| DOI | Trouver le DOI : https://doi.org/10.1115/GT2010-23390 |
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| Auteur | Rechercher : Yang, Hong1; Rechercher : Jiang, Leiyong1Identifiant ORCID : https://orcid.org/0009-0008-0777-7919 |
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| Affiliation | - Conseil national de recherches Canada. Institut de recherche aérospatiale du CNRC
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| Format | Texte, Article |
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| Conférence | ASME Turbo Expo 2010: Power for Land, Sea, and Air, June 14-18, 2010, Glasgow, Scotland, United Kingdom |
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| Sujet | boundary-value problems; flow (dynamics); modeling; turbomachinery; inflow; outflow; computational fluid dynamics; algorithms; compressors; engineering systems and industry applications; turbines |
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| Résumé | Although unstructured grids have gained wide acceptance in many engineering applications, they still suffer from difficulties in achieving high accuracy at the inflow, outflow and mixing-plane interface boundaries of multi-stage turbomachinery configurations. To overcome these difficulties and hence to increase the accuracy of unstructured grid methods, a novel dual mesh approach is proposed. In contrast to conventional CFD techniques, the dual mesh approach works on two sets of meshes at the boundaries: one is the original mesh and the other is an auxiliary surface mesh created at run time. By properly coupling of such double meshes, the dual mesh approach can effectively increase the accuracy and conservation of the solutions at the inflow, outflow and mixing-plane interface boundaries, and it can also enjoy most of the sophisticated numerical algorithms originally developed for the structured-grid boundary conditions. With both compressor and turbine test cases, the dual mesh approach is demonstrated to be superior to the conventional method while its CPU-time penalty is marginal. Additionally the dual mesh approach may be also useful for any structured CFD solvers subject to some restrictions on the structured grid distributions at the inflow, outflow and mixing-plane interface boundaries, e.g. mesh uniformity in the circumferential direction. |
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| Date de publication | 2010-12-22 |
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| Maison d’édition | American Society of Mechanical Engineers |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | c2580678-6d74-4ebb-a0ad-449a786e10d4 |
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| Enregistrement créé | 2024-12-13 |
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| Enregistrement modifié | 2024-12-13 |
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