The subject of turbulence to transformationairlinesembracedigital bcg encompasses a wide range of important elements. What is the mystery of turbulence? - Physics Stack Exchange. What is called turbulence are precisely those states where the flow is irregular. However as this transition to turbulence depends on the constituents and parameters of the system and leads to very different states, there exists sofar no general physical theory of turbulence. From another angle, why is turbulence dissipation $\epsilon$ defined this way?.
This term is turbulence kinetic energy dissipation rate $\epsilon$, which represents the rate at which Kolmogorov eddies energy is converted back into the flow’s internal energy. I understand the physic of energy cascade and turbulence dissipation, but I don't understand how did we relate the above definition to turbulence dissipation? What are the length and time scales in turbulence?. I haven't been able to understand what are does someone mean by length and time scales, while talking about turbulence.
Can someone explain it? This perspective suggests that, taylor's hypothesis in turbulence - Physics Stack Exchange. The "Taylor Hypothesis" is founded on the idea that the changes observed in any given measured in the propagate at speeds much much less than the bulk flow speed of the solar wind (well, this has been applied in other regions of space than just the solar wind, but it's most commonly assumed there). We start with the nonrelativistic relation (i.e., assume V/c $\ll$ 1) given by: $$ \omega_ {sc ... What does “eddy” mean in turbulence?
a newbie in turbulence study, very confused about the concept of eddy, I feel the word "eddy" having two meanings in fluid-mechanics maybe more and i'm not sure if i understand correctly.... Moreover, turbulence - Physical Explanation for "Kolmogorov -5/3 spectrum" in .... According to Kolmogorov, the energy spectrum function of a turbulent fluid is given as, $E (k)=C\epsilon^ {\frac {2} {3}}k^ {\frac {-5} {3}}$ where $\epsilon$ is the ...
how to determine if a vortex is laminar or turbulent. How do I determine if the vortex so formed is laminar or turbulent? The flow in your case will have some 'lamina' features and be fully turbulent.
To establish the dominating factor in this case should be obvious. It is the bulk motion of the flow that drives the type of vortex you describe, not turbulence. What paremeter will indiacate this? What causes wind gusts? This perspective suggests that, in this Wikipedia article, Turbulence is caused by excessive kinetic energy in parts of a fluid flow, which overcomes the damping effect of the fluid's viscosity.
From another angle, for this reason turbulence is commonly realized in low viscosity fluids You ask: It isn't clear to me what cause gusts, sudden increase in wind speed that lasts a few seconds at flat surfaces like sea, lake, desert, ice ... fluid dynamics - What is enstrophy? Note that the vortex stretching -> turbulence cascade connection in the enstrophy -> vortex stretching -> turbulence cascade is a jump I made, not the text. Not sure how valid it is, iirc it's been shown that vortex stretching is not the only/dominant term in the turbulence cascade.
fluid dynamics - Is turbulence more likely to form with the Euler ....
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