Results 241 to 250 of about 4,094,616 (298)
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Journal of Physical Oceanography, 1988
Abstract A unified theory of frontogenesis in mixed layers is proposed. Analytical solutions of the nonlinear mass and density balances in a mixed layer are found in the Lagrangian frame for a wide class of entrainment parameterizations. These solutions show mixed-layer depth and density to be functions of particle position and separation, where mixing
Daniel L. Rudnick, Russ E. Davis
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Abstract A unified theory of frontogenesis in mixed layers is proposed. Analytical solutions of the nonlinear mass and density balances in a mixed layer are found in the Lagrangian frame for a wide class of entrainment parameterizations. These solutions show mixed-layer depth and density to be functions of particle position and separation, where mixing
Daniel L. Rudnick, Russ E. Davis
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Modelling of compressibility effects in mixing layers
Journal of Turbulence, 2002The ability of turbulence models to predict self-similar mixing layers is investigated. The influence of velocity is well captured but no model reproduces the sensitivity of the mixing layer to density differences. A correction proposed for boundary layer flows hardly affects mixing layer predictions.
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A non-resonant triad on a mixing layer
Fluid Dynamics Research, 2002Summary: We consider the weakly nonlinear spatial evolution of a disturbance consisting of a plane wave and a pair of oblique waves inclined at an angle \(\theta\) other than \(60^{\circ}\) superimposed on an inviscid mixing layer, with each wave being slightly amplified on a linear basis.
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Deep Sea Research Part A. Oceanographic Research Papers, 1980
Abstract The surface topography of the equatorial ocean responds rapidly to changes in the zonal wind stress. Gill noted that the changes are not restricted to within a radius of deformation of the first baroclinic mode in the western Pacific Ocean, contrary to previous thought on the equatorial ocean.
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Abstract The surface topography of the equatorial ocean responds rapidly to changes in the zonal wind stress. Gill noted that the changes are not restricted to within a radius of deformation of the first baroclinic mode in the western Pacific Ocean, contrary to previous thought on the equatorial ocean.
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1991
Despite important efforts of many scientists over the decades, turbulence continues to persist as one of the least understood field of fluid mechanics, and therefore much improvements in fluid flow systems are still expected from a better understanding of this physics.
Dany Vandromme, Hieu Haminh
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Despite important efforts of many scientists over the decades, turbulence continues to persist as one of the least understood field of fluid mechanics, and therefore much improvements in fluid flow systems are still expected from a better understanding of this physics.
Dany Vandromme, Hieu Haminh
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1998
The computational results for an unsteady mixing layer flow are presented. An implicit numerical scheme for the solution of the unsteady NS equations has been used in junction with an algebraic turbulent model. Computations were performed using both first and second order time accuracy.
S. Tsangaris, A. Pentaris, M. Thomadakis
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The computational results for an unsteady mixing layer flow are presented. An implicit numerical scheme for the solution of the unsteady NS equations has been used in junction with an algebraic turbulent model. Computations were performed using both first and second order time accuracy.
S. Tsangaris, A. Pentaris, M. Thomadakis
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The enhancement of the mixing of a 2D supersonic mixing layer
Science China Mathematics, 2002Numerical simulations have been performed for a 2D supersonic mixing layer with two different types of excitation, namely the introduction of a T-S wave at the inlet and the enforcement of the inflow speed on the low speed side to have periodic stream-wise undulations. The results showed that both ways were effective when the convective Mach number Mc
Wei Cao, Heng Zhou
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Mixed and mixing layer depths simulated by an OGCM
Journal of Oceanography, 2008The global distributions of the mixed layer depth h D , representing the depth of uniform density, and the mixing layer depth h K , representing the depth of active turbulent mixing, were simulated using an ocean general circulation model (OGCM), and ...
Yign Noh, Woo-Sung Lee
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LES of scalar mixing in supersonic mixing layers
Proceedings of the Combustion Institute, 2005Abstract Large eddy simulation (LES) of a compressible mixing layer is carried out to investigate scalar mixing in mixed supersonic-subsonic shear layers. The ability of two sub-grid models to predict scalar mixing in compressible shear layers is assessed in this study.
V. Sankaran, S. Menon
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