A single-time two-point closure based on fluid particle displacements
| dc.creator | Bos, Wouter | |
| dc.creator | Bertoglio, Jean-Pierre | |
| dc.date | 2007-12-17 | |
| dc.date.accessioned | 2026-07-07T08:49:31Z | |
| dc.date.available | 2026-07-07T08:49:31Z | |
| dc.description | A new single-time two-point closure is proposed, in which the equation for the two-point correlation between the displacement of a fluid particle and the velocity allows one to estimate a Lagrangian timescale. This timescale is used to specify the nonlinear damping of triple correlations in the closure. A closed set of equations is obtained without ad hoc constants. Taking advantage of the analogy between particle displacements and scalar fluctuations in isotropic turbulence subjected to a mean scalar gradient, the model is numerically integrated. Results for the energy spectrum are in agreement with classical scaling predictions. An estimate for the Kolmogorov constant is obtained. | |
| dc.identifier | https://arxiv.org/abs/0712.2496 | |
| dc.identifier | http://arxiv.org/abs/0712.2496 | |
| dc.identifier | Physics of Fluids 18 (2006) 031706 | |
| dc.identifier | doi:10.1063/1.2185683 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/144326 | |
| dc.subject | Fluid Dynamics | |
| dc.title | A single-time two-point closure based on fluid particle displacements | |
| dc.type | text |