Browsing by Subject "Turbulent flow"
Now showing items 21-28 of 28
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Article
Rapidly sheared homogeneous stratified turbulence in a rotating frame
(2007)Rapid distortion theory is applied to stratified homogeneous turbulence that is sheared in a rotating frame. Insight into the stabilizing and destabilizing effects of the combined stratification and frame rotation is gained ...
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Article
A simplified structure-based model using standard turbulence scale equations: computation of rotating wall-bounded flows
(2006)Two linear eddy-viscosity models, the v2-f and k-ω models, have been combined with an algebraic structure-based algorithm for the evaluation of the Reynolds stresses. This closure was originally designed as an integral ...
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Article
Statistical measures of structural anisotropy in MHD turbulence subjected to mean shear and frame rotation
(2006)We consider homogeneous turbulence in a conducting fluid that is exposed to a uniform external magnetic field while being sheared in fixed and rotating frames. We take both the frame-rotation axis and the applied magnetic ...
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Article
Structure and scales in turbulence modeling
(2002)The enstrophy of the large-scale energy-containing turbulence is proposed as the second turbulence scale for use, in conjunction with the turbulence energy, in two-scale one-point engineering turbulence models. Its transport ...
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Article
A structure-based model for the transport of passive scalars in homogeneous turbulent flows
(2016)A structure-based model has been constructed, for the first time, for the study of passive scalar transport in turbulent flows. The scalar variance and the large-scale scalar gradient variance are proposed as the two ...
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Article
Structure-based turbulence model: Application to a rotating pipe flow
(2002)A new approach for modeling the one-point turbulence statistics, which takes into account the information on turbulence structure, has been suggested in Kassinos and Reynolds (Report TF-61, Thermosciences Division, Department ...
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Article
Structure-based turbulence modeling for wall-bounded flows
(2000)The performance of Reynolds stress transport (RST) models in non-equilibrium flows is limited by the lack of information about two dynamically important effects: The role of energy-containing turbulence structure ...
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Article
The transport of a passive scalar in magnetohydrodynamic turbulence subjected to mean shear and frame rotation
(2007)We consider the transport of a passive scalar under the influence of homogeneous turbulence in a conducting fluid that is exposed to a uniform external magnetic field while being sheared in fixed and rotating frames. The ...