Journal article
Large-eddy simulation of the flow past a circular cylinder at sub- to super-critical Reynolds numbers
Applied ocean research, Vol.59, pp.663-675
09/2016
DOI: 10.1016/j.apor.2015.11.013
Abstract
Large-eddy simulation of turbulent flow past a circular cylinder at sub- to super-critical Reynolds numbers is performed using a high-fidelity orthogonal curvilinear grid solver. Verification studies investigate the effects of grid resolution, aspect ratio and convection scheme. Monotonic convergence is achieved in grid convergence studies. Validation studies use all available experimental benchmark data. Although the grids are relatively large and fine enough for sufficiently resolved turbulence near the cylinder, the grid uncertainties are large indicating the need for even finer grids. Large aspect ratio is required for sub-critical Reynolds number cases, whereas small aspect ratio is sufficient for critical and super-critical Reynolds number cases. All the experimental trends were predicted with reasonable accuracy, in consideration the large facility bias, age of most of the data, and differences between experimental and computational setup in particular free stream turbulence and roughness. The largest errors were for under prediction of turbulence separation.
Details
- Title: Subtitle
- Large-eddy simulation of the flow past a circular cylinder at sub- to super-critical Reynolds numbers
- Creators
- Seong Mo YeonJianming Yang - University of IowaFrederick Stern - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Applied ocean research, Vol.59, pp.663-675
- DOI
- 10.1016/j.apor.2015.11.013
- ISSN
- 0141-1187
- eISSN
- 1879-1549
- Grant note
- DOI: 10.13039/100000006, name: Office of Naval Research; DOI: 10.13039/100000006, name: Office of Naval Research, award: N000141-01-00-1-7
- Language
- English
- Date published
- 09/2016
- Academic Unit
- IIHR--Hydroscience and Engineering; Mechanical Engineering
- Record Identifier
- 9984195174002771
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