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 …

Oct 1, 2013 · 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?

According to Kolmogorov, the energy spectrum function of a turbulent fluid is given as, E(k) = Cϵ2 3k−5 3 E (k) = C ϵ 2 3 k 5 3 where ϵ ϵ is the energy flux and k = 2π r k = 2 π r where r r is the length scale. …

Oct 3, 2020 · 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 …

Sep 26, 2022 · 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 …

Feb 12, 2022 · The "Taylor Hypothesis" is founded on the idea that the changes observed in any given plasma measured in the solar wind propagate at speeds much much less than the bulk flow speed of …

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 …

Apr 11, 2021 · The turbulence seems to increase with height from the surface. Then let's look at wind flowing over ground. The picture below is from this website. Now here there is an obstruction on the …

Nov 1, 2019 · Fluid turbulence is a highly complex and non-linear chaotic phenomenon. Great difficulties and complications are encountered when trying to accurately and robustly calculate or simulate fluid …

Feb 8, 2015 · This is called turbulence. In the context of turbulence, one often comes across the term "weak" and "strong" turbulence. Both lead to energy cascades, but the difference between the two …