| Autor: |
Youhua Wang, Ting Wu, Guowei He |
| Jazyk: |
angličtina |
| Rok vydání: |
2025 |
| Předmět: |
|
| Zdroj: |
Theoretical and Applied Mechanics Letters, Vol 15, Iss 1, Pp 100521- (2025) |
| Druh dokumentu: |
article |
| ISSN: |
2095-0349 |
| DOI: |
10.1016/j.taml.2024.100521 |
| Popis: |
Nonlinear energy transfer is represented through eddy viscosity and stochastic forcing within the framework of resolvent analysis. Previous investigations estimate the contribution of eddy-viscosity-enhanced resolvent operator to nonlinear energy transfer. The present article estimates the contribution of stochastic forcing to nonlinear energy transfer and demonstrates that the contribution of stochastic forcing cannot be ignored. These results are achieved by numerically comparing the eddy-viscosity-enhanced resolvent operator and stochastic forcing with nonlinear energy transfer in turbulent channel flows. Furthermore, the numerical results indicate that composite resolvent operators can improve the prediction of nonlinear energy transfer. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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