Garcia-Mayoral, R and Pierce, B and Wallace, J Off-wall boundary conditions for turbulent flows obtained from buffer-layer minimal flow units. In: 65th Annual Meeting of the Division of Fluid Dynamics of the American Physical Society, 2012-11-18 to 2012-11-20, San Diego, CA, USA.. (Unpublished)Full text not available from this repository.
There is strong evidence that the transport processes in the buffer region of wall-bounded turbulence are common across various flow configurations, even in the embryonic turbulence in transition (Park et al., Phys. Fl. 24). We use this premise to develop off-wall boundary conditions for turbulent simulations. Boundary conditions are constructed from DNS databases using periodic minimal flow units and reduced order modeling. The DNS data was taken from a channel at Reτ=400 and a zero-pressure gradient transitional boundary layer (Sayadi et al., submitted to J. Fluid Mech.). Both types of boundary conditions were first tested on a DNS of the core of the channel flow with the aim of extending their application to LES and to spatially evolving flows.
|Item Type:||Conference or Workshop Item (UNSPECIFIED)|
|Divisions:||Div A > Fluid Mechanics|
|Depositing User:||Cron Job|
|Date Deposited:||07 Mar 2014 12:12|
|Last Modified:||10 Mar 2014 18:09|