Dynamic mode decomposition and reconstruction of transient cavitating flows around a Clark-Y hydrofoil
| Autor: | Yiwei Wang, Renfang Huang, Rundi Qiu, Chenguang Huang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Environmental Engineering
Fast Fourier transform Biomedical Engineering Computational Mechanics Aerospace Engineering Ocean Engineering 01 natural sciences 010305 fluids & plasmas Physics::Fluid Dynamics Clark Y 0103 physical sciences Dynamic mode decomposition Reconstructed flow field 010306 general physics Transient cavitating flow Civil and Structural Engineering Physics Mechanical Engineering Mechanics Flow field Dynamic mode decomposition (DMD) Flow (mathematics) Mechanics of Materials lcsh:TA1-2040 Cavitation Transient (oscillation) lcsh:Engineering (General). Civil engineering (General) |
| Zdroj: | Theoretical and Applied Mechanics Letters, Vol 10, Iss 5, Pp 327-332 (2020) |
| ISSN: | 2095-0349 |
| Popis: | The transient cavitating flow around the Clark-Y hydrofoil is numerically investigated by the dynamic mode decomposition with criterion. Based on the ranking dominant modes, frequencies of the first four modes are in good accordance with those obtained by fast Fourier transform. Furthermore, the cavitating flow field is reconstructed by the first four modes, and the dominant flow features are well captured with the reconstructed error below 12% when compared to the simulated flow field. This paper offers a reference for observing and reconstructing the flow fields, and gives a novel insight into the transient cavitating flow features. |
| Databáze: | OpenAIRE |
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