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The temporal evolution of the energy flux across scales in homogeneous turbulence
Citation
Cardesa Dueñas, José Ignacio and Vela Martin, Alberto and Dong, Siwei and Jiménez Sendín, Javier (2015). The temporal evolution of the energy flux across scales in homogeneous turbulence. "Physics of Fluids", v. 27 ; p. 111702. ISSN 1070-6631. https://doi.org/10.1063/1.4935812.
Description
| Title: | The temporal evolution of the energy flux across scales in homogeneous turbulence |
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| Author/s: |
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| Item Type: | Article |
| Título de Revista/Publicación: | Physics of Fluids |
| Date: | 16 November 2015 |
| ISSN: | 1070-6631 |
| Volume: | 27 |
| Subjects: | |
| Faculty: | E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM) |
| Department: | Mecánica de Fluidos y Propulsión Aeroespacial |
| Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
Abstract
A temporal study of energy transfer across length scales is performed in 3D numerical simulations of homogeneous shear flow and isotropic turbulence. The average time taken by perturbations in the energy flux to travel between scales is measured and shown to be additive. Our data suggests that the propagation of disturbances in the energy flux is independent of the forcing and that it defines a ‘velocity’ that determines the energy flux itself. These results support that the cascade is, on average, a scale-local process where energy is continuously transmitted from one scale to the next in order of decreasing size.
Funding Projects
| Type | Code | Acronym | Leader | Title |
|---|---|---|---|---|
| FP7 | 267626 | HECTOR | Unspecified | Microwave-assisted microreactors: development of a highly efficient gas phase contactor with direct catalyst heating |
More information
| Item ID: | 40281 |
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| DC Identifier: | https://oa.upm.es/40281/ |
| OAI Identifier: | oai:oa.upm.es:40281 |
| DOI: | 10.1063/1.4935812 |
| Official URL: | https://aip.scitation.org/doi/10.1063/1.4935812 |
| Deposited by: | Memoria Investigacion |
| Deposited on: | 27 Sep 2016 11:52 |
| Last Modified: | 04 Jun 2019 16:14 |
