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Results tagged with turbulence
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user 70242
A regime of nonlinear viscous flow characterized by random, rotational motion with a wide range of length scales. Its study is critical to many fields, such as aerospace, atmospheric science, chemical engineering, and astrophysics.
1
vote
Accepted
Kolmogorov scale why $d\sim \left( \frac{\nu^3}{\epsilon} \right)^{1/4}$ and not $d\propto \...
I think the most intuitive but maybe not the most mathematically correct interpretation is the implicit assumption that viscous forces start dominating over inertial forces at the Kolmogorov scale. Th …
- 3,489
5
votes
Accepted
What is actually the characteristic length in fluid dynamics description?
The characteristic length is the dimension that defines the length scale of a physical system. This implies that for any system, which my contain several length scales, there may only be one character …
- 3,489
8
votes
Accepted
Why is the Reynolds number "the way it is?" Why is its order the way it is?
smooth laminar flow (except for near a boundary where they are still important) and inertia of the flow causes it to 'trip' over itself causing vortices and in general chaotic behaviour associated with turbulence … Note also that real turbulence is inherently unsteady, my treatment above of the steady
Navier-Stokes equations for different regimes was to focus on the role of the Reynolds number and simply to keep …
- 3,489