Results 161 to 170 of about 196,628 (219)

A Mixed-Layer Model Of The Well-Mixed Stratocumulus-Topped Boundary Layer

Boundary-Layer Meteorology, 2001
Recently a range of sophisticated large-eddy simulations of thecloud-topped boundary layer have been intercompared and furthercompared with observations and single column models. Here we comparethese results with perhaps the simplest model of the cloud-toppedboundary layer, namely a mixed-layer model.
J. L. Pelly, S. E. Belcher
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On Disturbances to a Stratified Mixing Layer

Studies in Applied Mathematics, 2001
Using a nonlinear critical layer analysis, we examine the behavior of disturbances to the Holmboe model of a stratified shear layer for Richardson numbers 0<J≤1/4, regarding J as an ϑ (1) quantity rather than a small quantity. By examining the structure of the solution inside the critical layer, we demonstrate that, for this particular flow ...
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A non-resonant triad on a mixing layer

Fluid Dynamics Research, 2002
Summary: 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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Modelling of compressibility effects in mixing layers

Journal of Turbulence, 2002
The 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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Frontogenesis in Mixed Layers

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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The compressible mixing layer

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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On the equatorial mixed layer

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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Jets and mixing layers

2004
Laser-induced fluorescence (LIF) diagnostics and highspeed, real-time digital image acquisition techniques are combined to map the composition field in a water mixing layer. A fluorescent dye, which is premixed with the lowspeed freestream fluid and dilutes by mixing with the highspeed fluid, is used to monitor the relative concentration of high-speed ...
Koochesfahani, M. M., Dimotakis, P. E., Gharib, M., Derango, P., Villermaux, E., Rehab, H., Hopfinger, E. J., Parekh, D. E., Reynolds, W. C., Mungal, M. G., Loiseleux, T., Chomaz, J.-M., Fric, T. F., Roshko, A., Gogineni, S. P., Whitaker, M. M., Goss, L. P., Roquemore, W. M., Wernz, S., Fasel, H. F., Gogineni, S., Shih, C., Krothapalli, A.   +22 more
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Method for enhancing the mixing of a compressible mixing layer

Science in China Series A: Mathematics, 2000
Numerical simulations have been done for a compressible mixing layer, in which the inflow speed on the low speed side was made to have periodic undulations, so as to see if this method could enhance the mixing effect of the layer. Systematic computations for a 2-D compressible mixing layer with Mach number M e = 0.6 have been done, and the results ...
Zhe Zhang, Jisheng Luo, Heng Zhou
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Supersonic Mixing Layer

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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