A recent hydrodynamic theory of superfluid turbulence in He II developed by the author is applied to the dynamics of a homogeneous vortex tangle. The theory contains five unknown macroscopic coefficients. These coefficients are determined by relating equations of the hydrodynamic theory to similar e
Hydrodynamic aspects in the problems of theory of superfluid turbulence
β Scribed by Sergey Nemirovskii; Louiza Kondaurova; Mikhail Nedoboiko
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 248 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0011-2275
No coin nor oath required. For personal study only.
β¦ Synopsis
The theory of superfluid turbulence deals with the flows and counterflow of HeII under conditions which are usually achieved in the various applied problems. Thus this theory plays a key role in the developing of the methods of description and calculation of the standard problems whenever HeII is used. However the theory of superfluid turbulence itself faces some principal difficulties such as slow decay problem and the question of initial generation of vortices in unperturbed helium. In the paper we show that these classical problem can be resolved at least partly by the methods of hydrodynamics of the superfluid turbulence.
π SIMILAR VOLUMES
The purpose of this paper is to clarify some mathematical issues associated with Ž . w the direct-interaction approximation DIA given by Kraichnan Phys. Re¨. 109 Ž .
In this paper, we revisit the claim that the Eulerian and quasi-Lagrangian same time correlation tensors are equal. This statement allows us to transform the results of an MSR quasi-Lagrangian statistical theory of hydrodynamic turbulence back to the Eulerian representation. We define a hierarchy of
Dispersion relations for hydrodynamic modes are normally derived in the limit of small damping. This limit covers the entire hydrodynamic region as long as the region conincides with the small damping region (e.g., in 4He-II). This is not the case in superfluid 3He. In this paper the dispersion rel