59947 Dates: DateEvent26 March 2017Published3 January 2017Published Online1 January 2017AcceptedSubjects: Science > Mathematics > Electronic computers. Computer science
Technology > Mechanical engineering and machineryDepartment: Faculty of Engineering > Mechanical and Aerospace Engineering Depositing user: Pure Administrator Date deposited: 24 Feb 2017 09:30 Last modified: 22 Nov 2024 01:11 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/59947