Sentences with phrase «of turbulent fluids»

Even the researchers who created this image had a tough time interpreting its complex representation how of turbulent fluids flow in three dimensions.

The team directly measured terms in turbulence model equations, providing insights into the global nature of the mixing (e.g., faster mixing near the edges of the turbulent fluid layer when compared with the core) and identifying the dominant mechanisms governing the flow evolution.

Not exact matches

Nick Clegg is examine the «fluid and unpredictable state» of the UK's turbulent political scene in...

«Beyond a certain velocity, all things fluid get unstable — they will fluctuate and become turbulent,» says Danesh Tafti, an associate professor of mechanical engineering at Virginia Tech.

Because laminar - turbulent transition is governed by Reynolds number, the same transition occurs if the size of the object is gradually increased, or the viscosity of the fluid is decreased, or if the density of the fluid is increased.

Fluid flows can take one of two forms: well - ordered «laminar» or highly disordered «turbulent» motion.

The opposite of this is a turbulent flow which is characterized by vortices and chaotic changes in pressure and velocity within the fluid.

For such flow profiles the processes that sustain and create turbulent eddies fail and the fluid gradually returns to smooth laminar motion and it remained laminar until it reached the end of the pipe.

In 1998, his previous fundamental work in turbulent combustion at the University of Colorado at Boulder led Dr. Mahalingam to do NSF - sponsored field research in Alaska comparing the properties of prescribed permafrost burns to help develop models describing the chemistry and fluid dynamics of fires.

The Southampton research team, led by Richard Sandberg, Professor of Fluid Dynamics and Aeroacoustics, and including Dr Andrew Wheeler and Professor Neil Sandham, has identified that Direct Numerical Simulations (DNS), a model - free approach based on first principles (no assumptions or modelling are used) can help to develop an improved understanding of the role of turbulent phenomena in the flow - field and determine the validity of current turbulence modelling.

Understanding this complicated, roiling turbulent state is one of the great challenges of fluid dynamics.

To the researchers» surprise, their calculations showed that turbulent flows of a class of superfluids on a flat surface behave not like those of ordinary fluids in 2 - D, but more like 3 - D fluids, which morph from relatively uniform, large structures to smaller and smaller structures.

Using further 3 - D dynamo simulations, which model the generation of magnetic field by turbulent fluid motions, Driscoll looked more carefully at the expected changes in the magnetic field over this period.

In research featured on the cover of Journal of Fluid Mechanics, an interdisciplinary Los Alamos team took a series of first - time measurements of turbulent mixing, providing new insights for turbulence modelers.

That is to say, the transport of energy is (over some range of wavelengths) from shorter to longer wavelengths, the opposite of what is typically seen in a fluid, where energy is dissipated by the small - scale turbulent structures.

Instead, it is a dynamically active, essentially turbulent fluid, in which large - scale tracer patterns arise from active turbulence and do not necessarily imply domination of the physics and climate system by large - scale flow fields....»

To improve the heat transfer between fluid boundaries you can increase the turbulent flow, which increases both the molecular contact rate and the rate of diffusion in the fluid.

The current thinking in fluid dynamics, for which there is ample theoretical and computational evidence is that the Navier - Stokes equation if solved accurately are very accurate for a wide range of flows including turbulent flows.

Now, Leif, the cause of the turbulent field or natural convection is the suitable flow of energy from the solar core against gravity towards the surface, and the laws of fluid dynamics under conditions in which the convective cell has rotational and orbital components of angular momentum as determined by the path of the sun the planets force it to follow.

We demonstrate the energy with a very simple model in which two fluid elements of equal mass exchange positions, calling to mind a turbulent field or natural convection.

Yet making progress is challenging, in part because their dynamics involve three - dimensional, turbulent fluid motions on the scale of a few meters, the nonlinear interaction of turbulence with the formation of cloud droplets, and the interaction of these cloud droplets with radiation (e.g. Wood (2012)-RRB-.

Therefore these turbulent kinematic viscosities are not independent of the fluid.

But then to get at the crux of Judy's complaint about Jerry's air / molasses comment, is the turbulent viscocity independent of the fluid?