Optimisation of an idealised primitive equation ocean model using stochastic parameterization

FC Cooper - Ocean Modelling, 2017 - Elsevier
Using a simple parameterization, an idealised low resolution (biharmonic viscosity
coefficient of 5× 10 12 m 4 s− 1, 128× 128 grid) primitive equation baroclinic ocean gyre …

Theoretical comparison of subgrid turbulence in atmospheric and oceanic quasi-geostrophic models

V Kitsios, JS Frederiksen… - Nonlinear Processes in …, 2016 - npg.copernicus.org
Due to the massive disparity between the largest and smallest eddies in the atmosphere and
ocean, it is not possible to simulate these flows by explicitly resolving all scales on a …

On the identification of intense Reynolds stress structures in wall-bounded flows using information-limited two-dimensional planar data

J Soria, V Kitsios, C Atkinson - European Journal of Mechanics-B/Fluids, 2016 - Elsevier
Historically the majority of investigations into the transfer of momentum have been focused
on the classification and statistical analysis of single points of above average Reynolds …

Scale and Reynolds number dependence of stochastic subgrid energy transfer in turbulent channel flow

V Kitsios, JA Sillero, JS Frederiksen, J Soria - Computers & Fluids, 2017 - Elsevier
The forward and inverse cascades in turbulent channel flow are characterised by stochastic
models developed from the statistics of reference direct numerical simulations (DNS) …

Subgrid parameterisations for primitive equation atmospheric models

JS Frederiksen, M Dix, S Osbrough… - ANZIAM Journal, 2014 - journal.austms.org.au
Dynamical and thermodynamical subgrid-scale parameterisations of eddy drain, net
dissipation and stochastic backscatter are calculated for a multi-level primitive equation …

Stochastic self-energy subgrid model for the large eddy simulation of turbulent channel flows

V Kitsios, JA Sillero, J Soria… - Journal of Physics …, 2014 - iopscience.iop.org
This paper presents the large eddy simulation (LES) of turbulent channel flow using a self-
energy (SE) subgrid model with coefficients determined from reference direct numerical …

[PDF][PDF] Estimation of turbulent dissipation rate using 2D data in channel flows

D Bhatia, C Atkinson, V Kitsios… - Proceeding of the 3rd …, 2017 - researchgate.net
The dissipation rate of turbulent kinetic energy is a key parameter in the analysis of turbulent
flows and its accurate determination in experiments is of paramount importance to …

[PDF][PDF] An Analysis of the Errors Associated with the Estimation of Turbulent Dissipation from PIV-type Data in Wall-bounded Flows

DK BHATIA - 2018 - scholar.archive.org
This thesis discusses the impact of finite spatial and dimensional resolution of the velocity
fields provided by most experimental measurement techniques, on the accuracy of the …