| DOI | Resolve DOI: https://doi.org/10.1115/GT2010-23390 |
|---|
| Author | Search for: Yang, Hong1; Search for: Jiang, Leiyong1ORCID identifier: https://orcid.org/0009-0008-0777-7919 |
|---|
| Affiliation | - National Research Council Canada. NRC Institute for Aerospace Research
|
|---|
| Format | Text, Article |
|---|
| Conference | ASME Turbo Expo 2010: Power for Land, Sea, and Air, June 14-18, 2010, Glasgow, Scotland, United Kingdom |
|---|
| Subject | boundary-value problems; flow (dynamics); modeling; turbomachinery; inflow; outflow; computational fluid dynamics; algorithms; compressors; engineering systems and industry applications; turbines |
|---|
| Abstract | 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. |
|---|
| Publication date | 2010-12-22 |
|---|
| Publisher | American Society of Mechanical Engineers |
|---|
| In | |
|---|
| Language | English |
|---|
| Peer reviewed | Yes |
|---|
| Export citation | Export as RIS |
|---|
| Report a correction | Report a correction (opens in a new tab) |
|---|
| Record identifier | c2580678-6d74-4ebb-a0ad-449a786e10d4 |
|---|
| Record created | 2024-12-13 |
|---|
| Record modified | 2024-12-13 |
|---|
